August 2018 - Linux-stable-mirror

Nomination of amdgpu fixes for stable backport

by Michel Dänzer

Hi stable kernel maintainers, please squash these amdgpu fixes together and backport them to all applicable stable branches: 15e6b76880e65be24250e30986084b5569b7a06f "drm/amdgpu: Warn and update pin_size values when destroying a pinned BO" 456607d816d89a442a3d5ec98b02c8bc950b5228 "drm/amdgpu: Don't warn on destroying a pinned BO" (These depend on commits a5ccfe5c20740f2fbf00291490cdf8d2373ec255 and ddc21af4d0f37f42b33c54cb69b215997fe5b082, which already have Cc: stable) -- Earthling Michel Dänzer | http://www.amd.com Libre software enthusiast | Mesa and X developer

5 years, 7 months

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[PATCH 4.4 000/124] 4.4.146-stable review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 4.4.146 release. There are 124 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know. Responses should be made by Mon Aug 6 08:26:39 UTC 2018. Anything received after that time might be too late. The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.4.146-rc… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.4.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 4.4.146-rc1 Tony Battersby <tonyb(a)cybernetics.com> scsi: sg: fix minor memory leak in error path Herbert Xu <herbert(a)gondor.apana.org.au> crypto: padlock-aes - Fix Nano workaround data corruption Roman Kagan <rkagan(a)virtuozzo.com> kvm: x86: vmx: fix vpid leak Jiang Biao <jiang.biao2(a)zte.com.cn> virtio_balloon: fix another race between migration and ballooning Jeremy Cline <jcline(a)redhat.com> net: socket: fix potential spectre v1 gadget in socketcall Anton Vasilyev <vasilyev(a)ispras.ru> can: ems_usb: Fix memory leak on ems_usb_disconnect() Linus Torvalds <torvalds(a)linux-foundation.org> squashfs: more metadata hardenings Linus Torvalds <torvalds(a)linux-foundation.org> squashfs: more metadata hardening Jeremy Cline <jcline(a)redhat.com> netlink: Fix spectre v1 gadget in netlink_create() Florian Fainelli <f.fainelli(a)gmail.com> net: dsa: Do not suspend/resume closed slave_dev Eric Dumazet <edumazet(a)google.com> inet: frag: enforce memory limits earlier Eric Dumazet <edumazet(a)google.com> tcp: add one more quick ack after after ECN events Yousuk Seung <ysseung(a)google.com> tcp: refactor tcp_ecn_check_ce to remove sk type cast Eric Dumazet <edumazet(a)google.com> tcp: do not aggressively quick ack after ECN events Eric Dumazet <edumazet(a)google.com> tcp: add max_quickacks param to tcp_incr_quickack and tcp_enter_quickack_mode Eric Dumazet <edumazet(a)google.com> tcp: do not force quickack when receiving out-of-order packets Eugeniy Paltsev <Eugeniy.Paltsev(a)synopsys.com> NET: stmmac: align DMA stuff to largest cache line length Dmitry Safonov <dima(a)arista.com> netlink: Don't shift with UB on nlk->ngroups Dmitry Safonov <dima(a)arista.com> netlink: Do not subscribe to non-existent groups Xiao Liang <xiliang(a)redhat.com> xen-netfront: wait xenbus state change when load module manually Stefan Wahren <stefan.wahren(a)i2se.com> net: lan78xx: fix rx handling before first packet is send tangpengpeng <tangpengpeng(a)higon.com> net: fix amd-xgbe flow-control issue Lorenzo Bianconi <lorenzo.bianconi(a)redhat.com> ipv4: remove BUG_ON() from fib_compute_spec_dst Andrea Adami <andrea.adami(a)gmail.com> ASoC: pxa: Fix module autoload for platform drivers Eric Engestrom <eric.engestrom(a)imgtec.com> dmaengine: pxa_dma: remove duplicate const qualifier Theodore Ts'o <tytso(a)mit.edu> ext4: check for allocation block validity with block group locked Theodore Ts'o <tytso(a)mit.edu> ext4: fix inline data updates with checksums enabled Linus Torvalds <torvalds(a)linux-foundation.org> squashfs: be more careful about metadata corruption Theodore Ts'o <tytso(a)mit.edu> random: mix rdrand with entropy sent in from userspace José Roberto de Souza <jose.souza(a)intel.com> drm: Add DP PSR2 sink enable bit Mauro Carvalho Chehab <mchehab(a)s-opensource.com> media: si470x: fix __be16 annotations Shivasharan S <shivasharan.srikanteshwara(a)broadcom.com> scsi: megaraid_sas: Increase timeout by 1 sec for non-RAID fastpath IOs Xose Vazquez Perez <xose.vazquez(a)gmail.com> scsi: scsi_dh: replace too broad "TP9" string with the exact models Suman Anna <s-anna(a)ti.com> media: omap3isp: fix unbalanced dma_iommu_mapping Tudor-Dan Ambarus <tudor.ambarus(a)microchip.com> crypto: authenc - don't leak pointers to authenc keys Tudor-Dan Ambarus <tudor.ambarus(a)microchip.com> crypto: authencesn - don't leak pointers to authenc keys Dominik Bozek <dominikx.bozek(a)intel.com> usb: hub: Don't wait for connect state at resume for powered-off ports Michal Simek <michal.simek(a)xilinx.com> microblaze: Fix simpleImage format generation Ondrej Mosnáček <omosnace(a)redhat.com> audit: allow not equal op for audit by executable Siva Rebbagondla <siva.rebbagondla(a)redpinesignals.com> rsi: Fix 'invalid vdd' warning in mmc Chris Novakovic <chris(a)chrisn.me.uk> ipconfig: Correctly initialise ic_nameservers Luc Van Oostenryck <luc.vanoostenryck(a)gmail.com> drm/gma500: fix psb_intel_lvds_mode_valid()'s return type Dmitry Osipenko <digetx(a)gmail.com> memory: tegra: Apply interrupts mask per SoC Dmitry Osipenko <digetx(a)gmail.com> memory: tegra: Do not handle spurious interrupts Takashi Sakamoto <o-takashi(a)sakamocchi.jp> ALSA: hda/ca0132: fix build failure when a local macro is defined Satendra Singh Thakur <satendra.t(a)samsung.com> drm/atomic: Handling the case when setting old crtc for plane Mauro Carvalho Chehab <mchehab(a)s-opensource.com> media: siano: get rid of __le32/__le16 cast warnings Jakub Kicinski <jakub.kicinski(a)netronome.com> bpf: fix references to free_bpf_prog_info() in comments Bartlomiej Zolnierkiewicz <b.zolnierkie(a)samsung.com> thermal: exynos: fix setting rising_threshold for Exynos5433 Dan Carpenter <dan.carpenter(a)oracle.com> scsi: megaraid: silence a static checker bug Wenwen Wang <wang6495(a)umn.edu> scsi: 3w-xxxx: fix a missing-check bug Wenwen Wang <wang6495(a)umn.edu> scsi: 3w-9xxx: fix a missing-check bug Thomas Richter <tmricht(a)linux.ibm.com> perf: fix invalid bit in diagnostic entry Thomas Richter <tmricht(a)linux.ibm.com> s390/cpum_sf: Add data entry sizes to sampling trailer entry Sean Lanigan <sean(a)lano.id.au> brcmfmac: Add support for bcm43364 wireless chipset Jane Wan <Jane.Wan(a)nokia.com> mtd: rawnand: fsl_ifc: fix FSL NAND driver to read all ONFI parameter pages Brad Love <brad(a)nextdimension.cc> media: saa7164: Fix driver name in debug output Damien Le Moal <damien.lemoal(a)wdc.com> libata: Fix command retry decision Wei Yongjun <yongjun_wei(a)trendmicro.com.cn> media: rcar_jpu: Add missing clk_disable_unprepare() on error in jpu_open() Marc Zyngier <marc.zyngier(a)arm.com> dma-iommu: Fix compilation when !CONFIG_IOMMU_DMA DaeRyong Jeong <threeearcat(a)gmail.com> tty: Fix data race in tty_insert_flip_string_fixed_flag Dmitry Torokhov <dtor(a)chromium.org> HID: i2c-hid: check if device is there before really probing Jonathan Neuschäfer <j.neuschaefer(a)gmx.net> powerpc/embedded6xx/hlwd-pic: Prevent interrupts from being handled by Starlet Luc Van Oostenryck <luc.vanoostenryck(a)gmail.com> drm/radeon: fix mode_valid's return type Terry Junge <terry.junge(a)plantronics.com> HID: hid-plantronics: Re-resend Update to map button for PTT products Takashi Iwai <tiwai(a)suse.de> ALSA: usb-audio: Apply rate limit to warning messages in URB complete callback Colin Ian King <colin.king(a)canonical.com> media: smiapp: fix timeout checking in smiapp_read_nvm Yufen Yu <yuyufen(a)huawei.com> md: fix NULL dereference of mddev->pers in remove_and_add_spares() Anson Huang <Anson.Huang(a)nxp.com> regulator: pfuze100: add .is_enable() for pfuze100_swb_regulator_ops Takashi Iwai <tiwai(a)suse.de> ALSA: emu10k1: Rate-limit error messages about page errors Maya Erez <merez(a)codeaurora.org> scsi: ufs: fix exception event handling Xinming Hu <huxm(a)marvell.com> mwifiex: correct histogram data with appropriate index Mika Westerberg <mika.westerberg(a)linux.intel.com> PCI: pciehp: Request control of native hotplug only if supported Julia Lawall <Julia.Lawall(a)lip6.fr> pinctrl: at91-pio4: add missing of_node_put Christophe Leroy <christophe.leroy(a)c-s.fr> powerpc/8xx: fix invalid register expression in head_8xx.S Mathieu Malaterre <malat(a)debian.org> powerpc/powermac: Mark variable x as unused Mathieu Malaterre <malat(a)debian.org> powerpc/powermac: Add missing prototype for note_bootable_part() Mathieu Malaterre <malat(a)debian.org> powerpc/chrp/time: Make some functions static, add missing header include Mathieu Malaterre <malat(a)debian.org> powerpc/32: Add a missing include header Sven Eckelmann <sven.eckelmann(a)openmesh.com> ath: Add regulatory mapping for Bahamas Sven Eckelmann <sven.eckelmann(a)openmesh.com> ath: Add regulatory mapping for Bermuda Sven Eckelmann <sven.eckelmann(a)openmesh.com> ath: Add regulatory mapping for Serbia Sven Eckelmann <sven.eckelmann(a)openmesh.com> ath: Add regulatory mapping for Tanzania Sven Eckelmann <sven.eckelmann(a)openmesh.com> ath: Add regulatory mapping for Uganda Sven Eckelmann <sven.eckelmann(a)openmesh.com> ath: Add regulatory mapping for APL2_FCCA Sven Eckelmann <sven.eckelmann(a)openmesh.com> ath: Add regulatory mapping for APL13_WORLD Sven Eckelmann <sven.eckelmann(a)openmesh.com> ath: Add regulatory mapping for ETSI8_WORLD Sven Eckelmann <sven.eckelmann(a)openmesh.com> ath: Add regulatory mapping for FCC3_ETSIC Christoph Hellwig <hch(a)lst.de> PCI: Prevent sysfs disable of device while driver is attached Qu Wenruo <wqu(a)suse.com> btrfs: qgroup: Finish rescan when hit the last leaf of extent tree David Sterba <dsterba(a)suse.com> btrfs: add barriers to btrfs_sync_log before log_commit_wait wakeups Hans Verkuil <hans.verkuil(a)cisco.com> media: videobuf2-core: don't call memop 'finish' when queueing Eyal Reizer <eyalreizer(a)gmail.com> wlcore: sdio: check for valid platform device data before suspend Ganapathi Bhat <gbhat(a)marvell.com> mwifiex: handle race during mwifiex_usb_disconnect Vincent Palatin <vpalatin(a)chromium.org> mfd: cros_ec: Fail early if we cannot identify the EC Kai Chieh Chuang <kaichieh.chuang(a)mediatek.com> ASoC: dpcm: fix BE dai not hw_free and shutdown Jian-Hong Pan <jian-hong(a)endlessm.com> Bluetooth: btusb: Add a new Realtek 8723DE ID 2ff8:b011 Thierry Escande <thierry.escande(a)linaro.org> Bluetooth: hci_qca: Fix "Sleep inside atomic section" warning Shaul Triebitz <shaul.triebitz(a)intel.com> iwlwifi: pcie: fix race in Rx buffer allocator Kan Liang <kan.liang(a)intel.com> perf/x86/intel/uncore: Correct fixed counter index check for NHM Kan Liang <kan.liang(a)intel.com> perf/x86/intel/uncore: Correct fixed counter index check in generic code Shuah Khan (Samsung OSG) <shuah(a)kernel.org> usbip: usbip_detach: Fix memory, udev context and udev leak Chao Yu <yuchao0(a)huawei.com> f2fs: fix to don't trigger writeback during recovery Anatoly Pugachev <matorola(a)gmail.com> disable loading f2fs module on PAGE_SIZE > 4KB Leon Romanovsky <leonro(a)mellanox.com> RDMA/mad: Convert BUG_ONs to error flows Nicholas Piggin <npiggin(a)gmail.com> powerpc/64s: Fix compiler store ordering to SLB shadow area Stewart Smith <stewart(a)linux.ibm.com> hvc_opal: don't set tb_ticks_per_usec in udbg_init_opal_common() Cong Wang <xiyou.wangcong(a)gmail.com> infiniband: fix a possible use-after-free bug Jozsef Kadlecsik <kadlec(a)blackhole.kfki.hu> netfilter: ipset: List timing out entries with "timeout 1" instead of zero Alexandre Belloni <alexandre.belloni(a)bootlin.com> rtc: ensure rtc_set_alarm fails when alarms are not supported Mathieu Malaterre <malat(a)debian.org> mm/slub.c: add __printf verification to slab_err() Chintan Pandya <cpandya(a)codeaurora.org> mm: vmalloc: avoid racy handling of debugobjects in vunmap Scott Mayhew <smayhew(a)redhat.com> nfsd: fix potential use-after-free in nfsd4_decode_getdeviceinfo Zhouyang Jia <jiazhouyang09(a)gmail.com> ALSA: fm801: add error handling for snd_ctl_add Zhouyang Jia <jiazhouyang09(a)gmail.com> ALSA: emu10k1: add error handling for snd_ctl_add Juergen Gross <jgross(a)suse.com> xen/netfront: raise max number of slots in xennet_get_responses() Steven Rostedt (VMware) <rostedt(a)goodmis.org> tracing: Quiet gcc warning about maybe unused link variable Artem Savkov <asavkov(a)redhat.com> tracing/kprobes: Fix trace_probe flags on enable_trace_kprobe() failure Steven Rostedt (VMware) <rostedt(a)goodmis.org> tracing: Fix possible double free in event_enable_trigger_func() Steven Rostedt (VMware) <rostedt(a)goodmis.org> tracing: Fix double free of event_trigger_data KT Liao <kt.liao(a)emc.com.tw> Input: elan_i2c - add another ACPI ID for Lenovo Ideapad 330-15AST Chen-Yu Tsai <wens(a)csie.org> Input: i8042 - add Lenovo LaVie Z to the i8042 reset list Donald Shanty III <dshanty(a)protonmail.com> Input: elan_i2c - add ACPI ID for lenovo ideapad 330 Paul Burton <paul.burton(a)mips.com> MIPS: Fix off-by-one in pci_resource_to_user() ------------- Diffstat: Makefile | 4 +- arch/microblaze/boot/Makefile | 10 +++-- arch/mips/include/asm/pci.h | 2 +- arch/powerpc/kernel/head_8xx.S | 2 +- arch/powerpc/kernel/pci_32.c | 1 + arch/powerpc/mm/slb.c | 8 ++-- arch/powerpc/platforms/chrp/time.c | 6 ++- arch/powerpc/platforms/embedded6xx/hlwd-pic.c | 5 +++ arch/powerpc/platforms/powermac/bootx_init.c | 4 +- arch/powerpc/platforms/powermac/setup.c | 1 + arch/s390/include/asm/cpu_mf.h | 6 ++- arch/x86/kernel/cpu/perf_event_intel_uncore.c | 2 +- .../x86/kernel/cpu/perf_event_intel_uncore_nhmex.c | 2 +- arch/x86/kvm/vmx.c | 7 ++-- crypto/authenc.c | 1 + crypto/authencesn.c | 1 + drivers/acpi/pci_root.c | 4 +- drivers/ata/libata-eh.c | 12 ++++-- drivers/bluetooth/btusb.c | 3 ++ drivers/bluetooth/hci_qca.c | 2 +- drivers/char/random.c | 10 ++++- drivers/crypto/padlock-aes.c | 8 +++- drivers/dma/pxa_dma.c | 2 +- drivers/gpu/drm/drm_atomic.c | 4 +- drivers/gpu/drm/gma500/psb_intel_drv.h | 2 +- drivers/gpu/drm/gma500/psb_intel_lvds.c | 2 +- drivers/gpu/drm/radeon/radeon_connectors.c | 10 ++--- drivers/hid/hid-plantronics.c | 6 ++- drivers/hid/i2c-hid/i2c-hid.c | 8 ++++ drivers/infiniband/core/mad.c | 11 +++-- drivers/infiniband/core/ucma.c | 6 ++- drivers/input/mouse/elan_i2c_core.c | 2 + drivers/input/serio/i8042-x86ia64io.h | 7 ++++ drivers/md/md.c | 3 ++ drivers/media/common/siano/smsendian.c | 14 +++---- drivers/media/i2c/smiapp/smiapp-core.c | 11 +++-- drivers/media/pci/saa7164/saa7164-fw.c | 3 +- drivers/media/platform/omap3isp/isp.c | 7 ++-- drivers/media/platform/rcar_jpu.c | 4 +- drivers/media/radio/si470x/radio-si470x-i2c.c | 6 +-- drivers/media/v4l2-core/videobuf2-core.c | 9 ++-- drivers/memory/tegra/mc.c | 22 +++------- drivers/memory/tegra/mc.h | 9 ++++ drivers/memory/tegra/tegra114.c | 2 + drivers/memory/tegra/tegra124.c | 6 +++ drivers/memory/tegra/tegra210.c | 3 ++ drivers/memory/tegra/tegra30.c | 2 + drivers/mfd/cros_ec.c | 6 ++- drivers/mtd/nand/fsl_ifc_nand.c | 17 ++++---- drivers/net/can/usb/ems_usb.c | 1 + drivers/net/ethernet/amd/xgbe/xgbe-mdio.c | 4 +- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 +- drivers/net/usb/lan78xx.c | 2 + drivers/net/wireless/ath/regd.h | 5 +++ drivers/net/wireless/ath/regd_common.h | 13 ++++++ drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c | 1 + drivers/net/wireless/iwlwifi/pcie/rx.c | 2 + drivers/net/wireless/mwifiex/usb.c | 3 ++ drivers/net/wireless/mwifiex/util.c | 8 ++-- drivers/net/wireless/rsi/rsi_91x_sdio.c | 2 - drivers/net/wireless/ti/wlcore/sdio.c | 5 +++ drivers/net/xen-netfront.c | 10 ++++- drivers/pci/pci-sysfs.c | 15 ++++--- drivers/pinctrl/pinctrl-at91-pio4.c | 4 +- drivers/regulator/pfuze100-regulator.c | 1 + drivers/rtc/interface.c | 5 +++ drivers/scsi/3w-9xxx.c | 5 +++ drivers/scsi/3w-xxxx.c | 3 ++ drivers/scsi/megaraid.c | 3 ++ drivers/scsi/megaraid/megaraid_sas_fusion.c | 3 ++ drivers/scsi/scsi_dh.c | 5 ++- drivers/scsi/sg.c | 1 + drivers/scsi/ufs/ufshcd.c | 2 + drivers/thermal/samsung/exynos_tmu.c | 1 + drivers/tty/hvc/hvc_opal.c | 1 - drivers/tty/pty.c | 3 ++ drivers/usb/core/hub.c | 4 ++ drivers/virtio/virtio_balloon.c | 2 + fs/btrfs/qgroup.c | 19 +++++++++ fs/btrfs/tree-log.c | 10 ++++- fs/ext4/balloc.c | 3 ++ fs/ext4/ialloc.c | 3 ++ fs/ext4/inline.c | 19 +++++---- fs/ext4/inode.c | 16 ++++---- fs/f2fs/segment.c | 3 ++ fs/f2fs/super.c | 6 +++ fs/nfsd/nfs4xdr.c | 2 + fs/squashfs/block.c | 2 + fs/squashfs/cache.c | 3 ++ fs/squashfs/file.c | 8 +++- fs/squashfs/fragment.c | 17 ++++---- fs/squashfs/squashfs_fs.h | 6 +++ fs/squashfs/squashfs_fs_sb.h | 1 + fs/squashfs/super.c | 5 ++- include/drm/drm_dp_helper.h | 1 + include/linux/dma-iommu.h | 1 + include/linux/mmc/sdio_ids.h | 1 + include/linux/netfilter/ipset/ip_set_timeout.h | 10 ++++- include/net/tcp.h | 2 +- include/soc/tegra/mc.h | 2 + kernel/auditfilter.c | 2 +- kernel/auditsc.c | 2 + kernel/bpf/verifier.c | 4 +- kernel/trace/trace_events_trigger.c | 18 +++++--- kernel/trace/trace_kprobe.c | 15 ++++++- mm/slub.c | 2 +- mm/vmalloc.c | 3 +- net/dsa/slave.c | 6 +++ net/ipv4/fib_frontend.c | 4 +- net/ipv4/inet_fragment.c | 10 ++--- net/ipv4/ipconfig.c | 13 ++++++ net/ipv4/tcp_dctcp.c | 4 +- net/ipv4/tcp_input.c | 48 +++++++++++----------- net/netlink/af_netlink.c | 7 ++++ net/socket.c | 2 + sound/pci/emu10k1/emupcm.c | 4 +- sound/pci/emu10k1/memory.c | 6 +-- sound/pci/fm801.c | 16 ++++++-- sound/pci/hda/patch_ca0132.c | 8 +++- sound/soc/pxa/brownstone.c | 1 + sound/soc/pxa/mioa701_wm9713.c | 1 + sound/soc/pxa/mmp-pcm.c | 1 + sound/soc/pxa/mmp-sspa.c | 1 + sound/soc/pxa/palm27x.c | 1 + sound/soc/pxa/pxa-ssp.c | 1 + sound/soc/pxa/pxa2xx-ac97.c | 1 + sound/soc/pxa/pxa2xx-pcm.c | 1 + sound/soc/soc-pcm.c | 6 ++- sound/usb/pcm.c | 2 +- tools/usb/usbip/src/usbip_detach.c | 9 ++-- 130 files changed, 532 insertions(+), 208 deletions(-)

5 years, 7 months

10
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[PATCH 0/4] tty: Hold write ldisc sem in tty_reopen()

by Dmitry Safonov

Two fixes for potential and real issues. Looks worth to have in stables as we've hit it on v4.9 stable. And for linux-next - adding lockdep asserts for line discipline changing code, verifying that write ldisc sem will be held forthwith. I couldn't verify that holding write lock fixes the issue as we've hit it only once and I've failed in reproducing it. But searching in lkml, Cc'ing here people who probably had the same crash (and in hope someone of them could give tested-by): Cc: Daniel Axtens <dja(a)axtens.net> Cc: Dmitry Vyukov <dvyukov(a)google.com> Cc: Michael Neuling <mikey(a)neuling.org> Cc: Mikulas Patocka <mpatocka(a)redhat.com> Cc: Pasi Kärkkäinen <pasik(a)iki.fi> Cc: Peter Hurley <peter(a)hurleysoftware.com> Cc: Sergey Senozhatsky <sergey.senozhatsky.work(a)gmail.com> Cc: Tan Xiaojun <tanxiaojun(a)huawei.com> (please, ignore if I Cc'ed you mistakenly) Dmitry Safonov (4): tty: Drop tty->count on tty_reopen() failure tty: Hold tty_ldisc_lock() during tty_reopen() tty: Lock tty pair in tty_init_dev() tty/lockdep: Add ldisc_sem asserts drivers/tty/tty_io.c | 21 +++++++++++++++------ drivers/tty/tty_ldisc.c | 12 ++++++++---- include/linux/tty.h | 4 ++++ 3 files changed, 27 insertions(+), 10 deletions(-) -- 2.13.6

5 years, 7 months

9
23
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[PATCH v5] spi: spi-mem: Adjust op len based on message/transfer size limitations

by Chuanhua Han

We need that to adjust the len of the 2nd transfer (called data in spi-mem) if it's too long to fit in a SPI message or SPI transfer. Fixes: c36ff266dc82 ("spi: Extend the core to ease integration of SPI memory controllers") Cc: <stable(a)vger.kernel.org> Signed-off-by: Chuanhua Han <chuanhua.han(a)nxp.com> Reviewed-by: Boris Brezillon <boris.brezillon(a)bootlin.com> --- Changes in v5: -Add the validation check after the op->data.nbytes assignment -Assign the "len" variable after defining it -Remove the brackets on both sides of "opt-> data.nbytes" Changes in v4: -Rename variable name "opcode_addr_dummy_sum" to "len" -The comparison of "spi_max_message_size(mem->spi)" and "len" was removed -Adjust their order when comparing the sizes of "spi_max_message_size(mem->spi)" and "len" -Changing the "unsigned long" type in the code to "size_t" Changes in v3: -Rename variable name "val" to "opcode_addr_dummy_sum" -Place the legitimacy of the transfer size(i.e., "spi_max_message_size(mem->spi)" and "opcode_addr_dummy_sum") into "if (! ctlr - > mem_ops | |! ctlr-> mem_ops->exec_op) {" structure and add "spi_max_transfer_size(mem->spi) and opcode_addr_dummy_sum" -Adjust the formatting alignment of the code -"(unsigned long)op->data.nbytes" was modified to "(unsigned long)(op->data.nbytes)" Changes in v2: -Place the adjusted transfer bytes code in spi_mem_adjust_op_size() and check spi_max_message_size(mem->spi) value before subtracting opcode, addr and dummy bytes -Change the code from fsl-espi controller to generic code(The adjustment of spi transmission length was originally modified in the "drivers/spi/spi-fsl-espi.c" file, and now the adjustment of transfer length is made in the "drivers/spi/spi-mem.c" file) drivers/spi/spi-mem.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/spi/spi-mem.c b/drivers/spi/spi-mem.c index e43842c..eb72dba 100644 --- a/drivers/spi/spi-mem.c +++ b/drivers/spi/spi-mem.c @@ -346,10 +346,25 @@ EXPORT_SYMBOL_GPL(spi_mem_get_name); int spi_mem_adjust_op_size(struct spi_mem *mem, struct spi_mem_op *op) { struct spi_controller *ctlr = mem->spi->controller; + size_t len; + + len = sizeof(op->cmd.opcode) + op->addr.nbytes + op->dummy.nbytes; if (ctlr->mem_ops && ctlr->mem_ops->adjust_op_size) return ctlr->mem_ops->adjust_op_size(mem, op); + if (!ctlr->mem_ops || !ctlr->mem_ops->exec_op) { + if (len > spi_max_transfer_size(mem->spi)) + return -EINVAL; + + op->data.nbytes = min3((size_t)op->data.nbytes, + spi_max_transfer_size(mem->spi), + spi_max_message_size(mem->spi) - + len); + if (!op->data.nbytes) + return -EINVAL; + } + return 0; } EXPORT_SYMBOL_GPL(spi_mem_adjust_op_size); -- 2.7.4

5 years, 7 months

3
5
0 0

[PATCH 4.4 00/43] 4.4.148-stable review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 4.4.148 release. There are 43 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know. Responses should be made by Thu Aug 16 17:14:59 UTC 2018. Anything received after that time might be too late. The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.4.148-rc… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.4.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 4.4.148-rc1 Guenter Roeck <linux(a)roeck-us.net> x86/speculation/l1tf: Fix up CPU feature flags Andi Kleen <ak(a)linux.intel.com> x86/mm/kmmio: Make the tracer robust against L1TF Andi Kleen <ak(a)linux.intel.com> x86/mm/pat: Make set_memory_np() L1TF safe Andi Kleen <ak(a)linux.intel.com> x86/speculation/l1tf: Make pmd/pud_mknotpresent() invert Andi Kleen <ak(a)linux.intel.com> x86/speculation/l1tf: Invert all not present mappings Michal Hocko <mhocko(a)suse.cz> x86/speculation/l1tf: Fix up pte->pfn conversion for PAE Vlastimil Babka <vbabka(a)suse.cz> x86/speculation/l1tf: Protect PAE swap entries against L1TF Konrad Rzeszutek Wilk <konrad.wilk(a)oracle.com> x86/cpufeatures: Add detection of L1D cache flush support. Vlastimil Babka <vbabka(a)suse.cz> x86/speculation/l1tf: Extend 64bit swap file size limit Konrad Rzeszutek Wilk <konrad.wilk(a)oracle.com> x86/bugs: Move the l1tf function and define pr_fmt properly Andi Kleen <ak(a)linux.intel.com> x86/speculation/l1tf: Limit swap file size to MAX_PA/2 Andi Kleen <ak(a)linux.intel.com> x86/speculation/l1tf: Disallow non privileged high MMIO PROT_NONE mappings Dan Williams <dan.j.williams(a)intel.com> mm: fix cache mode tracking in vm_insert_mixed() Andy Lutomirski <luto(a)kernel.org> mm: Add vm_insert_pfn_prot() Andi Kleen <ak(a)linux.intel.com> x86/speculation/l1tf: Add sysfs reporting for l1tf Andi Kleen <ak(a)linux.intel.com> x86/speculation/l1tf: Make sure the first page is always reserved Andi Kleen <ak(a)linux.intel.com> x86/speculation/l1tf: Protect PROT_NONE PTEs against speculation Linus Torvalds <torvalds(a)linux-foundation.org> x86/speculation/l1tf: Protect swap entries against L1TF Linus Torvalds <torvalds(a)linux-foundation.org> x86/speculation/l1tf: Change order of offset/type in swap entry Naoya Horiguchi <n-horiguchi(a)ah.jp.nec.com> mm: x86: move _PAGE_SWP_SOFT_DIRTY from bit 7 to bit 1 Dave Hansen <dave.hansen(a)linux.intel.com> x86/mm: Fix swap entry comment and macro Dave Hansen <dave.hansen(a)linux.intel.com> x86/mm: Move swap offset/type up in PTE to work around erratum Andi Kleen <ak(a)linux.intel.com> x86/speculation/l1tf: Increase 32bit PAE __PHYSICAL_PAGE_SHIFT Nick Desaulniers <ndesaulniers(a)google.com> x86/irqflags: Provide a declaration for native_save_fl Masami Hiramatsu <mhiramat(a)kernel.org> kprobes/x86: Fix %p uses in error messages Jiri Kosina <jkosina(a)suse.cz> x86/speculation: Protect against userspace-userspace spectreRSB Peter Zijlstra <peterz(a)infradead.org> x86/paravirt: Fix spectre-v2 mitigations for paravirt guests Oleksij Rempel <o.rempel(a)pengutronix.de> ARM: dts: imx6sx: fix irq for pcie bridge Michael Mera <dev(a)michaelmera.com> IB/ocrdma: fix out of bounds access to local buffer Jack Morgenstein <jackm(a)dev.mellanox.co.il> IB/mlx4: Mark user MR as writable if actual virtual memory is writable Jack Morgenstein <jackm(a)dev.mellanox.co.il> IB/core: Make testing MR flags for writability a static inline function Al Viro <viro(a)zeniv.linux.org.uk> fix __legitimize_mnt()/mntput() race Al Viro <viro(a)zeniv.linux.org.uk> fix mntput/mntput race Al Viro <viro(a)zeniv.linux.org.uk> root dentries need RCU-delayed freeing Bart Van Assche <bart.vanassche(a)wdc.com> scsi: sr: Avoid that opening a CD-ROM hangs with runtime power management enabled Hans de Goede <hdegoede(a)redhat.com> ACPI / LPSS: Add missing prv_offset setting for byt/cht PWM devices Juergen Gross <jgross(a)suse.com> xen/netfront: don't cache skb_shinfo() John David Anglin <dave.anglin(a)bell.net> parisc: Define mb() and add memory barriers to assembler unlock sequences Helge Deller <deller(a)gmx.de> parisc: Enable CONFIG_MLONGCALLS by default Kees Cook <keescook(a)chromium.org> fork: unconditionally clear stack on fork Thomas Egerer <hakke_007(a)gmx.de> ipv4+ipv6: Make INET*_ESP select CRYPTO_ECHAINIV Tadeusz Struk <tadeusz.struk(a)intel.com> tpm: fix race condition in tpm_common_write() Theodore Ts'o <tytso(a)mit.edu> ext4: fix check to prevent initializing reserved inodes ------------- Diffstat: Makefile | 4 +- arch/arm/boot/dts/imx6sx.dtsi | 2 +- arch/parisc/Kconfig | 2 +- arch/parisc/include/asm/barrier.h | 32 +++++++++++ arch/parisc/kernel/entry.S | 2 + arch/parisc/kernel/pacache.S | 1 + arch/parisc/kernel/syscall.S | 4 ++ arch/x86/include/asm/cpufeatures.h | 10 ++-- arch/x86/include/asm/irqflags.h | 2 + arch/x86/include/asm/page_32_types.h | 9 +++- arch/x86/include/asm/pgtable-2level.h | 17 ++++++ arch/x86/include/asm/pgtable-3level.h | 37 ++++++++++++- arch/x86/include/asm/pgtable-invert.h | 32 +++++++++++ arch/x86/include/asm/pgtable.h | 84 +++++++++++++++++++++++------ arch/x86/include/asm/pgtable_64.h | 54 +++++++++++++++---- arch/x86/include/asm/pgtable_types.h | 10 ++-- arch/x86/include/asm/processor.h | 5 ++ arch/x86/kernel/cpu/bugs.c | 81 +++++++++++++++++----------- arch/x86/kernel/cpu/common.c | 20 +++++++ arch/x86/kernel/kprobes/core.c | 4 +- arch/x86/kernel/paravirt.c | 14 +++-- arch/x86/kernel/setup.c | 6 +++ arch/x86/mm/init.c | 23 ++++++++ arch/x86/mm/kmmio.c | 25 +++++---- arch/x86/mm/mmap.c | 21 ++++++++ arch/x86/mm/pageattr.c | 8 +-- drivers/acpi/acpi_lpss.c | 2 + drivers/base/cpu.c | 8 +++ drivers/char/tpm/tpm-dev.c | 43 +++++++-------- drivers/infiniband/core/umem.c | 11 +--- drivers/infiniband/hw/mlx4/mr.c | 50 ++++++++++++++--- drivers/infiniband/hw/ocrdma/ocrdma_stats.c | 2 +- drivers/net/xen-netfront.c | 8 +-- drivers/scsi/sr.c | 29 +++++++--- fs/dcache.c | 6 ++- fs/ext4/ialloc.c | 5 +- fs/ext4/super.c | 8 +-- fs/namespace.c | 28 +++++++++- include/asm-generic/pgtable.h | 12 +++++ include/linux/cpu.h | 2 + include/linux/mm.h | 2 + include/linux/swapfile.h | 2 + include/linux/thread_info.h | 6 +-- include/rdma/ib_verbs.h | 14 +++++ mm/memory.c | 62 +++++++++++++++++---- mm/mprotect.c | 49 +++++++++++++++++ mm/swapfile.c | 46 ++++++++++------ net/ipv4/Kconfig | 1 + net/ipv6/Kconfig | 1 + 49 files changed, 714 insertions(+), 192 deletions(-)

5 years, 7 months

4
50
0 0

[PATCH] kthread, tracing: Don't expose half-written comm when creating kthreads

by Snild Dolkow

Trivial backport of commit 3e536e222f293053; newer kernels have simply moved the vararg macros. Testing: 3.18 and 4.4 booted OK in qemu. >8------------------------------------------------------8< [backport of commit 3e536e222f293053 from mainline] There is a window for racing when printing directly to task->comm, allowing other threads to see a non-terminated string. The vsnprintf function fills the buffer, counts the truncated chars, then finally writes the \0 at the end. creator other vsnprintf: fill (not terminated) count the rest trace_sched_waking(p): ... memcpy(comm, p->comm, TASK_COMM_LEN) write \0 The consequences depend on how 'other' uses the string. In our case, it was copied into the tracing system's saved cmdlines, a buffer of adjacent TASK_COMM_LEN-byte buffers (note the 'n' where 0 should be): crash-arm64> x/1024s savedcmd->saved_cmdlines | grep 'evenk' 0xffffffd5b3818640: "irq/497-pwr_evenkworker/u16:12" ...and a strcpy out of there would cause stack corruption: [224761.522292] Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: ffffff9bf9783c78 crash-arm64> kbt | grep 'comm\|trace_print_context' #6 0xffffff9bf9783c78 in trace_print_context+0x18c(+396) comm (char [16]) = "irq/497-pwr_even" crash-arm64> rd 0xffffffd4d0e17d14 8 ffffffd4d0e17d14: 2f71726900000000 5f7277702d373934 ....irq/497-pwr_ ffffffd4d0e17d24: 726f776b6e657665 3a3631752f72656b evenkworker/u16: ffffffd4d0e17d34: f9780248ff003231 cede60e0ffffff9b 12..H.x......`.. ffffffd4d0e17d44: cede60c8ffffffd4 00000fffffffffd4 .....`.......... The workaround in e09e28671 (use strlcpy in __trace_find_cmdline) was likely needed because of this same bug. Solved by vsnprintf:ing to a local buffer, then using set_task_comm(). This way, there won't be a window where comm is not terminated. Cc: stable(a)vger.kernel.org Fixes: bc0c38d139ec7 ("ftrace: latency tracer infrastructure") Reviewed-by: Steven Rostedt (VMware) <rostedt(a)goodmis.org> [backported to 3.18 / 4.4 by Snild] Signed-off-by: Snild Dolkow <snild(a)sony.com> --- kernel/kthread.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/kernel/kthread.c b/kernel/kthread.c index 850b255..ac6849e 100644 --- a/kernel/kthread.c +++ b/kernel/kthread.c @@ -313,10 +313,16 @@ struct task_struct *kthread_create_on_node(int (*threadfn)(void *data), task = create->result; if (!IS_ERR(task)) { static const struct sched_param param = { .sched_priority = 0 }; + char name[TASK_COMM_LEN]; va_list args; va_start(args, namefmt); - vsnprintf(task->comm, sizeof(task->comm), namefmt, args); + /* + * task is already visible to other tasks, so updating + * COMM must be protected. + */ + vsnprintf(name, sizeof(name), namefmt, args); + set_task_comm(task, name); va_end(args); /* * root may have changed our (kthreadd's) priority or CPU mask. -- 2.7.4

5 years, 7 months

2
1
0 0

[PATCH AUTOSEL 4.18 067/113] powerpc: Fix size calculation using resource_size()

by Sasha Levin

From: Dan Carpenter <dan.carpenter(a)oracle.com> [ Upstream commit c42d3be0c06f0c1c416054022aa535c08a1f9b39 ] The problem is the the calculation should be "end - start + 1" but the plus one is missing in this calculation. Fixes: 8626816e905e ("powerpc: add support for MPIC message register API") Signed-off-by: Dan Carpenter <dan.carpenter(a)oracle.com> Reviewed-by: Tyrel Datwyler <tyreld(a)linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe(a)ellerman.id.au> Signed-off-by: Sasha Levin <alexander.levin(a)microsoft.com> --- arch/powerpc/sysdev/mpic_msgr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/sysdev/mpic_msgr.c b/arch/powerpc/sysdev/mpic_msgr.c index eb69a5186243..280e964e1aa8 100644 --- a/arch/powerpc/sysdev/mpic_msgr.c +++ b/arch/powerpc/sysdev/mpic_msgr.c @@ -196,7 +196,7 @@ static int mpic_msgr_probe(struct platform_device *dev) /* IO map the message register block. */ of_address_to_resource(np, 0, &rsrc); - msgr_block_addr = ioremap(rsrc.start, rsrc.end - rsrc.start); + msgr_block_addr = ioremap(rsrc.start, resource_size(&rsrc)); if (!msgr_block_addr) { dev_err(&dev->dev, "Failed to iomap MPIC message registers"); return -EFAULT; -- 2.17.1

5 years, 7 months

4
56
0 0

[PATCH 4.9 00/66] 4.9.95-stable review

by Greg Kroah-Hartman

This is the start of the stable review cycle for the 4.9.95 release. There are 66 patches in this series, all will be posted as a response to this one. If anyone has any issues with these being applied, please let me know. Responses should be made by Thu Apr 19 15:56:27 UTC 2018. Anything received after that time might be too late. The whole patch series can be found in one patch at: https://www.kernel.org/pub/linux/kernel/v4.x/stable-review/patch-4.9.95-rc1… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-4.9.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 4.9.95-rc1 Phil Elwell <phil(a)raspberrypi.org> lan78xx: Correctly indicate invalid OTP Stefan Hajnoczi <stefanha(a)redhat.com> vhost: fix vhost_vq_access_ok() log check Tejaswi Tanikella <tejaswit(a)codeaurora.org> slip: Check if rstate is initialized before uncompressing Ka-Cheong Poon <ka-cheong.poon(a)oracle.com> rds: MP-RDS may use an invalid c_path Bassem Boubaker <bassem.boubaker(a)actia.fr> cdc_ether: flag the Cinterion AHS8 modem by gemalto as WWAN Marek Szyprowski <m.szyprowski(a)samsung.com> hwmon: (ina2xx) Fix access to uninitialized mutex Sudhir Sreedharan <ssreedharan(a)mvista.com> rtl8187: Fix NULL pointer dereference in priv->conf_mutex Szymon Janc <szymon.janc(a)codecoup.pl> Bluetooth: Fix connection if directed advertising and privacy is used Al Viro <viro(a)zeniv.linux.org.uk> getname_kernel() needs to make sure that ->name != ->iname in long case Vasily Gorbik <gor(a)linux.ibm.com> s390/ipl: ensure loadparm valid flag is set Julian Wiedmann <jwi(a)linux.vnet.ibm.com> s390/qdio: don't merge ERROR output buffers Julian Wiedmann <jwi(a)linux.vnet.ibm.com> s390/qdio: don't retry EQBS after CCQ 96 Dan Williams <dan.j.williams(a)intel.com> nfit: fix region registration vs block-data-window ranges Tetsuo Handa <penguin-kernel(a)I-love.SAKURA.ne.jp> block/loop: fix deadlock after loop_set_status Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Revert "perf tests: Decompress kernel module before objdump" Eric Biggers <ebiggers(a)google.com> sunrpc: remove incorrect HMAC request initialization Mark Rutland <mark.rutland(a)arm.com> arm64: Kill PSCI_GET_VERSION as a variant-2 workaround Mark Rutland <mark.rutland(a)arm.com> arm64: Add ARM_SMCCC_ARCH_WORKAROUND_1 BP hardening support Mark Rutland <mark.rutland(a)arm.com> arm/arm64: smccc: Implement SMCCC v1.1 inline primitive Mark Rutland <mark.rutland(a)arm.com> arm/arm64: smccc: Make function identifiers an unsigned quantity Mark Rutland <mark.rutland(a)arm.com> firmware/psci: Expose SMCCC version through psci_ops Mark Rutland <mark.rutland(a)arm.com> firmware/psci: Expose PSCI conduit Mark Rutland <mark.rutland(a)arm.com> arm64: KVM: Add SMCCC_ARCH_WORKAROUND_1 fast handling Mark Rutland <mark.rutland(a)arm.com> arm64: KVM: Report SMCCC_ARCH_WORKAROUND_1 BP hardening support Mark Rutland <mark.rutland(a)arm.com> arm/arm64: KVM: Turn kvm_psci_version into a static inline Mark Rutland <mark.rutland(a)arm.com> arm64: KVM: Make PSCI_VERSION a fast path Mark Rutland <mark.rutland(a)arm.com> arm/arm64: KVM: Advertise SMCCC v1.1 Mark Rutland <mark.rutland(a)arm.com> arm/arm64: KVM: Implement PSCI 1.0 support Mark Rutland <mark.rutland(a)arm.com> arm/arm64: KVM: Add smccc accessors to PSCI code Mark Rutland <mark.rutland(a)arm.com> arm/arm64: KVM: Add PSCI_VERSION helper Mark Rutland <mark.rutland(a)arm.com> arm/arm64: KVM: Consolidate the PSCI include files Mark Rutland <mark.rutland(a)arm.com> arm64: KVM: Increment PC after handling an SMC trap Mark Rutland <mark.rutland(a)arm.com> arm64: Branch predictor hardening for Cavium ThunderX2 Mark Rutland <mark.rutland(a)arm.com> arm64: Implement branch predictor hardening for affected Cortex-A CPUs Mark Rutland <mark.rutland(a)arm.com> arm64: cpu_errata: Allow an erratum to be match for all revisions of a core Mark Rutland <mark.rutland(a)arm.com> arm64: cputype: Add missing MIDR values for Cortex-A72 and Cortex-A75 Mark Rutland <mark.rutland(a)arm.com> arm64: entry: Apply BP hardening for suspicious interrupts from EL0 Mark Rutland <mark.rutland(a)arm.com> arm64: entry: Apply BP hardening for high-priority synchronous exceptions Mark Rutland <mark.rutland(a)arm.com> arm64: KVM: Use per-CPU vector when BP hardening is enabled Mark Rutland <mark.rutland(a)arm.com> mm: Introduce lm_alias Mark Rutland <mark.rutland(a)arm.com> arm64: Move BP hardening to check_and_switch_context Mark Rutland <mark.rutland(a)arm.com> arm64: Add skeleton to harden the branch predictor against aliasing attacks Mark Rutland <mark.rutland(a)arm.com> arm64: Move post_ttbr_update_workaround to C code Mark Rutland <mark.rutland(a)arm.com> arm64: Factor out TTBR0_EL1 post-update workaround into a specific asm macro Mark Rutland <mark.rutland(a)arm.com> drivers/firmware: Expose psci_get_version through psci_ops structure Mark Rutland <mark.rutland(a)arm.com> arm64: cpufeature: Pass capability structure to ->enable callback Mark Rutland <mark.rutland(a)arm.com> arm64: Run enable method for errata work arounds on late CPUs Mark Rutland <mark.rutland(a)arm.com> arm64: cpufeature: __this_cpu_has_cap() shouldn't stop early Mark Rutland <mark.rutland(a)arm.com> arm64: uaccess: Mask __user pointers for __arch_{clear, copy_*}_user Mark Rutland <mark.rutland(a)arm.com> arm64: uaccess: Don't bother eliding access_ok checks in __{get, put}_user Mark Rutland <mark.rutland(a)arm.com> arm64: uaccess: Prevent speculative use of the current addr_limit Mark Rutland <mark.rutland(a)arm.com> arm64: entry: Ensure branch through syscall table is bounded under speculation Mark Rutland <mark.rutland(a)arm.com> arm64: Use pointer masking to limit uaccess speculation Mark Rutland <mark.rutland(a)arm.com> arm64: Make USER_DS an inclusive limit Mark Rutland <mark.rutland(a)arm.com> arm64: move TASK_* definitions to <asm/processor.h> Mark Rutland <mark.rutland(a)arm.com> arm64: Implement array_index_mask_nospec() Mark Rutland <mark.rutland(a)arm.com> arm64: barrier: Add CSDB macros to control data-value prediction Arnd Bergmann <arnd(a)arndb.de> radeon: hide pointless #warning when compile testing Prashant Bhole <bhole_prashant_q7(a)lab.ntt.co.jp> perf/core: Fix use-after-free in uprobe_perf_close() Adrian Hunter <adrian.hunter(a)intel.com> perf intel-pt: Fix timestamp following overflow Adrian Hunter <adrian.hunter(a)intel.com> perf intel-pt: Fix error recovery from missing TIP packet Adrian Hunter <adrian.hunter(a)intel.com> perf intel-pt: Fix sync_switch Adrian Hunter <adrian.hunter(a)intel.com> perf intel-pt: Fix overlap detection to identify consecutive buffers correctly Dexuan Cui <decui(a)microsoft.com> Drivers: hv: vmbus: do not mark HV_PCIE as perf_device Helge Deller <deller(a)gmx.de> parisc: Fix out of array access in match_pci_device() Mauro Carvalho Chehab <mchehab(a)kernel.org> media: v4l2-compat-ioctl32: don't oops on overlay ------------- Diffstat: Makefile | 4 +- arch/arm/include/asm/kvm_host.h | 6 + arch/arm/include/asm/kvm_mmu.h | 10 + arch/arm/include/asm/kvm_psci.h | 27 - arch/arm/kvm/arm.c | 11 +- arch/arm/kvm/handle_exit.c | 4 +- arch/arm/kvm/psci.c | 143 +- arch/arm64/Kconfig | 17 + arch/arm64/crypto/sha256-core.S | 2061 ++++++++++++++++++++ arch/arm64/crypto/sha512-core.S | 1085 +++++++++++ arch/arm64/include/asm/assembler.h | 19 + arch/arm64/include/asm/barrier.h | 23 + arch/arm64/include/asm/cpucaps.h | 3 +- arch/arm64/include/asm/cputype.h | 6 + arch/arm64/include/asm/kvm_host.h | 5 + arch/arm64/include/asm/kvm_mmu.h | 38 + arch/arm64/include/asm/kvm_psci.h | 27 - arch/arm64/include/asm/memory.h | 15 - arch/arm64/include/asm/mmu.h | 39 + arch/arm64/include/asm/processor.h | 24 + arch/arm64/include/asm/sysreg.h | 2 + arch/arm64/include/asm/uaccess.h | 153 +- arch/arm64/kernel/Makefile | 4 + arch/arm64/kernel/arm64ksyms.c | 4 +- arch/arm64/kernel/bpi.S | 75 + arch/arm64/kernel/cpu_errata.c | 189 +- arch/arm64/kernel/cpufeature.c | 10 +- arch/arm64/kernel/entry.S | 25 +- arch/arm64/kvm/handle_exit.c | 16 +- arch/arm64/kvm/hyp/hyp-entry.S | 20 +- arch/arm64/kvm/hyp/switch.c | 5 +- arch/arm64/lib/clear_user.S | 6 +- arch/arm64/lib/copy_in_user.S | 4 +- arch/arm64/mm/context.c | 12 + arch/arm64/mm/fault.c | 34 +- arch/arm64/mm/proc.S | 7 +- arch/parisc/kernel/drivers.c | 4 + arch/s390/kernel/ipl.c | 1 + drivers/acpi/nfit/core.c | 22 +- drivers/block/loop.c | 12 +- drivers/firmware/psci.c | 57 +- drivers/gpu/drm/radeon/radeon_object.c | 3 +- drivers/hv/channel_mgmt.c | 2 +- drivers/hwmon/ina2xx.c | 3 +- drivers/media/v4l2-core/v4l2-compat-ioctl32.c | 4 +- drivers/net/slip/slhc.c | 5 + drivers/net/usb/cdc_ether.c | 6 + drivers/net/usb/lan78xx.c | 3 +- drivers/net/wireless/realtek/rtl818x/rtl8187/dev.c | 2 +- drivers/s390/cio/qdio_main.c | 42 +- drivers/vhost/vhost.c | 8 +- fs/namei.c | 3 +- include/kvm/arm_psci.h | 51 + include/linux/arm-smccc.h | 165 +- include/linux/mm.h | 4 + include/linux/psci.h | 14 + include/net/bluetooth/hci_core.h | 2 +- include/net/slhc_vj.h | 1 + include/uapi/linux/psci.h | 3 + kernel/events/core.c | 6 + net/bluetooth/hci_conn.c | 29 +- net/bluetooth/hci_event.c | 15 +- net/bluetooth/l2cap_core.c | 2 +- net/rds/send.c | 15 +- net/sunrpc/auth_gss/gss_krb5_crypto.c | 3 - tools/perf/tests/code-reading.c | 20 +- .../perf/util/intel-pt-decoder/intel-pt-decoder.c | 64 +- .../perf/util/intel-pt-decoder/intel-pt-decoder.h | 2 +- tools/perf/util/intel-pt.c | 37 +- 69 files changed, 4423 insertions(+), 320 deletions(-)

5 years, 7 months

7
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0 0

FAILED: patch "[PATCH] btrfs: use correct compare function of dirty_metadata_bytes" 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 d814a49198eafa6163698bdd93961302f3a877a4 Mon Sep 17 00:00:00 2001 From: Ethan Lien <ethanlien(a)synology.com> Date: Mon, 2 Jul 2018 15:44:58 +0800 Subject: [PATCH] btrfs: use correct compare function of dirty_metadata_bytes We use customized, nodesize batch value to update dirty_metadata_bytes. We should also use batch version of compare function or we will easily goto fast path and get false result from percpu_counter_compare(). Fixes: e2d845211eda ("Btrfs: use percpu counter for dirty metadata count") CC: stable(a)vger.kernel.org # 4.4+ Signed-off-by: Ethan Lien <ethanlien(a)synology.com> Reviewed-by: Nikolay Borisov <nborisov(a)suse.com> Signed-off-by: David Sterba <dsterba(a)suse.com> diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 6023eed3e805..e3858b2fe014 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -959,8 +959,9 @@ static int btree_writepages(struct address_space *mapping, fs_info = BTRFS_I(mapping->host)->root->fs_info; /* this is a bit racy, but that's ok */ - ret = percpu_counter_compare(&fs_info->dirty_metadata_bytes, - BTRFS_DIRTY_METADATA_THRESH); + ret = __percpu_counter_compare(&fs_info->dirty_metadata_bytes, + BTRFS_DIRTY_METADATA_THRESH, + fs_info->dirty_metadata_batch); if (ret < 0) return 0; } @@ -4134,8 +4135,9 @@ static void __btrfs_btree_balance_dirty(struct btrfs_fs_info *fs_info, if (flush_delayed) btrfs_balance_delayed_items(fs_info); - ret = percpu_counter_compare(&fs_info->dirty_metadata_bytes, - BTRFS_DIRTY_METADATA_THRESH); + ret = __percpu_counter_compare(&fs_info->dirty_metadata_bytes, + BTRFS_DIRTY_METADATA_THRESH, + fs_info->dirty_metadata_batch); if (ret > 0) { balance_dirty_pages_ratelimited(fs_info->btree_inode->i_mapping); }

5 years, 7 months

3
2
0 0

[PATCH v6 1/2] mm: migration: fix migration of huge PMD shared pages

by Mike Kravetz

The page migration code employs try_to_unmap() to try and unmap the source page. This is accomplished by using rmap_walk to find all vmas where the page is mapped. This search stops when page mapcount is zero. For shared PMD huge pages, the page map count is always 1 no matter the number of mappings. Shared mappings are tracked via the reference count of the PMD page. Therefore, try_to_unmap stops prematurely and does not completely unmap all mappings of the source page. This problem can result is data corruption as writes to the original source page can happen after contents of the page are copied to the target page. Hence, data is lost. This problem was originally seen as DB corruption of shared global areas after a huge page was soft offlined due to ECC memory errors. DB developers noticed they could reproduce the issue by (hotplug) offlining memory used to back huge pages. A simple testcase can reproduce the problem by creating a shared PMD mapping (note that this must be at least PUD_SIZE in size and PUD_SIZE aligned (1GB on x86)), and using migrate_pages() to migrate process pages between nodes while continually writing to the huge pages being migrated. To fix, have the try_to_unmap_one routine check for huge PMD sharing by calling huge_pmd_unshare for hugetlbfs huge pages. If it is a shared mapping it will be 'unshared' which removes the page table entry and drops the reference on the PMD page. After this, flush caches and TLB. mmu notifiers are called before locking page tables, but we can not be sure of PMD sharing until page tables are locked. Therefore, check for the possibility of PMD sharing before locking so that notifiers can prepare for the worst possible case. Fixes: 39dde65c9940 ("shared page table for hugetlb page") Cc: stable(a)vger.kernel.org Signed-off-by: Mike Kravetz <mike.kravetz(a)oracle.com> --- include/linux/hugetlb.h | 14 ++++++++++++++ mm/hugetlb.c | 40 +++++++++++++++++++++++++++++++++++++-- mm/rmap.c | 42 ++++++++++++++++++++++++++++++++++++++--- 3 files changed, 91 insertions(+), 5 deletions(-) diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index 36fa6a2a82e3..4ee95d8c8413 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -140,6 +140,8 @@ pte_t *huge_pte_alloc(struct mm_struct *mm, pte_t *huge_pte_offset(struct mm_struct *mm, unsigned long addr, unsigned long sz); int huge_pmd_unshare(struct mm_struct *mm, unsigned long *addr, pte_t *ptep); +void adjust_range_if_pmd_sharing_possible(struct vm_area_struct *vma, + unsigned long *start, unsigned long *end); struct page *follow_huge_addr(struct mm_struct *mm, unsigned long address, int write); struct page *follow_huge_pd(struct vm_area_struct *vma, @@ -170,6 +172,18 @@ static inline unsigned long hugetlb_total_pages(void) return 0; } +static inline int huge_pmd_unshare(struct mm_struct *mm, unsigned long *addr, + pte_t *ptep) +{ + return 0; +} + +static inline void adjust_range_if_pmd_sharing_possible( + struct vm_area_struct *vma, + unsigned long *start, unsigned long *end) +{ +} + #define follow_hugetlb_page(m,v,p,vs,a,b,i,w,n) ({ BUG(); 0; }) #define follow_huge_addr(mm, addr, write) ERR_PTR(-EINVAL) #define copy_hugetlb_page_range(src, dst, vma) ({ BUG(); 0; }) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 3103099f64fd..a73c5728e961 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -4548,6 +4548,9 @@ static unsigned long page_table_shareable(struct vm_area_struct *svma, return saddr; } +#define _range_in_vma(vma, start, end) \ + ((vma)->vm_start <= (start) && (end) <= (vma)->vm_end) + static bool vma_shareable(struct vm_area_struct *vma, unsigned long addr) { unsigned long base = addr & PUD_MASK; @@ -4556,12 +4559,40 @@ static bool vma_shareable(struct vm_area_struct *vma, unsigned long addr) /* * check on proper vm_flags and page table alignment */ - if (vma->vm_flags & VM_MAYSHARE && - vma->vm_start <= base && end <= vma->vm_end) + if (vma->vm_flags & VM_MAYSHARE && _range_in_vma(vma, base, end)) return true; return false; } +/* + * Determine if start,end range within vma could be mapped by shared pmd. + * If yes, adjust start and end to cover range associated with possible + * shared pmd mappings. + */ +void adjust_range_if_pmd_sharing_possible(struct vm_area_struct *vma, + unsigned long *start, unsigned long *end) +{ + unsigned long check_addr = *start; + + if (!(vma->vm_flags & VM_MAYSHARE)) + return; + + for (check_addr = *start; check_addr < *end; check_addr += PUD_SIZE) { + unsigned long a_start = check_addr & PUD_MASK; + unsigned long a_end = a_start + PUD_SIZE; + + /* + * If sharing is possible, adjust start/end if necessary. + */ + if (_range_in_vma(vma, a_start, a_end)) { + if (a_start < *start) + *start = a_start; + if (a_end > *end) + *end = a_end; + } + } +} + /* * Search for a shareable pmd page for hugetlb. In any case calls pmd_alloc() * and returns the corresponding pte. While this is not necessary for the @@ -4659,6 +4690,11 @@ int huge_pmd_unshare(struct mm_struct *mm, unsigned long *addr, pte_t *ptep) { return 0; } + +void adjust_range_if_pmd_sharing_possible(struct vm_area_struct *vma, + unsigned long *start, unsigned long *end) +{ +} #define want_pmd_share() (0) #endif /* CONFIG_ARCH_WANT_HUGE_PMD_SHARE */ diff --git a/mm/rmap.c b/mm/rmap.c index eb477809a5c0..1e79fac3186b 100644 --- a/mm/rmap.c +++ b/mm/rmap.c @@ -1362,11 +1362,21 @@ static bool try_to_unmap_one(struct page *page, struct vm_area_struct *vma, } /* - * We have to assume the worse case ie pmd for invalidation. Note that - * the page can not be free in this function as call of try_to_unmap() - * must hold a reference on the page. + * For THP, we have to assume the worse case ie pmd for invalidation. + * For hugetlb, it could be much worse if we need to do pud + * invalidation in the case of pmd sharing. + * + * Note that the page can not be free in this function as call of + * try_to_unmap() must hold a reference on the page. */ end = min(vma->vm_end, start + (PAGE_SIZE << compound_order(page))); + if (PageHuge(page)) { + /* + * If sharing is possible, start and end will be adjusted + * accordingly. + */ + adjust_range_if_pmd_sharing_possible(vma, &start, &end); + } mmu_notifier_invalidate_range_start(vma->vm_mm, start, end); while (page_vma_mapped_walk(&pvmw)) { @@ -1409,6 +1419,32 @@ static bool try_to_unmap_one(struct page *page, struct vm_area_struct *vma, subpage = page - page_to_pfn(page) + pte_pfn(*pvmw.pte); address = pvmw.address; + if (PageHuge(page)) { + if (huge_pmd_unshare(mm, &address, pvmw.pte)) { + /* + * huge_pmd_unshare unmapped an entire PMD + * page. There is no way of knowing exactly + * which PMDs may be cached for this mm, so + * we must flush them all. start/end were + * already adjusted above to cover this range. + */ + flush_cache_range(vma, start, end); + flush_tlb_range(vma, start, end); + mmu_notifier_invalidate_range(mm, start, end); + + /* + * The ref count of the PMD page was dropped + * which is part of the way map counting + * is done for shared PMDs. Return 'true' + * here. When there is no other sharing, + * huge_pmd_unshare returns false and we will + * unmap the actual page and drop map count + * to zero. + */ + page_vma_mapped_walk_done(&pvmw); + break; + } + } if (IS_ENABLED(CONFIG_MIGRATION) && (flags & TTU_MIGRATION) && -- 2.17.1

5 years, 7 months

4
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Linux-stable-mirror August 2018