This is the start of the stable review cycle for the 5.15.218 release. There are 76 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, 27 Aug 2026 13:25:02 +0000. 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/v5.x/stable-review/patch-5.15.218-rc... or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.15.y and the diffstat can be found below.

thanks,

greg k-h

------------- Pseudo-Shortlog of commits:

Greg Kroah-Hartman gregkh@linuxfoundation.org Linux 5.15.218-rc1

Michael Bommarito michael.bommarito@gmail.com HID: hyperv: validate initial device info bounds

Haoxiang Li haoxiang_li2024@163.com HID: sensor: custom: Fix use-after-free in enable_sensor

Jann Horn jannh@google.com HID: core: fix number/pointer type confusion on long items

Oliver Hartkopp socketcan@hartkopp.net can: isotp: fix timer drain order, wakeup handling and tx_gen ordering

Oliver Hartkopp socketcan@hartkopp.net can: use skb hash instead of private variable in headroom

Qing Luo luoqing@kylinos.cn mptcp: pm: fix data race in add_addr timer callback

Matthieu Baerts (NGI0) matttbe@kernel.org mptcp: pm: ADD_ADDR rtx: free sk if last

Matthieu Baerts (NGI0) matttbe@kernel.org mptcp: pm: ADD_ADDR rtx: always decrease sk refcount

Matthieu Baerts (NGI0) matttbe@kernel.org mptcp: pm: ADD_ADDR rtx: allow ID 0

Donglin Lyu DongLin_Lyu@outlook.com Input: atkbd - skip deactivate for HONOR ZQC-P

Cryolitia PukNgae cryolitia.pukngae@linux.dev Input: atkbd - skip deactivate for HONOR FMB-P's internal keyboard

Eric Farman farman@linux.ibm.com s390/vfio_ccw: Free all memory if cp_init() fails

Joanne Koong joannelkoong@gmail.com iomap: adjust read range correctly for non-block-aligned positions

Sean Christopherson seanjc@google.com KVM: x86: Retry page fault if MMU reload is pending and root has no sp

Xiang Mei (Microsoft) xmei5@asu.edu xfrm: fix sk_dst_cache double-free in xfrm_user_policy()

Baul Lee baul.lee@xbow.com HID: core: fix OOB read of field->usage in hid_set_field()

Lee Jones lee@kernel.org HID: magicmouse: Prevent out-of-bounds (OOB) read during DOUBLE_REPORT_ID

Jose Villaseñor Montfort pepemontfort@gmail.com HID: magicmouse: do not keep a stale msc->input if no input is claimed

Sean Christopherson seanjc@google.com KVM: x86: Check for invalid/obsolete root *after* making MMU pages available

David Matlack dmatlack@google.com KVM: x86/mmu: Rename __direct_map() to direct_map()

David Matlack dmatlack@google.com KVM: x86/mmu: Split out TDP MMU page fault handling

Chao Peng chao.p.peng@linux.intel.com KVM: Rename mmu_notifier_* to mmu_invalidate_*

Sean Christopherson seanjc@google.com KVM: x86/mmu: Document the "rules" for using host_pfn_mapping_level()

Sean Christopherson seanjc@google.com KVM: x86/mmu: Rename pte_list_{destroy,remove}() to show they zap SPTEs

Sean Christopherson seanjc@google.com KVM: x86/mmu: Directly "destroy" PTE list when recycling rmaps

Sean Christopherson seanjc@google.com KVM: x86/mmu: Retry page fault if root is invalidated by memslot update

Dawid Wróbel me@dawidwrobel.com ASoC: codecs: lpass-tx-macro: Fix enum kcontrol accesses

Matthieu Baerts (NGI0) matttbe@kernel.org mptcp: avoid combining some incoming suboptions

Eric Farman farman@linux.ibm.com s390/vfio_ccw: Implement a crw lock

Eric Farman farman@linux.ibm.com s390/vfio_ccw: Selectively expand io_mutex

Eric Farman farman@linux.ibm.com s390/vfio_ccw: Ensure index for read/write regions are within range

Greg Kroah-Hartman gregkh@linuxfoundation.org nvmet-tcp: Do not WARN on remotely-controlled oversized SGL allocations

Jiang HongHui jiang_hh2019@163.com nvmet-fc: fix invalid free in LS IOD error path

Luxiao Xu rakukuip@gmail.com ipv6: fix use-after-free in ip6_finish_output2()

Yong Wang edragain@163.com ipv4: reject undersized MTUs in ip_do_fragment()

Yang Wang kevinyang.wang@amd.com drm/amdgpu: check ASPM on the dGPU host link

Pavitra Jha jhapavitra98@gmail.com libceph: fix OOB read in decode_watchers() via missing bounds check

Linmao Li lilinmao@kylinos.cn nfc: nci: free destination parameters when closing a connection

Samuel Page sam@bynar.io nfc: nci: fix uninit-value in the RF discover/activated NTF handlers

Samuel Page sam@bynar.io nfc: nci: fix out-of-bounds write in nci_target_auto_activated()

Doruk Tan Ozturk doruk@0sec.ai nfc: st21nfca: validate ATR_REQ length against the received frame

Xu Rao raoxu@uniontech.com nfc: pn533: purge fragmented skbs during cleanup

Doruk Tan Ozturk doruk@0sec.ai nfc: llcp: reject PDUs shorter than the LLCP header

Muhammad Bilal meatuni001@gmail.com nfc: llcp: fix OOB read and u8 offset wrap in TLV parsers

Doruk Tan Ozturk doruk@0sec.ai nfc: llcp: bound the connect_sn TLV walk to the skb

Pengpeng Hou pengpeng@iscas.ac.cn nfc: microread: validate target discovery payload lengths

Bryam Vargas hexlabsecurity@proton.me nfc: fdp: bound the device-reported read length and fix an skb leak

Doruk Tan Ozturk doruk@0sec.ai nfc: digital: clamp SENSF_RES length to the destination buffer

Ibrahim Hashimov security@auditcode.ai xfs: bounds-check buffer log item's dirty bitmap

Eric Farman farman@linux.ibm.com s390/vfio_ccw: Cancel existing workqueues

Pei Xiao xiaopei01@kylinos.cn mmc: atmel-mci: Fix use-after-free in atmci_remove due to race condition

Zhiling Zou zhilinz@nebusec.ai inet: frags: publish queues before arming timer

Zihan Xi zihanx@nebusec.ai packet: synchronize pressure clearing with ring reconfiguration

Zijie Huang milkory@outlook.com net/sched: reject overly deep qdisc hierarchies

Qihang Tang q.h.hack.winter@gmail.com packet: use consistent hard_header_len in TX_RING send path

Qihang Tang q.h.hack.winter@gmail.com packet: use consistent hard_header_len in non-ring send paths

Fan Wu fanwu01@zju.edu.cn serial: amba-pl011: synchronize DMA teardown

Koichiro Den den@valinux.co.jp NTB: ntb_netdev: Preserve RX queue depth on allocation failure

Aditya Chillara aditya.chillara@oss.qualcomm.com perf/core: Fix group leader use-after-free after sibling detach

Yeoreum Yun yeoreum.yun@arm.com perf: Fix dangling cgroup pointer in cpuctx

Peter Zijlstra peterz@infradead.org perf: Fix cgroup state vs ERROR

Yeoreum Yun yeoreum.yun@arm.com perf/core: Fix child_total_time_enabled accounting bug at task exit

Ekansh Gupta ekansh.gupta@oss.qualcomm.com misc: fastrpc: Remove buffer from list prior to unmap operation

Abel Vesa abel.vesa@linaro.org misc: fastrpc: Rework fastrpc_req_munmap

Srinivas Kandagatla srinivas.kandagatla@linaro.org misc: fastrpc: separate fastrpc device from channel context

Lorenzo Stoakes (ARM) ljs@kernel.org mm/huge_memory: fix huge_zero_pfn race

Junjie Cao junjie.cao@intel.com gpio: ml-ioh: use raw_spinlock_t for the register lock

Hongling Zeng zenghongling@kylinos.cn xfs: validate attr entry pointer before field access

Guanghui Yang 3497809730@qq.com ext4: clear error before retrying inode xattr space fallback

Matthias Goergens matthias.goergens@gmail.com ext4: stop retrying saturated xattr cache entries

Rik van Riel riel@surriel.com null_blk: fix UBSAN shift-out-of-bounds when zone_size is 0 or overflows

Ian Bridges icb@fastmail.org ocfs2: fix missing metadata reservation for large xattrs

Takashi Iwai tiwai@suse.de ALSA: dummy: Check card index validity at probe

Griffin Kroah-Hartman griffin@kroah.com rndis_host: add overflow check in rndis_rx_fixup()

Ali Ahmet Memis ali@iusegentoo.com Bluetooth: RFCOMM: take rfcomm_mutex for the deferred setup accept

Steffen Persvold spersvold@gmail.com PCI: host-generic: Fix NULL pointer dereference on 32-bit CAM systems

-------------

Diffstat:

Makefile | 4 +- arch/arm64/kvm/mmu.c | 10 +- arch/mips/kvm/mmu.c | 12 +- arch/powerpc/include/asm/kvm_book3s_64.h | 2 +- arch/powerpc/kvm/book3s_64_mmu_host.c | 4 +- arch/powerpc/kvm/book3s_64_mmu_hv.c | 4 +- arch/powerpc/kvm/book3s_64_mmu_radix.c | 6 +- arch/powerpc/kvm/book3s_64_vio_hv.c | 2 +- arch/powerpc/kvm/book3s_hv_nested.c | 2 +- arch/powerpc/kvm/book3s_hv_rm_mmu.c | 8 +- arch/powerpc/kvm/e500_mmu_host.c | 4 +- arch/x86/kvm/mmu/mmu.c | 189 +++++++++++++---- arch/x86/kvm/mmu/paging_tmpl.h | 13 +- drivers/block/null_blk/zoned.c | 10 +- drivers/gpio/gpio-ml-ioh.c | 36 ++-- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 50 ++++- drivers/hid/hid-core.c | 11 +- drivers/hid/hid-hyperv.c | 27 ++- drivers/hid/hid-magicmouse.c | 26 +++ drivers/hid/hid-sensor-custom.c | 21 +- drivers/input/keyboard/atkbd.c | 23 ++- drivers/misc/fastrpc.c | 110 ++++++---- drivers/mmc/host/atmel-mci.c | 2 + drivers/net/can/dev/skb.c | 2 - drivers/net/can/slcan.c | 1 - drivers/net/ntb_netdev.c | 15 +- drivers/net/usb/rndis_host.c | 6 +- drivers/nfc/fdp/i2c.c | 27 +++ drivers/nfc/microread/microread.c | 31 ++- drivers/nfc/pn533/pn533.c | 1 + drivers/nfc/st21nfca/dep.c | 3 + drivers/nvme/target/fc.c | 2 +- drivers/nvme/target/tcp.c | 5 +- drivers/pci/controller/pci-host-generic.c | 11 +- drivers/pci/ecam.c | 13 ++ drivers/s390/cio/vfio_ccw_async.c | 16 ++ drivers/s390/cio/vfio_ccw_chp.c | 31 ++- drivers/s390/cio/vfio_ccw_cp.c | 31 ++- drivers/s390/cio/vfio_ccw_drv.c | 14 +- drivers/s390/cio/vfio_ccw_ops.c | 15 +- drivers/s390/cio/vfio_ccw_private.h | 7 +- drivers/tty/serial/amba-pl011.c | 8 +- fs/ext4/xattr.c | 7 +- fs/iomap/buffered-io.c | 19 +- fs/ocfs2/xattr.c | 18 +- fs/xfs/libxfs/xfs_attr_leaf.c | 14 ++ fs/xfs/xfs_buf_item_recover.c | 53 +++-- include/linux/can/core.h | 1 + include/linux/can/skb.h | 3 - include/linux/kvm_host.h | 60 +++--- include/linux/netdevice.h | 6 +- include/linux/pci-ecam.h | 3 + include/net/sch_generic.h | 1 + kernel/events/core.c | 121 +++++------ mm/huge_memory.c | 52 +++-- net/bluetooth/rfcomm/core.c | 24 ++- net/can/af_can.c | 14 +- net/can/bcm.c | 2 - net/can/isotp.c | 320 +++++++++++++++++++++-------- net/can/j1939/socket.c | 1 - net/can/j1939/transport.c | 2 - net/can/raw.c | 7 +- net/ceph/osd_client.c | 5 +- net/ipv4/inet_fragment.c | 6 +- net/ipv4/ip_output.c | 4 + net/ipv6/ip6_output.c | 2 + net/mptcp/options.c | 57 +++++ net/mptcp/pm_netlink.c | 39 ++-- net/mptcp/protocol.h | 1 + net/nfc/digital_technology.c | 2 + net/nfc/llcp_commands.c | 18 +- net/nfc/llcp_core.c | 15 +- net/nfc/nci/ntf.c | 10 +- net/nfc/nci/rsp.c | 1 + net/packet/af_packet.c | 65 ++++-- net/sched/sch_api.c | 9 + net/xfrm/xfrm_state.c | 4 +- sound/drivers/dummy.c | 6 + sound/soc/codecs/lpass-tx-macro.c | 4 +- virt/kvm/kvm_main.c | 49 ++--- 80 files changed, 1314 insertions(+), 526 deletions(-)