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FAILED: patch "[PATCH] mm/memcontrol.c: fix use after free in mem_cgroup_iter()" failed to apply to 4.9-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.9-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 54a83d6bcbf8f4700013766b974bf9190d40b689 Mon Sep 17 00:00:00 2001 From: Miles Chen <miles.chen(a)mediatek.com> Date: Tue, 13 Aug 2019 15:37:28 -0700 Subject: [PATCH] mm/memcontrol.c: fix use after free in mem_cgroup_iter() This patch is sent to report an use after free in mem_cgroup_iter() after merging commit be2657752e9e ("mm: memcg: fix use after free in mem_cgroup_iter()"). I work with android kernel tree (4.9 & 4.14), and commit be2657752e9e ("mm: memcg: fix use after free in mem_cgroup_iter()") has been merged to the trees. However, I can still observe use after free issues addressed in the commit be2657752e9e. (on low-end devices, a few times this month) backtrace: css_tryget <- crash here mem_cgroup_iter shrink_node shrink_zones do_try_to_free_pages try_to_free_pages __perform_reclaim __alloc_pages_direct_reclaim __alloc_pages_slowpath __alloc_pages_nodemask To debug, I poisoned mem_cgroup before freeing it: static void __mem_cgroup_free(struct mem_cgroup *memcg) for_each_node(node) free_mem_cgroup_per_node_info(memcg, node); free_percpu(memcg->stat); + /* poison memcg before freeing it */ + memset(memcg, 0x78, sizeof(struct mem_cgroup)); kfree(memcg); } The coredump shows the position=0xdbbc2a00 is freed. (gdb) p/x ((struct mem_cgroup_per_node *)0xe5009e00)->iter[8] $13 = {position = 0xdbbc2a00, generation = 0x2efd} 0xdbbc2a00: 0xdbbc2e00 0x00000000 0xdbbc2800 0x00000100 0xdbbc2a10: 0x00000200 0x78787878 0x00026218 0x00000000 0xdbbc2a20: 0xdcad6000 0x00000001 0x78787800 0x00000000 0xdbbc2a30: 0x78780000 0x00000000 0x0068fb84 0x78787878 0xdbbc2a40: 0x78787878 0x78787878 0x78787878 0xe3fa5cc0 0xdbbc2a50: 0x78787878 0x78787878 0x00000000 0x00000000 0xdbbc2a60: 0x00000000 0x00000000 0x00000000 0x00000000 0xdbbc2a70: 0x00000000 0x00000000 0x00000000 0x00000000 0xdbbc2a80: 0x00000000 0x00000000 0x00000000 0x00000000 0xdbbc2a90: 0x00000001 0x00000000 0x00000000 0x00100000 0xdbbc2aa0: 0x00000001 0xdbbc2ac8 0x00000000 0x00000000 0xdbbc2ab0: 0x00000000 0x00000000 0x00000000 0x00000000 0xdbbc2ac0: 0x00000000 0x00000000 0xe5b02618 0x00001000 0xdbbc2ad0: 0x00000000 0x78787878 0x78787878 0x78787878 0xdbbc2ae0: 0x78787878 0x78787878 0x78787878 0x78787878 0xdbbc2af0: 0x78787878 0x78787878 0x78787878 0x78787878 0xdbbc2b00: 0x78787878 0x78787878 0x78787878 0x78787878 0xdbbc2b10: 0x78787878 0x78787878 0x78787878 0x78787878 0xdbbc2b20: 0x78787878 0x78787878 0x78787878 0x78787878 0xdbbc2b30: 0x78787878 0x78787878 0x78787878 0x78787878 0xdbbc2b40: 0x78787878 0x78787878 0x78787878 0x78787878 0xdbbc2b50: 0x78787878 0x78787878 0x78787878 0x78787878 0xdbbc2b60: 0x78787878 0x78787878 0x78787878 0x78787878 0xdbbc2b70: 0x78787878 0x78787878 0x78787878 0x78787878 0xdbbc2b80: 0x78787878 0x78787878 0x00000000 0x78787878 0xdbbc2b90: 0x78787878 0x78787878 0x78787878 0x78787878 0xdbbc2ba0: 0x78787878 0x78787878 0x78787878 0x78787878 In the reclaim path, try_to_free_pages() does not setup sc.target_mem_cgroup and sc is passed to do_try_to_free_pages(), ..., shrink_node(). In mem_cgroup_iter(), root is set to root_mem_cgroup because sc->target_mem_cgroup is NULL. It is possible to assign a memcg to root_mem_cgroup.nodeinfo.iter in mem_cgroup_iter(). try_to_free_pages struct scan_control sc = {...}, target_mem_cgroup is 0x0; do_try_to_free_pages shrink_zones shrink_node mem_cgroup *root = sc->target_mem_cgroup; memcg = mem_cgroup_iter(root, NULL, &reclaim); mem_cgroup_iter() if (!root) root = root_mem_cgroup; ... css = css_next_descendant_pre(css, &root->css); memcg = mem_cgroup_from_css(css); cmpxchg(&iter->position, pos, memcg); My device uses memcg non-hierarchical mode. When we release a memcg: invalidate_reclaim_iterators() reaches only dead_memcg and its parents. If non-hierarchical mode is used, invalidate_reclaim_iterators() never reaches root_mem_cgroup. static void invalidate_reclaim_iterators(struct mem_cgroup *dead_memcg) { struct mem_cgroup *memcg = dead_memcg; for (; memcg; memcg = parent_mem_cgroup(memcg) ... } So the use after free scenario looks like: CPU1 CPU2 try_to_free_pages do_try_to_free_pages shrink_zones shrink_node mem_cgroup_iter() if (!root) root = root_mem_cgroup; ... css = css_next_descendant_pre(css, &root->css); memcg = mem_cgroup_from_css(css); cmpxchg(&iter->position, pos, memcg); invalidate_reclaim_iterators(memcg); ... __mem_cgroup_free() kfree(memcg); try_to_free_pages do_try_to_free_pages shrink_zones shrink_node mem_cgroup_iter() if (!root) root = root_mem_cgroup; ... mz = mem_cgroup_nodeinfo(root, reclaim->pgdat->node_id); iter = &mz->iter[reclaim->priority]; pos = READ_ONCE(iter->position); css_tryget(&pos->css) <- use after free To avoid this, we should also invalidate root_mem_cgroup.nodeinfo.iter in invalidate_reclaim_iterators(). [cai(a)lca.pw: fix -Wparentheses compilation warning] Link: http://lkml.kernel.org/r/1564580753-17531-1-git-send-email-cai@lca.pw Link: http://lkml.kernel.org/r/20190730015729.4406-1-miles.chen@mediatek.com Fixes: 5ac8fb31ad2e ("mm: memcontrol: convert reclaim iterator to simple css refcounting") Signed-off-by: Miles Chen <miles.chen(a)mediatek.com> Signed-off-by: Qian Cai <cai(a)lca.pw> Acked-by: Michal Hocko <mhocko(a)suse.com> Cc: Johannes Weiner <hannes(a)cmpxchg.org> Cc: Vladimir Davydov <vdavydov.dev(a)gmail.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds(a)linux-foundation.org> diff --git a/mm/memcontrol.c b/mm/memcontrol.c index cdbb7a84cb6e..2e405e058eda 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -1130,26 +1130,45 @@ void mem_cgroup_iter_break(struct mem_cgroup *root, css_put(&prev->css); } -static void invalidate_reclaim_iterators(struct mem_cgroup *dead_memcg) +static void __invalidate_reclaim_iterators(struct mem_cgroup *from, + struct mem_cgroup *dead_memcg) { - struct mem_cgroup *memcg = dead_memcg; struct mem_cgroup_reclaim_iter *iter; struct mem_cgroup_per_node *mz; int nid; int i; - for (; memcg; memcg = parent_mem_cgroup(memcg)) { - for_each_node(nid) { - mz = mem_cgroup_nodeinfo(memcg, nid); - for (i = 0; i <= DEF_PRIORITY; i++) { - iter = &mz->iter[i]; - cmpxchg(&iter->position, - dead_memcg, NULL); - } + for_each_node(nid) { + mz = mem_cgroup_nodeinfo(from, nid); + for (i = 0; i <= DEF_PRIORITY; i++) { + iter = &mz->iter[i]; + cmpxchg(&iter->position, + dead_memcg, NULL); } } } +static void invalidate_reclaim_iterators(struct mem_cgroup *dead_memcg) +{ + struct mem_cgroup *memcg = dead_memcg; + struct mem_cgroup *last; + + do { + __invalidate_reclaim_iterators(memcg, dead_memcg); + last = memcg; + } while ((memcg = parent_mem_cgroup(memcg))); + + /* + * When cgruop1 non-hierarchy mode is used, + * parent_mem_cgroup() does not walk all the way up to the + * cgroup root (root_mem_cgroup). So we have to handle + * dead_memcg from cgroup root separately. + */ + if (last != root_mem_cgroup) + __invalidate_reclaim_iterators(root_mem_cgroup, + dead_memcg); +} + /** * mem_cgroup_scan_tasks - iterate over tasks of a memory cgroup hierarchy * @memcg: hierarchy root

5 years, 9 months

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Linux 5.2.9

by Greg KH

I'm announcing the release of the 5.2.9 kernel. All users of the 5.2 kernel series must upgrade. The updated 5.2.y git tree can be found at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git linux-5.2.y and can be browsed at the normal kernel.org git web browser: https://git.kernel.org/?p=linux/kernel/git/stable/linux-stable.git;a=summary thanks, greg k-h ------------ Makefile | 2 arch/arm/boot/dts/bcm47094-linksys-panamera.dts | 3 arch/arm/boot/dts/imx6ul-14x14-evk.dtsi | 2 arch/arm/boot/dts/imx6ul-geam.dts | 2 arch/arm/boot/dts/imx6ul-isiot.dtsi | 2 arch/arm/boot/dts/imx6ul-pico-hobbit.dts | 2 arch/arm/boot/dts/imx6ul-pico-pi.dts | 4 arch/arm/mach-davinci/sleep.S | 1 arch/arm64/boot/dts/freescale/imx8mm-pinfunc.h | 4 arch/arm64/boot/dts/freescale/imx8mq.dtsi | 3 arch/arm64/include/asm/processor.h | 14 + arch/arm64/kernel/entry.S | 22 + arch/arm64/kernel/process.c | 29 ++ arch/powerpc/kvm/powerpc.c | 5 arch/powerpc/mm/mem.c | 2 arch/powerpc/platforms/pseries/papr_scm.c | 15 + arch/s390/include/asm/page.h | 2 arch/x86/boot/string.c | 8 arch/x86/events/intel/core.c | 7 arch/x86/events/intel/ds.c | 2 arch/x86/include/asm/kvm_host.h | 1 arch/x86/kvm/svm.c | 10 arch/x86/kvm/vmx/vmx.c | 6 arch/x86/kvm/x86.c | 16 + arch/x86/mm/fault.c | 15 - arch/x86/purgatory/Makefile | 36 ++- arch/x86/purgatory/purgatory.c | 6 arch/x86/purgatory/string.c | 23 - block/blk-rq-qos.c | 6 drivers/acpi/arm64/iort.c | 4 drivers/base/platform.c | 9 drivers/block/drbd/drbd_receiver.c | 14 + drivers/block/loop.c | 2 drivers/cpufreq/pasemi-cpufreq.c | 23 - drivers/crypto/ccp/ccp-crypto-aes-galois.c | 14 + drivers/crypto/ccp/ccp-ops.c | 33 ++ drivers/firmware/Kconfig | 5 drivers/firmware/iscsi_ibft.c | 4 drivers/gpu/drm/amd/display/dc/core/dc.c | 6 drivers/gpu/drm/amd/display/dc/core/dc_link.c | 9 drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 9 drivers/gpu/drm/amd/display/dc/core/dc_resource.c | 11 drivers/gpu/drm/amd/display/dc/dce/dce_abm.c | 4 drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 21 - drivers/gpu/drm/amd/display/dc/dcn10/dcn10_resource.c | 2 drivers/gpu/drm/amd/display/dc/inc/core_types.h | 2 drivers/gpu/drm/amd/display/dc/inc/hw/hw_shared.h | 1 drivers/gpu/drm/drm_framebuffer.c | 2 drivers/gpu/drm/i915/vlv_dsi_pll.c | 4 drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 3 drivers/hid/hid-sony.c | 15 + drivers/hwmon/lm75.c | 2 drivers/hwmon/nct6775.c | 3 drivers/hwmon/nct7802.c | 6 drivers/hwmon/occ/common.c | 6 drivers/hwtracing/coresight/coresight-etm-perf.c | 1 drivers/iio/accel/cros_ec_accel_legacy.c | 1 drivers/iio/adc/ingenic-adc.c | 54 ++++ drivers/iio/adc/max9611.c | 2 drivers/iio/adc/rcar-gyroadc.c | 4 drivers/iio/imu/inv_mpu6050/inv_mpu_core.c | 43 +++ drivers/input/mouse/elantech.c | 54 ++-- drivers/input/mouse/synaptics.c | 1 drivers/input/touchscreen/usbtouchscreen.c | 2 drivers/iommu/intel-iommu.c | 8 drivers/mmc/host/cavium.c | 4 drivers/net/can/flexcan.c | 39 ++- drivers/net/can/rcar/rcar_canfd.c | 9 drivers/net/can/usb/peak_usb/pcan_usb_core.c | 8 drivers/net/can/usb/peak_usb/pcan_usb_fd.c | 2 drivers/net/can/usb/peak_usb/pcan_usb_pro.c | 2 drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c | 3 drivers/net/wireless/intel/iwlwifi/mvm/fw.c | 29 +- drivers/net/wireless/intel/iwlwifi/mvm/tx.c | 3 drivers/net/wireless/intel/iwlwifi/pcie/tx.c | 2 drivers/net/wireless/marvell/mwifiex/main.h | 1 drivers/net/wireless/marvell/mwifiex/scan.c | 3 drivers/nvme/host/core.c | 12 - drivers/nvme/host/pci.c | 2 drivers/pci/pci.c | 29 -- drivers/pci/pci.h | 1 drivers/pci/pcie/portdrv_core.c | 66 ----- drivers/s390/cio/qdio_main.c | 12 - drivers/s390/cio/vfio_ccw_cp.c | 4 drivers/s390/cio/vfio_ccw_drv.c | 2 drivers/scsi/device_handler/scsi_dh_alua.c | 7 drivers/scsi/ibmvscsi/ibmvfc.c | 2 drivers/scsi/megaraid/megaraid_sas_base.c | 3 drivers/staging/android/ion/ion_page_pool.c | 3 drivers/staging/fbtft/fbtft-core.c | 43 +-- drivers/staging/gasket/apex_driver.c | 2 drivers/staging/wilc1000/wilc_wfi_cfgoperations.c | 1 drivers/tty/tty_ldsem.c | 5 drivers/usb/core/devio.c | 2 drivers/usb/host/xhci-rcar.c | 9 drivers/usb/misc/iowarrior.c | 7 drivers/usb/misc/rio500.c | 43 ++- drivers/usb/misc/yurex.c | 2 drivers/usb/typec/tcpm/tcpm.c | 58 +++- drivers/usb/typec/ucsi/ucsi_ccg.c | 2 fs/block_dev.c | 5 fs/cifs/smb2pdu.c | 7 fs/dax.c | 2 fs/gfs2/bmap.c | 164 ++++++++------ fs/nfs/delegation.c | 2 fs/nfs/delegation.h | 2 fs/nfs/nfs4proc.c | 39 +-- include/kvm/arm_vgic.h | 1 include/linux/ccp.h | 2 include/linux/kvm_host.h | 1 include/sound/compress_driver.h | 5 include/uapi/linux/nl80211.h | 2 kernel/events/core.c | 2 kernel/irq/affinity.c | 6 lib/test_firmware.c | 5 mm/vmalloc.c | 9 net/ipv4/netfilter/ipt_rpfilter.c | 1 net/ipv6/netfilter/ip6t_rpfilter.c | 8 net/mac80211/cfg.c | 8 net/mac80211/driver-ops.c | 13 - net/mac80211/mlme.c | 10 net/netfilter/nf_conntrack_proto_tcp.c | 8 net/netfilter/nfnetlink.c | 2 net/netfilter/nft_chain_nat.c | 3 net/netfilter/nft_hash.c | 2 net/netfilter/nft_redir.c | 2 scripts/gen_compile_commands.py | 4 scripts/sphinx-pre-install | 74 ++++-- sound/core/compress_offload.c | 60 ++++- sound/firewire/packets-buffer.c | 2 sound/pci/hda/hda_controller.c | 13 - sound/pci/hda/hda_controller.h | 2 sound/pci/hda/hda_intel.c | 63 +++++ sound/sound_core.c | 3 sound/usb/hiface/pcm.c | 11 sound/usb/stream.c | 1 tools/perf/arch/s390/util/machine.c | 31 ++ tools/perf/builtin-probe.c | 10 tools/perf/builtin-script.c | 2 tools/perf/builtin-stat.c | 9 tools/perf/util/evsel.c | 2 tools/perf/util/header.c | 2 tools/perf/util/machine.c | 3 tools/perf/util/machine.h | 2 tools/perf/util/session.c | 22 + tools/perf/util/session.h | 1 tools/perf/util/symbol.c | 7 tools/perf/util/symbol.h | 1 tools/perf/util/thread.c | 12 - tools/perf/util/zstd.c | 4 virt/kvm/arm/arm.c | 11 virt/kvm/arm/vgic/vgic-v2.c | 9 virt/kvm/arm/vgic/vgic-v3.c | 7 virt/kvm/arm/vgic/vgic.c | 11 virt/kvm/arm/vgic/vgic.h | 2 virt/kvm/kvm_main.c | 25 ++ 156 files changed, 1222 insertions(+), 551 deletions(-) Adham Abozaeid (1): staging: wilc1000: flush the workqueue before deinit the host Adrian Hunter (1): perf db-export: Fix thread__exec_comm() Alexey Budankov (1): perf session: Fix loading of compressed data split across adjacent records Alvin Lee (1): drm/amd/display: Only enable audio if speaker allocation exists Andi Kleen (1): perf script: Fix off by one in brstackinsn IPC computation Andrea Arcangeli (1): powerpc: fix off by one in max_zone_pfn initialization for ZONE_DMA Andreas Gruenbacher (1): gfs2: gfs2_walk_metadata fix Anson Huang (1): arm64: dts: imx8mm: Correct SAI3 RXC/TXFS pin's mux option #1 Arnaldo Carvalho de Melo (1): perf probe: Avoid calling freeing routine multiple times for same pointer Arnd Bergmann (4): iio: adc: gyroadc: fix uninitialized return code drbd: dynamically allocate shash descriptor ARM: davinci: fix sleep.S build error on ARMv4 ARM: dts: bcm: bcm47094: add missing #cells for mdio-bus-mux Björn Gerhart (1): hwmon: (nct6775) Fix register address and added missed tolerance for nct6106 Brian Norris (4): driver core: platform: return -ENXIO for missing GpioInt mac80211: don't warn about CW params when not using them mac80211: don't WARN on short WMM parameters from AP mwifiex: fix 802.11n/WPA detection Charles Keepax (4): ALSA: compress: Fix regression on compressed capture streams ALSA: compress: Prevent bypasses of set_params ALSA: compress: Don't allow paritial drain operations on capture streams ALSA: compress: Be more restrictive about when a drain is allowed Christian Hesse (1): netfilter: nf_tables: fix module autoload for redir Derek Lai (1): drm/amd/display: allocate 4 ddc engines for RV2 Dmitry Safonov (1): iommu/vt-d: Check if domain->pgd was allocated Dmitry Torokhov (1): Input: synaptics - enable RMI mode for HP Spectre X360 Emmanuel Grumbach (3): iwlwifi: don't unmap as page memory that was mapped as single iwlwifi: mvm: fix an out-of-bound access iwlwifi: mvm: fix a use-after-free bug in iwl_mvm_tx_tso_segment Eric Yang (1): drm/amd/display: put back front end initialization sequence Farhan Ali (2): vfio-ccw: Set pa_nr to 0 if memory allocation fails for pa_iova_pfn vfio-ccw: Don't call cp_free if we are processing a channel program Florian Westphal (2): netfilter: nfnetlink: avoid deadlock due to synchronous request_module netfilter: conntrack: always store window size un-scaled Gary R Hook (3): crypto: ccp - Fix oops by properly managing allocated structures crypto: ccp - Add support for valid authsize values less than 16 crypto: ccp - Ignore tag length when decrypting GCM ciphertext Gavin Li (1): usb: usbfs: fix double-free of usb memory upon submiturb error Greg Kroah-Hartman (1): Linux 5.2.9 Guenter Roeck (3): usb: typec: tcpm: Add NULL check before dereferencing config usb: typec: tcpm: Ignore unsupported/unknown alternate mode requests hwmon: (nct7802) Fix wrong detection of in4 presence Gwendal Grignou (1): iio: cros_ec_accel_legacy: Fix incorrect channel setting Halil Pasic (1): s390/dma: provide proper ARCH_ZONE_DMA_BITS value Hannes Reinecke (1): scsi: scsi_dh_alua: always use a 2 second delay before retrying RTPG Harmanprit Tatla (1): drm/amd/display: No audio endpoint for Dell MST display Heikki Krogerus (1): usb: typec: ucsi: ccg: Fix uninitilized symbol error Iker Perez del Palomar Sustatxa (1): hwmon: (lm75) Fixup tmp75b clr_mask Ivan Bornyakov (1): staging: gasket: apex: fix copy-paste typo James Morse (1): arm64: entry: SP Alignment Fault doesn't write to FAR_EL1 Jan Kara (1): bdev: Fixup error handling in blkdev_get() Jean-Baptiste Maneyrol (1): iio: imu: mpu6050: add missing available scan masks Jiri Olsa (2): perf tools: Fix proper buffer size for feature processing perf stat: Fix segfault for event group in repeat mode Joakim Zhang (1): can: flexcan: fix stop mode acknowledgment Joe Perches (1): iio: adc: max9611: Fix misuse of GENMASK macro Joerg Roedel (3): x86/mm: Check for pfn instead of page in vmalloc_sync_one() x86/mm: Sync also unmappings in vmalloc_sync_all() mm/vmalloc: Sync unmappings in __purge_vmap_area_lazy() John Crispin (1): nl80211: fix NL80211_HE_MAX_CAPABILITY_LEN Josef Bacik (3): rq-qos: don't reset has_sleepers on spurious wakeups rq-qos: set ourself TASK_UNINTERRUPTIBLE after we schedule rq-qos: use a mb for got_token Julian Parkin (1): drm/amd/display: Fix dc_create failure handling and 666 color depths Julian Wiedmann (1): s390/qdio: add sanity checks to the fast-requeue path Junxiao Bi (1): scsi: megaraid_sas: fix panic on loading firmware crashdump Kai-Heng Feng (1): Input: elantech - enable SMBus on new (2018+) systems Kan Liang (1): perf/x86/intel: Fix SLOTS PEBS event constraint Kevin Hao (2): mmc: cavium: Set the correct dma max segment size for mmc_host mmc: cavium: Add the missing dma unmap when the dma has finished. Laura Garcia Liebana (1): netfilter: nft_hash: fix symhash with modulus one Lei YU (1): hwmon: (occ) Fix division by zero issue Leonard Crestez (1): perf/core: Fix creating kernel counters for PMUs that override event->cpu Li Jun (2): usb: typec: tcpm: free log buf memory when remove debug file usb: typec: tcpm: remove tcpm dir if no children Logan Gunthorpe (1): nvme: fix memory leak caused by incorrect subsystem free Lorenzo Bianconi (1): mac80211: fix possible memory leak in ieee80211_assign_beacon Lorenzo Pieralisi (1): ACPI/IORT: Fix off-by-one check in iort_dev_find_its_id() Luca Coelho (2): iwlwifi: mvm: don't send GEO_TX_POWER_LIMIT on version < 41 iwlwifi: mvm: fix version check for GEO_TX_POWER_LIMIT support Lucas Stach (1): arm64: dts: imx8mq: fix SAI compatible Maarten ter Huurne (1): IIO: Ingenic JZ47xx: Set clock divider on probe Marc Zyngier (2): arm64: Force SSBS on context switch KVM: arm/arm64: Sync ICH_VMCR_EL2 back when about to block Masahiro Yamada (1): gen_compile_commands: lower the entry count threshold Mauro Carvalho Chehab (3): scripts/sphinx-pre-install: fix script for RHEL/CentOS scripts/sphinx-pre-install: don't use LaTeX with CentOS 7 scripts/sphinx-pre-install: fix latexmk dependencies Miaohe Lin (1): netfilter: Fix rpfilter dropping vrf packets by mistake Mika Westerberg (1): Revert "PCI: Add missing link delays required by the PCIe spec" Mikulas Patocka (1): loop: set PF_MEMALLOC_NOIO for the worker thread Ming Lei (1): genirq/affinity: Create affinity mask for single vector Misha Nasledov (1): nvme: ignore subnqn for ADATA SX6000LNP Murton Liu (1): drm/amd/display: Clock does not lower in Updateplanes Navid Emamdoost (1): allocate_flower_entry: should check for null deref Nick Desaulniers (2): x86/purgatory: Do not use __builtin_memcpy and __builtin_memset x86/purgatory: Use CFLAGS_REMOVE rather than reset KBUILD_CFLAGS Nikita Yushchenko (1): can: rcar_canfd: fix possible IRQ storm on high load Oliver Neukum (3): Revert "USB: rio500: simplify locking" usb: iowarrior: fix deadlock on disconnect Input: usbtouchscreen - initialize PM mutex before using it Pavel Shilovsky (1): SMB3: Fix deadlock in validate negotiate hits reconnect Peter Zijlstra (1): tty/ldsem, locking/rwsem: Add missing ACQUIRE to read_failed sleep loop Phil Reid (2): Staging: fbtft: Fix probing of gpio descriptor Staging: fbtft: Fix reset assertion when using gpio descriptor Phil Sutter (1): netfilter: nf_tables: Support auto-loading for inet nat Qian Cai (1): drm: silence variable 'conn' set but not used Roderick Colenbrander (1): HID: sony: Fix race condition between rumble and device remove. Shubhashree Dhar (1): drm/msm/dpu: Correct dpu encoder spinlock initialization SivapiriyanKumarasamy (1): drm/amd/display: Wait for backlight programming completion in set backlight level Stanislav Lisovskiy (1): drm/i915: Fix wrong escape clock divisor init for GLK Stephane Grosjean (1): can: peak_usb: fix potential double kfree_skb() Steve French (1): smb3: send CAP_DFS capability during session setup Suzuki K Poulose (2): coresight: Fix DEBUG_LOCKS_WARN_ON for uninitialized attribute usb: yurex: Fix use-after-free in yurex_delete Sébastien Szymanski (1): ARM: dts: imx6ul: fix clock frequency property name of I2C buses Tai Man (2): drm/amd/display: use encoder's engine id to find matched free audio device drm/amd/display: Increase size of audios array Takashi Iwai (2): ALSA: hda - Don't override global PCM hw info flag ALSA: hda - Workaround for crackled sound on AMD controller (1022:1457) Tetsuo Handa (1): staging: android: ion: Bail out upon SIGKILL when allocating memory. Thomas Richter (2): perf annotate: Fix s390 gap between kernel end and module start perf record: Fix module size on s390 Thomas Tai (1): iscsi_ibft: make ISCSI_IBFT dependson ACPI instead of ISCSI_IBFT_FIND Tomas Bortoli (2): can: peak_usb: pcan_usb_pro: Fix info-leaks to USB devices can: peak_usb: pcan_usb_fd: Fix info-leaks to USB devices Trond Myklebust (3): NFSv4: Fix delegation state recovery NFSv4: Check the return value of update_open_stateid() NFSv4: Fix an Oops in nfs4_do_setattr Tyrel Datwyler (1): scsi: ibmvfc: fix WARN_ON during event pool release Vaibhav Jain (1): powerpc/papr_scm: Force a scm-unbind if initial scm-bind fails Vitaly Kuznetsov (1): KVM/nSVM: properly map nested VMCB Vivek Goyal (1): dax: dax_layout_busy_page() should not unmap cow pages Wanpeng Li (1): KVM: Fix leak vCPU's VMCS value into other pCPU Wen Yang (2): can: flexcan: fix an use-after-free in flexcan_setup_stop_mode() cpufreq/pasemi: fix use-after-free in pas_cpufreq_cpu_init() Wenwen Wang (5): sound: fix a memory leak bug test_firmware: fix a memory leak bug ALSA: usb-audio: fix a memory leak bug ALSA: firewire: fix a memory leak bug ALSA: hiface: fix multiple memory leak bugs Yoshihiro Shimoda (1): usb: host: xhci-rcar: Fix timeout in xhci_suspend() Yunying Sun (1): perf/x86/intel: Fix invalid Bit 13 for Icelake MSR_OFFCORE_RSP_x register Zhenzhong Duan (1): perf/x86: Apply more accurate check on hypervisor platform Zi Yu Liao (1): drm/amd/display: fix DMCU hang when going into Modern Standby

5 years, 9 months

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stable/linux-4.19.y build: 206 builds: 0 failed, 206 passed, 6 warnings (v4.19.67)

by kernelci.org bot

stable/linux-4.19.y build: 206 builds: 0 failed, 206 passed, 6 warnings (v4.19.67) Full Build Summary: https://kernelci.org/build/stable/branch/linux-4.19.y/kernel/v4.19.67/ Tree: stable Branch: linux-4.19.y Git Describe: v4.19.67 Git Commit: a5aa80588fcd5520ece36121c41b7d8e72245e33 Git URL: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git Built: 7 unique architectures Warnings Detected: arc: arm64: arm: i386: mips: lemote2f_defconfig (gcc-8): 1 warning loongson3_defconfig (gcc-8): 2 warnings malta_qemu_32r6_defconfig (gcc-8): 1 warning nlm_xlp_defconfig (gcc-8): 1 warning riscv: x86_64: tinyconfig (gcc-8): 1 warning Warnings summary: 3 net/core/rtnetlink.c:3160:1: warning: the frame size of 1312 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 {standard input}:131: Warning: macro instruction expanded into multiple instructions 1 arch/mips/configs/loongson3_defconfig:55:warning: symbol value 'm' invalid for HOTPLUG_PCI_SHPC 1 .config:1007:warning: override: UNWINDER_GUESS changes choice state ================================================================================ Detailed per-defconfig build reports: -------------------------------------------------------------------------------- 32r2el_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- acs5k_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- acs5k_tiny_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (arm64, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (riscv, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (i386, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (x86_64, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- am200epdkit_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ar7_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- aspeed_g4_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- aspeed_g5_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- assabet_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- at91_dt_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ath25_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ath79_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- axm55xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- axs103_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- axs103_smp_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- badge4_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bcm2835_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bcm47xx_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bcm63xx_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bigsur_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bmips_be_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bmips_stb_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- capcella_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cavium_octeon_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cerfcube_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ci20_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- clps711x_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cm_x2xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cm_x300_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cns3420vb_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cobalt_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- colibri_pxa270_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- colibri_pxa300_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- collie_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- corgi_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- davinci_all_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- db1xxx_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- decstation_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- defconfig (riscv, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- defconfig (arm64, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- dove_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- e55_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ebsa110_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- efm32_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- em_x270_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ep93xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- eseries_pxa_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- exynos_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ezx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- footbridge_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- fuloong2e_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- gcw0_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- gemini_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- gpr_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- h3600_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- h5000_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- hackkit_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- haps_hs_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- haps_hs_smp_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- hisi_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- hsdk_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- i386_defconfig (i386, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- imote2_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- imx_v4_v5_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- imx_v6_v7_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- integrator_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- iop13xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- iop32x_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- iop33x_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ip22_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ip27_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ip28_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ip32_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ixp4xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- jazz_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- jmr3927_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- jornada720_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- keystone_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ks8695_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lart_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lasat_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lemote2f_defconfig (mips, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: net/core/rtnetlink.c:3160:1: warning: the frame size of 1312 bytes is larger than 1024 bytes [-Wframe-larger-than=] -------------------------------------------------------------------------------- loongson1b_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- loongson1c_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- loongson3_defconfig (mips, gcc-8) — PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: arch/mips/configs/loongson3_defconfig:55:warning: symbol value 'm' invalid for HOTPLUG_PCI_SHPC net/core/rtnetlink.c:3160:1: warning: the frame size of 1312 bytes is larger than 1024 bytes [-Wframe-larger-than=] -------------------------------------------------------------------------------- lpc18xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lpc32xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lpd270_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lubbock_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- magician_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mainstone_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- malta_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- malta_kvm_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- malta_kvm_guest_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- malta_qemu_32r6_defconfig (mips, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: {standard input}:131: Warning: macro instruction expanded into multiple instructions -------------------------------------------------------------------------------- maltaaprp_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltasmvp_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltasmvp_eva_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltaup_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltaup_xpa_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- markeins_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mini2440_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mips_paravirt_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mmp2_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- moxart_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mpc30x_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mps2_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- msp71xx_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mtx1_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- multi_v4t_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- multi_v5_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- multi_v7_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mv78xx0_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mvebu_v5_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mvebu_v7_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mxs_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- neponset_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- netwinder_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- netx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nhk8815_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nlm_xlp_defconfig (mips, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: net/core/rtnetlink.c:3160:1: warning: the frame size of 1312 bytes is larger than 1024 bytes [-Wframe-larger-than=] -------------------------------------------------------------------------------- nlm_xlr_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nsim_hs_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nsim_hs_smp_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nsimosci_hs_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nsimosci_hs_smp_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nuc910_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nuc950_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nuc960_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- omap1_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- omap2plus_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- omega2p_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- orion5x_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- oxnas_v6_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- palmz72_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pcm027_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pic32mzda_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pistachio_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pleb_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pnx8335_stb225_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- prima2_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pxa168_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pxa255-idp_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pxa3xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pxa910_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pxa_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- qcom_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- qi_lb60_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- raumfeld_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rb532_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rbtx49xx_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- realview_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rm200_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rpc_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rt305x_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- s3c2410_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- s3c6400_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- s5pv210_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- sama5_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- sb1250_swarm_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- shannon_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- shmobile_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- simpad_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- socfpga_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- spear13xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- spear3xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- spear6xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- spitz_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- stm32_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- sunxi_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tango4_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tb0219_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tb0226_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tb0287_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tct_hammer_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tegra_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (i386, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (arm64, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (x86_64, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: .config:1007:warning: override: UNWINDER_GUESS changes choice state -------------------------------------------------------------------------------- tinyconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (riscv, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- trizeps4_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- u300_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- u8500_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vdk_hs38_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vdk_hs38_smp_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- versatile_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vexpress_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vf610m4_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- viper_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vocore2_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vt8500_v6_v7_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- workpad_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- x86_64_defconfig (x86_64, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- xcep_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- xway_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- zeus_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- zx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches --- For more info write to <info(a)kernelci.org>

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stable/linux-5.2.y build: 209 builds: 0 failed, 209 passed, 20 warnings (v5.2.9)

by kernelci.org bot

stable/linux-5.2.y build: 209 builds: 0 failed, 209 passed, 20 warnings (v5.2.9) Full Build Summary: https://kernelci.org/build/stable/branch/linux-5.2.y/kernel/v5.2.9/ Tree: stable Branch: linux-5.2.y Git Describe: v5.2.9 Git Commit: aad39e30fb9e6e7212318a1dad898f36f1075648 Git URL: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git Built: 7 unique architectures Warnings Detected: arc: arm64: arm: integrator_defconfig (gcc-8): 2 warnings multi_v4t_defconfig (gcc-8): 2 warnings multi_v5_defconfig (gcc-8): 2 warnings realview_defconfig (gcc-8): 2 warnings s3c6400_defconfig (gcc-8): 2 warnings u300_defconfig (gcc-8): 2 warnings i386: mips: db1xxx_defconfig (gcc-8): 1 warning malta_qemu_32r6_defconfig (gcc-8): 1 warning rb532_defconfig (gcc-8): 1 warning riscv: rv32_defconfig (gcc-8): 4 warnings x86_64: tinyconfig (gcc-8): 1 warning Warnings summary: 6 arch/arm/mm/init.c:453:13: warning: unused variable 'itcm_end' [-Wunused-variable] 6 arch/arm/mm/init.c:452:13: warning: unused variable 'dtcm_end' [-Wunused-variable] 2 <stdin>:830:2: warning: #warning syscall fstat64 not implemented [-Wcpp] 2 <stdin>:1127:2: warning: #warning syscall fstatat64 not implemented [-Wcpp] 1 {standard input}:131: Warning: macro instruction expanded into multiple instructions 1 drivers/mtd/nand/raw/au1550nd.c:443:57: warning: pointer type mismatch in conditional expression 1 drivers/ata/pata_rb532_cf.c:161:24: warning: unused variable 'info' [-Wunused-variable] 1 .config:1167:warning: override: UNWINDER_GUESS changes choice state ================================================================================ Detailed per-defconfig build reports: -------------------------------------------------------------------------------- 32r2el_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- acs5k_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- acs5k_tiny_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (arm64, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (riscv, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (i386, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- allnoconfig (x86_64, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- am200epdkit_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ar7_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- aspeed_g4_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- aspeed_g5_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- assabet_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- at91_dt_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ath25_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ath79_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- axm55xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- axs103_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- axs103_smp_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- badge4_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bcm2835_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bcm47xx_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bcm63xx_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bigsur_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bmips_be_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- bmips_stb_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- capcella_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cavium_octeon_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cerfcube_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ci20_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- clps711x_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cm_x2xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cm_x300_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cns3420vb_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- cobalt_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- colibri_pxa270_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- colibri_pxa300_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- collie_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- corgi_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- davinci_all_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- db1xxx_defconfig (mips, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: drivers/mtd/nand/raw/au1550nd.c:443:57: warning: pointer type mismatch in conditional expression -------------------------------------------------------------------------------- decstation_64_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- decstation_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- decstation_r4k_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- defconfig (riscv, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- defconfig (arm64, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- dove_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- e55_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ebsa110_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- efm32_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- em_x270_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ep93xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- eseries_pxa_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- exynos_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ezx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- footbridge_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- fuloong2e_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- gcw0_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- gemini_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- gpr_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- h3600_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- h5000_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- hackkit_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- haps_hs_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- haps_hs_smp_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- hisi_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- hsdk_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- i386_defconfig (i386, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- imote2_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- imx_v4_v5_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- imx_v6_v7_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- integrator_defconfig (arm, gcc-8) — PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: arch/arm/mm/init.c:453:13: warning: unused variable 'itcm_end' [-Wunused-variable] arch/arm/mm/init.c:452:13: warning: unused variable 'dtcm_end' [-Wunused-variable] -------------------------------------------------------------------------------- iop13xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- iop32x_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- iop33x_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ip22_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ip27_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ip28_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ip32_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ixp4xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- jazz_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- jmr3927_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- jornada720_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- keystone_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- ks8695_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lart_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lasat_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lemote2f_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- loongson1b_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- loongson1c_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- loongson3_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lpc18xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lpc32xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lpd270_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- lubbock_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- magician_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mainstone_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- malta_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- malta_kvm_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- malta_kvm_guest_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- malta_qemu_32r6_defconfig (mips, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: {standard input}:131: Warning: macro instruction expanded into multiple instructions -------------------------------------------------------------------------------- maltaaprp_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltasmvp_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltasmvp_eva_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltaup_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- maltaup_xpa_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- markeins_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- milbeaut_m10v_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mini2440_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mips_paravirt_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mmp2_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- moxart_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mpc30x_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mps2_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- msp71xx_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mtx1_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- multi_v4t_defconfig (arm, gcc-8) — PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: arch/arm/mm/init.c:453:13: warning: unused variable 'itcm_end' [-Wunused-variable] arch/arm/mm/init.c:452:13: warning: unused variable 'dtcm_end' [-Wunused-variable] -------------------------------------------------------------------------------- multi_v5_defconfig (arm, gcc-8) — PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: arch/arm/mm/init.c:453:13: warning: unused variable 'itcm_end' [-Wunused-variable] arch/arm/mm/init.c:452:13: warning: unused variable 'dtcm_end' [-Wunused-variable] -------------------------------------------------------------------------------- multi_v7_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mv78xx0_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mvebu_v5_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mvebu_v7_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- mxs_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- neponset_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- netwinder_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- netx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nhk8815_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nlm_xlp_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nlm_xlr_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nsim_hs_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nsim_hs_smp_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nsimosci_hs_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nsimosci_hs_smp_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nuc910_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nuc950_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- nuc960_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- omap1_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- omap2plus_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- omega2p_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- orion5x_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- oxnas_v6_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- palmz72_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pcm027_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pic32mzda_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pistachio_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pleb_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pnx8335_stb225_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- prima2_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pxa168_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pxa255-idp_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pxa3xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pxa910_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- pxa_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- qcom_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- qi_lb60_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rb532_defconfig (mips, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: drivers/ata/pata_rb532_cf.c:161:24: warning: unused variable 'info' [-Wunused-variable] -------------------------------------------------------------------------------- rbtx49xx_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- realview_defconfig (arm, gcc-8) — PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: arch/arm/mm/init.c:453:13: warning: unused variable 'itcm_end' [-Wunused-variable] arch/arm/mm/init.c:452:13: warning: unused variable 'dtcm_end' [-Wunused-variable] -------------------------------------------------------------------------------- rm200_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rpc_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rt305x_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- rv32_defconfig (riscv, gcc-8) — PASS, 0 errors, 4 warnings, 0 section mismatches Warnings: <stdin>:830:2: warning: #warning syscall fstat64 not implemented [-Wcpp] <stdin>:1127:2: warning: #warning syscall fstatat64 not implemented [-Wcpp] <stdin>:830:2: warning: #warning syscall fstat64 not implemented [-Wcpp] <stdin>:1127:2: warning: #warning syscall fstatat64 not implemented [-Wcpp] -------------------------------------------------------------------------------- s3c2410_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- s3c6400_defconfig (arm, gcc-8) — PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: arch/arm/mm/init.c:453:13: warning: unused variable 'itcm_end' [-Wunused-variable] arch/arm/mm/init.c:452:13: warning: unused variable 'dtcm_end' [-Wunused-variable] -------------------------------------------------------------------------------- s5pv210_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- sama5_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- sb1250_swarm_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- shannon_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- shmobile_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- simpad_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- socfpga_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- spear13xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- spear3xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- spear6xx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- spitz_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- stm32_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- sunxi_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tango4_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tb0219_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tb0226_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tb0287_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tct_hammer_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tegra_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (i386, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (arm64, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (x86_64, gcc-8) — PASS, 0 errors, 1 warning, 0 section mismatches Warnings: .config:1167:warning: override: UNWINDER_GUESS changes choice state -------------------------------------------------------------------------------- tinyconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (riscv, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- tinyconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- trizeps4_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- u300_defconfig (arm, gcc-8) — PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: arch/arm/mm/init.c:453:13: warning: unused variable 'itcm_end' [-Wunused-variable] arch/arm/mm/init.c:452:13: warning: unused variable 'dtcm_end' [-Wunused-variable] -------------------------------------------------------------------------------- u8500_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vdk_hs38_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vdk_hs38_smp_defconfig (arc, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- versatile_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vexpress_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vf610m4_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- viper_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vocore2_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- vt8500_v6_v7_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- workpad_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- x86_64_defconfig (x86_64, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- xcep_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- xway_defconfig (mips, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- zeus_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches -------------------------------------------------------------------------------- zx_defconfig (arm, gcc-8) — PASS, 0 errors, 0 warnings, 0 section mismatches --- For more info write to <info(a)kernelci.org>

5 years, 9 months

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FAILED: patch "[PATCH] mm/usercopy: use memory range to be accessed for wraparound" failed to apply to 4.9-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.9-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 951531691c4bcaa59f56a316e018bc2ff1ddf855 Mon Sep 17 00:00:00 2001 From: "Isaac J. Manjarres" <isaacm(a)codeaurora.org> Date: Tue, 13 Aug 2019 15:37:37 -0700 Subject: [PATCH] mm/usercopy: use memory range to be accessed for wraparound check Currently, when checking to see if accessing n bytes starting at address "ptr" will cause a wraparound in the memory addresses, the check in check_bogus_address() adds an extra byte, which is incorrect, as the range of addresses that will be accessed is [ptr, ptr + (n - 1)]. This can lead to incorrectly detecting a wraparound in the memory address, when trying to read 4 KB from memory that is mapped to the the last possible page in the virtual address space, when in fact, accessing that range of memory would not cause a wraparound to occur. Use the memory range that will actually be accessed when considering if accessing a certain amount of bytes will cause the memory address to wrap around. Link: http://lkml.kernel.org/r/1564509253-23287-1-git-send-email-isaacm@codeauror… Fixes: f5509cc18daa ("mm: Hardened usercopy") Signed-off-by: Prasad Sodagudi <psodagud(a)codeaurora.org> Signed-off-by: Isaac J. Manjarres <isaacm(a)codeaurora.org> Co-developed-by: Prasad Sodagudi <psodagud(a)codeaurora.org> Reviewed-by: William Kucharski <william.kucharski(a)oracle.com> Acked-by: Kees Cook <keescook(a)chromium.org> Cc: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Cc: Trilok Soni <tsoni(a)codeaurora.org> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds(a)linux-foundation.org> diff --git a/mm/usercopy.c b/mm/usercopy.c index 2a09796edef8..98e924864554 100644 --- a/mm/usercopy.c +++ b/mm/usercopy.c @@ -147,7 +147,7 @@ static inline void check_bogus_address(const unsigned long ptr, unsigned long n, bool to_user) { /* Reject if object wraps past end of memory. */ - if (ptr + n < ptr) + if (ptr + (n - 1) < ptr) usercopy_abort("wrapped address", NULL, to_user, 0, ptr + n); /* Reject if NULL or ZERO-allocation. */

5 years, 9 months

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FAILED: patch "[PATCH] mm/usercopy: use memory range to be accessed for wraparound" failed to apply to 4.14-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.14-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 951531691c4bcaa59f56a316e018bc2ff1ddf855 Mon Sep 17 00:00:00 2001 From: "Isaac J. Manjarres" <isaacm(a)codeaurora.org> Date: Tue, 13 Aug 2019 15:37:37 -0700 Subject: [PATCH] mm/usercopy: use memory range to be accessed for wraparound check Currently, when checking to see if accessing n bytes starting at address "ptr" will cause a wraparound in the memory addresses, the check in check_bogus_address() adds an extra byte, which is incorrect, as the range of addresses that will be accessed is [ptr, ptr + (n - 1)]. This can lead to incorrectly detecting a wraparound in the memory address, when trying to read 4 KB from memory that is mapped to the the last possible page in the virtual address space, when in fact, accessing that range of memory would not cause a wraparound to occur. Use the memory range that will actually be accessed when considering if accessing a certain amount of bytes will cause the memory address to wrap around. Link: http://lkml.kernel.org/r/1564509253-23287-1-git-send-email-isaacm@codeauror… Fixes: f5509cc18daa ("mm: Hardened usercopy") Signed-off-by: Prasad Sodagudi <psodagud(a)codeaurora.org> Signed-off-by: Isaac J. Manjarres <isaacm(a)codeaurora.org> Co-developed-by: Prasad Sodagudi <psodagud(a)codeaurora.org> Reviewed-by: William Kucharski <william.kucharski(a)oracle.com> Acked-by: Kees Cook <keescook(a)chromium.org> Cc: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Cc: Trilok Soni <tsoni(a)codeaurora.org> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds(a)linux-foundation.org> diff --git a/mm/usercopy.c b/mm/usercopy.c index 2a09796edef8..98e924864554 100644 --- a/mm/usercopy.c +++ b/mm/usercopy.c @@ -147,7 +147,7 @@ static inline void check_bogus_address(const unsigned long ptr, unsigned long n, bool to_user) { /* Reject if object wraps past end of memory. */ - if (ptr + n < ptr) + if (ptr + (n - 1) < ptr) usercopy_abort("wrapped address", NULL, to_user, 0, ptr + n); /* Reject if NULL or ZERO-allocation. */

5 years, 9 months

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FAILED: patch "[PATCH] mm/z3fold.c: fix z3fold_destroy_pool() ordering" failed to apply to 4.14-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.14-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 6051d3bd3b91e96c59e62b8be2dba1cc2b19ee40 Mon Sep 17 00:00:00 2001 From: Henry Burns <henryburns(a)google.com> Date: Tue, 13 Aug 2019 15:37:21 -0700 Subject: [PATCH] mm/z3fold.c: fix z3fold_destroy_pool() ordering The constraint from the zpool use of z3fold_destroy_pool() is there are no outstanding handles to memory (so no active allocations), but it is possible for there to be outstanding work on either of the two wqs in the pool. If there is work queued on pool->compact_workqueue when it is called, z3fold_destroy_pool() will do: z3fold_destroy_pool() destroy_workqueue(pool->release_wq) destroy_workqueue(pool->compact_wq) drain_workqueue(pool->compact_wq) do_compact_page(zhdr) kref_put(&zhdr->refcount) __release_z3fold_page(zhdr, ...) queue_work_on(pool->release_wq, &pool->work) *BOOM* So compact_wq needs to be destroyed before release_wq. Link: http://lkml.kernel.org/r/20190726224810.79660-1-henryburns@google.com Fixes: 5d03a6613957 ("mm/z3fold.c: use kref to prevent page free/compact race") Signed-off-by: Henry Burns <henryburns(a)google.com> Reviewed-by: Shakeel Butt <shakeelb(a)google.com> Reviewed-by: Jonathan Adams <jwadams(a)google.com> Cc: Vitaly Vul <vitaly.vul(a)sony.com> Cc: Vitaly Wool <vitalywool(a)gmail.com> Cc: David Howells <dhowells(a)redhat.com> Cc: Thomas Gleixner <tglx(a)linutronix.de> Cc: Al Viro <viro(a)zeniv.linux.org.uk Cc: Henry Burns <henrywolfeburns(a)gmail.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds(a)linux-foundation.org> diff --git a/mm/z3fold.c b/mm/z3fold.c index 1a029a7432ee..43de92f52961 100644 --- a/mm/z3fold.c +++ b/mm/z3fold.c @@ -818,8 +818,15 @@ static void z3fold_destroy_pool(struct z3fold_pool *pool) { kmem_cache_destroy(pool->c_handle); z3fold_unregister_migration(pool); - destroy_workqueue(pool->release_wq); + + /* + * We need to destroy pool->compact_wq before pool->release_wq, + * as any pending work on pool->compact_wq will call + * queue_work(pool->release_wq, &pool->work). + */ + destroy_workqueue(pool->compact_wq); + destroy_workqueue(pool->release_wq); kfree(pool); }

5 years, 9 months

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FAILED: patch "[PATCH] mm/z3fold.c: fix z3fold_destroy_pool() ordering" failed to apply to 4.19-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.19-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 6051d3bd3b91e96c59e62b8be2dba1cc2b19ee40 Mon Sep 17 00:00:00 2001 From: Henry Burns <henryburns(a)google.com> Date: Tue, 13 Aug 2019 15:37:21 -0700 Subject: [PATCH] mm/z3fold.c: fix z3fold_destroy_pool() ordering The constraint from the zpool use of z3fold_destroy_pool() is there are no outstanding handles to memory (so no active allocations), but it is possible for there to be outstanding work on either of the two wqs in the pool. If there is work queued on pool->compact_workqueue when it is called, z3fold_destroy_pool() will do: z3fold_destroy_pool() destroy_workqueue(pool->release_wq) destroy_workqueue(pool->compact_wq) drain_workqueue(pool->compact_wq) do_compact_page(zhdr) kref_put(&zhdr->refcount) __release_z3fold_page(zhdr, ...) queue_work_on(pool->release_wq, &pool->work) *BOOM* So compact_wq needs to be destroyed before release_wq. Link: http://lkml.kernel.org/r/20190726224810.79660-1-henryburns@google.com Fixes: 5d03a6613957 ("mm/z3fold.c: use kref to prevent page free/compact race") Signed-off-by: Henry Burns <henryburns(a)google.com> Reviewed-by: Shakeel Butt <shakeelb(a)google.com> Reviewed-by: Jonathan Adams <jwadams(a)google.com> Cc: Vitaly Vul <vitaly.vul(a)sony.com> Cc: Vitaly Wool <vitalywool(a)gmail.com> Cc: David Howells <dhowells(a)redhat.com> Cc: Thomas Gleixner <tglx(a)linutronix.de> Cc: Al Viro <viro(a)zeniv.linux.org.uk Cc: Henry Burns <henrywolfeburns(a)gmail.com> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds(a)linux-foundation.org> diff --git a/mm/z3fold.c b/mm/z3fold.c index 1a029a7432ee..43de92f52961 100644 --- a/mm/z3fold.c +++ b/mm/z3fold.c @@ -818,8 +818,15 @@ static void z3fold_destroy_pool(struct z3fold_pool *pool) { kmem_cache_destroy(pool->c_handle); z3fold_unregister_migration(pool); - destroy_workqueue(pool->release_wq); + + /* + * We need to destroy pool->compact_wq before pool->release_wq, + * as any pending work on pool->compact_wq will call + * queue_work(pool->release_wq, &pool->work). + */ + destroy_workqueue(pool->compact_wq); + destroy_workqueue(pool->release_wq); kfree(pool); }

5 years, 9 months

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FAILED: patch "[PATCH] mm: mempolicy: handle vma with unmovable pages mapped" failed to apply to 4.9-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.9-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From a53190a4aaa36494f4d7209fd1fcc6f2ee08e0e0 Mon Sep 17 00:00:00 2001 From: Yang Shi <yang.shi(a)linux.alibaba.com> Date: Tue, 13 Aug 2019 15:37:18 -0700 Subject: [PATCH] mm: mempolicy: handle vma with unmovable pages mapped correctly in mbind When running syzkaller internally, we ran into the below bug on 4.9.x kernel: kernel BUG at mm/huge_memory.c:2124! invalid opcode: 0000 [#1] SMP KASAN CPU: 0 PID: 1518 Comm: syz-executor107 Not tainted 4.9.168+ #2 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 0.5.1 01/01/2011 task: ffff880067b34900 task.stack: ffff880068998000 RIP: split_huge_page_to_list+0x8fb/0x1030 mm/huge_memory.c:2124 Call Trace: split_huge_page include/linux/huge_mm.h:100 [inline] queue_pages_pte_range+0x7e1/0x1480 mm/mempolicy.c:538 walk_pmd_range mm/pagewalk.c:50 [inline] walk_pud_range mm/pagewalk.c:90 [inline] walk_pgd_range mm/pagewalk.c:116 [inline] __walk_page_range+0x44a/0xdb0 mm/pagewalk.c:208 walk_page_range+0x154/0x370 mm/pagewalk.c:285 queue_pages_range+0x115/0x150 mm/mempolicy.c:694 do_mbind mm/mempolicy.c:1241 [inline] SYSC_mbind+0x3c3/0x1030 mm/mempolicy.c:1370 SyS_mbind+0x46/0x60 mm/mempolicy.c:1352 do_syscall_64+0x1d2/0x600 arch/x86/entry/common.c:282 entry_SYSCALL_64_after_swapgs+0x5d/0xdb Code: c7 80 1c 02 00 e8 26 0a 76 01 <0f> 0b 48 c7 c7 40 46 45 84 e8 4c RIP [<ffffffff81895d6b>] split_huge_page_to_list+0x8fb/0x1030 mm/huge_memory.c:2124 RSP <ffff88006899f980> with the below test: uint64_t r[1] = {0xffffffffffffffff}; int main(void) { syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0); intptr_t res = 0; res = syscall(__NR_socket, 0x11, 3, 0x300); if (res != -1) r[0] = res; *(uint32_t*)0x20000040 = 0x10000; *(uint32_t*)0x20000044 = 1; *(uint32_t*)0x20000048 = 0xc520; *(uint32_t*)0x2000004c = 1; syscall(__NR_setsockopt, r[0], 0x107, 0xd, 0x20000040, 0x10); syscall(__NR_mmap, 0x20fed000, 0x10000, 0, 0x8811, r[0], 0); *(uint64_t*)0x20000340 = 2; syscall(__NR_mbind, 0x20ff9000, 0x4000, 0x4002, 0x20000340, 0x45d4, 3); return 0; } Actually the test does: mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 socket(AF_PACKET, SOCK_RAW, 768) = 3 setsockopt(3, SOL_PACKET, PACKET_TX_RING, {block_size=65536, block_nr=1, frame_size=50464, frame_nr=1}, 16) = 0 mmap(0x20fed000, 65536, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_DENYWRITE, 3, 0) = 0x20fed000 mbind(..., MPOL_MF_STRICT|MPOL_MF_MOVE) = 0 The setsockopt() would allocate compound pages (16 pages in this test) for packet tx ring, then the mmap() would call packet_mmap() to map the pages into the user address space specified by the mmap() call. When calling mbind(), it would scan the vma to queue the pages for migration to the new node. It would split any huge page since 4.9 doesn't support THP migration, however, the packet tx ring compound pages are not THP and even not movable. So, the above bug is triggered. However, the later kernel is not hit by this issue due to commit d44d363f6578 ("mm: don't assume anonymous pages have SwapBacked flag"), which just removes the PageSwapBacked check for a different reason. But, there is a deeper issue. According to the semantic of mbind(), it should return -EIO if MPOL_MF_MOVE or MPOL_MF_MOVE_ALL was specified and MPOL_MF_STRICT was also specified, but the kernel was unable to move all existing pages in the range. The tx ring of the packet socket is definitely not movable, however, mbind() returns success for this case. Although the most socket file associates with non-movable pages, but XDP may have movable pages from gup. So, it sounds not fine to just check the underlying file type of vma in vma_migratable(). Change migrate_page_add() to check if the page is movable or not, if it is unmovable, just return -EIO. But do not abort pte walk immediately, since there may be pages off LRU temporarily. We should migrate other pages if MPOL_MF_MOVE* is specified. Set has_unmovable flag if some paged could not be not moved, then return -EIO for mbind() eventually. With this change the above test would return -EIO as expected. [yang.shi(a)linux.alibaba.com: fix review comments from Vlastimil] Link: http://lkml.kernel.org/r/1563556862-54056-3-git-send-email-yang.shi@linux.a… Link: http://lkml.kernel.org/r/1561162809-59140-3-git-send-email-yang.shi@linux.a… Signed-off-by: Yang Shi <yang.shi(a)linux.alibaba.com> Reviewed-by: Vlastimil Babka <vbabka(a)suse.cz> Cc: Michal Hocko <mhocko(a)suse.com> Cc: Mel Gorman <mgorman(a)techsingularity.net> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds(a)linux-foundation.org> diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 932c26845e3e..547cd403ed02 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -403,7 +403,7 @@ static const struct mempolicy_operations mpol_ops[MPOL_MAX] = { }, }; -static void migrate_page_add(struct page *page, struct list_head *pagelist, +static int migrate_page_add(struct page *page, struct list_head *pagelist, unsigned long flags); struct queue_pages { @@ -463,12 +463,11 @@ static int queue_pages_pmd(pmd_t *pmd, spinlock_t *ptl, unsigned long addr, flags = qp->flags; /* go to thp migration */ if (flags & (MPOL_MF_MOVE | MPOL_MF_MOVE_ALL)) { - if (!vma_migratable(walk->vma)) { + if (!vma_migratable(walk->vma) || + migrate_page_add(page, qp->pagelist, flags)) { ret = 1; goto unlock; } - - migrate_page_add(page, qp->pagelist, flags); } else ret = -EIO; unlock: @@ -532,7 +531,14 @@ static int queue_pages_pte_range(pmd_t *pmd, unsigned long addr, has_unmovable = true; break; } - migrate_page_add(page, qp->pagelist, flags); + + /* + * Do not abort immediately since there may be + * temporary off LRU pages in the range. Still + * need migrate other LRU pages. + */ + if (migrate_page_add(page, qp->pagelist, flags)) + has_unmovable = true; } else break; } @@ -961,7 +967,7 @@ static long do_get_mempolicy(int *policy, nodemask_t *nmask, /* * page migration, thp tail pages can be passed. */ -static void migrate_page_add(struct page *page, struct list_head *pagelist, +static int migrate_page_add(struct page *page, struct list_head *pagelist, unsigned long flags) { struct page *head = compound_head(page); @@ -974,8 +980,19 @@ static void migrate_page_add(struct page *page, struct list_head *pagelist, mod_node_page_state(page_pgdat(head), NR_ISOLATED_ANON + page_is_file_cache(head), hpage_nr_pages(head)); + } else if (flags & MPOL_MF_STRICT) { + /* + * Non-movable page may reach here. And, there may be + * temporary off LRU pages or non-LRU movable pages. + * Treat them as unmovable pages since they can't be + * isolated, so they can't be moved at the moment. It + * should return -EIO for this case too. + */ + return -EIO; } } + + return 0; } /* page allocation callback for NUMA node migration */ @@ -1178,9 +1195,10 @@ static struct page *new_page(struct page *page, unsigned long start) } #else -static void migrate_page_add(struct page *page, struct list_head *pagelist, +static int migrate_page_add(struct page *page, struct list_head *pagelist, unsigned long flags) { + return -EIO; } int do_migrate_pages(struct mm_struct *mm, const nodemask_t *from,

5 years, 9 months

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FAILED: patch "[PATCH] mm: mempolicy: handle vma with unmovable pages mapped" failed to apply to 4.14-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.14-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From a53190a4aaa36494f4d7209fd1fcc6f2ee08e0e0 Mon Sep 17 00:00:00 2001 From: Yang Shi <yang.shi(a)linux.alibaba.com> Date: Tue, 13 Aug 2019 15:37:18 -0700 Subject: [PATCH] mm: mempolicy: handle vma with unmovable pages mapped correctly in mbind When running syzkaller internally, we ran into the below bug on 4.9.x kernel: kernel BUG at mm/huge_memory.c:2124! invalid opcode: 0000 [#1] SMP KASAN CPU: 0 PID: 1518 Comm: syz-executor107 Not tainted 4.9.168+ #2 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 0.5.1 01/01/2011 task: ffff880067b34900 task.stack: ffff880068998000 RIP: split_huge_page_to_list+0x8fb/0x1030 mm/huge_memory.c:2124 Call Trace: split_huge_page include/linux/huge_mm.h:100 [inline] queue_pages_pte_range+0x7e1/0x1480 mm/mempolicy.c:538 walk_pmd_range mm/pagewalk.c:50 [inline] walk_pud_range mm/pagewalk.c:90 [inline] walk_pgd_range mm/pagewalk.c:116 [inline] __walk_page_range+0x44a/0xdb0 mm/pagewalk.c:208 walk_page_range+0x154/0x370 mm/pagewalk.c:285 queue_pages_range+0x115/0x150 mm/mempolicy.c:694 do_mbind mm/mempolicy.c:1241 [inline] SYSC_mbind+0x3c3/0x1030 mm/mempolicy.c:1370 SyS_mbind+0x46/0x60 mm/mempolicy.c:1352 do_syscall_64+0x1d2/0x600 arch/x86/entry/common.c:282 entry_SYSCALL_64_after_swapgs+0x5d/0xdb Code: c7 80 1c 02 00 e8 26 0a 76 01 <0f> 0b 48 c7 c7 40 46 45 84 e8 4c RIP [<ffffffff81895d6b>] split_huge_page_to_list+0x8fb/0x1030 mm/huge_memory.c:2124 RSP <ffff88006899f980> with the below test: uint64_t r[1] = {0xffffffffffffffff}; int main(void) { syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0); intptr_t res = 0; res = syscall(__NR_socket, 0x11, 3, 0x300); if (res != -1) r[0] = res; *(uint32_t*)0x20000040 = 0x10000; *(uint32_t*)0x20000044 = 1; *(uint32_t*)0x20000048 = 0xc520; *(uint32_t*)0x2000004c = 1; syscall(__NR_setsockopt, r[0], 0x107, 0xd, 0x20000040, 0x10); syscall(__NR_mmap, 0x20fed000, 0x10000, 0, 0x8811, r[0], 0); *(uint64_t*)0x20000340 = 2; syscall(__NR_mbind, 0x20ff9000, 0x4000, 0x4002, 0x20000340, 0x45d4, 3); return 0; } Actually the test does: mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 socket(AF_PACKET, SOCK_RAW, 768) = 3 setsockopt(3, SOL_PACKET, PACKET_TX_RING, {block_size=65536, block_nr=1, frame_size=50464, frame_nr=1}, 16) = 0 mmap(0x20fed000, 65536, PROT_NONE, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_DENYWRITE, 3, 0) = 0x20fed000 mbind(..., MPOL_MF_STRICT|MPOL_MF_MOVE) = 0 The setsockopt() would allocate compound pages (16 pages in this test) for packet tx ring, then the mmap() would call packet_mmap() to map the pages into the user address space specified by the mmap() call. When calling mbind(), it would scan the vma to queue the pages for migration to the new node. It would split any huge page since 4.9 doesn't support THP migration, however, the packet tx ring compound pages are not THP and even not movable. So, the above bug is triggered. However, the later kernel is not hit by this issue due to commit d44d363f6578 ("mm: don't assume anonymous pages have SwapBacked flag"), which just removes the PageSwapBacked check for a different reason. But, there is a deeper issue. According to the semantic of mbind(), it should return -EIO if MPOL_MF_MOVE or MPOL_MF_MOVE_ALL was specified and MPOL_MF_STRICT was also specified, but the kernel was unable to move all existing pages in the range. The tx ring of the packet socket is definitely not movable, however, mbind() returns success for this case. Although the most socket file associates with non-movable pages, but XDP may have movable pages from gup. So, it sounds not fine to just check the underlying file type of vma in vma_migratable(). Change migrate_page_add() to check if the page is movable or not, if it is unmovable, just return -EIO. But do not abort pte walk immediately, since there may be pages off LRU temporarily. We should migrate other pages if MPOL_MF_MOVE* is specified. Set has_unmovable flag if some paged could not be not moved, then return -EIO for mbind() eventually. With this change the above test would return -EIO as expected. [yang.shi(a)linux.alibaba.com: fix review comments from Vlastimil] Link: http://lkml.kernel.org/r/1563556862-54056-3-git-send-email-yang.shi@linux.a… Link: http://lkml.kernel.org/r/1561162809-59140-3-git-send-email-yang.shi@linux.a… Signed-off-by: Yang Shi <yang.shi(a)linux.alibaba.com> Reviewed-by: Vlastimil Babka <vbabka(a)suse.cz> Cc: Michal Hocko <mhocko(a)suse.com> Cc: Mel Gorman <mgorman(a)techsingularity.net> Cc: <stable(a)vger.kernel.org> Signed-off-by: Andrew Morton <akpm(a)linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds(a)linux-foundation.org> diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 932c26845e3e..547cd403ed02 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -403,7 +403,7 @@ static const struct mempolicy_operations mpol_ops[MPOL_MAX] = { }, }; -static void migrate_page_add(struct page *page, struct list_head *pagelist, +static int migrate_page_add(struct page *page, struct list_head *pagelist, unsigned long flags); struct queue_pages { @@ -463,12 +463,11 @@ static int queue_pages_pmd(pmd_t *pmd, spinlock_t *ptl, unsigned long addr, flags = qp->flags; /* go to thp migration */ if (flags & (MPOL_MF_MOVE | MPOL_MF_MOVE_ALL)) { - if (!vma_migratable(walk->vma)) { + if (!vma_migratable(walk->vma) || + migrate_page_add(page, qp->pagelist, flags)) { ret = 1; goto unlock; } - - migrate_page_add(page, qp->pagelist, flags); } else ret = -EIO; unlock: @@ -532,7 +531,14 @@ static int queue_pages_pte_range(pmd_t *pmd, unsigned long addr, has_unmovable = true; break; } - migrate_page_add(page, qp->pagelist, flags); + + /* + * Do not abort immediately since there may be + * temporary off LRU pages in the range. Still + * need migrate other LRU pages. + */ + if (migrate_page_add(page, qp->pagelist, flags)) + has_unmovable = true; } else break; } @@ -961,7 +967,7 @@ static long do_get_mempolicy(int *policy, nodemask_t *nmask, /* * page migration, thp tail pages can be passed. */ -static void migrate_page_add(struct page *page, struct list_head *pagelist, +static int migrate_page_add(struct page *page, struct list_head *pagelist, unsigned long flags) { struct page *head = compound_head(page); @@ -974,8 +980,19 @@ static void migrate_page_add(struct page *page, struct list_head *pagelist, mod_node_page_state(page_pgdat(head), NR_ISOLATED_ANON + page_is_file_cache(head), hpage_nr_pages(head)); + } else if (flags & MPOL_MF_STRICT) { + /* + * Non-movable page may reach here. And, there may be + * temporary off LRU pages or non-LRU movable pages. + * Treat them as unmovable pages since they can't be + * isolated, so they can't be moved at the moment. It + * should return -EIO for this case too. + */ + return -EIO; } } + + return 0; } /* page allocation callback for NUMA node migration */ @@ -1178,9 +1195,10 @@ static struct page *new_page(struct page *page, unsigned long start) } #else -static void migrate_page_add(struct page *page, struct list_head *pagelist, +static int migrate_page_add(struct page *page, struct list_head *pagelist, unsigned long flags) { + return -EIO; } int do_migrate_pages(struct mm_struct *mm, const nodemask_t *from,

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