Lkft-triage September 2026

lkft-triage@lists.linaro.org

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by Greg Kroah-Hartman

This is the start of the stable review cycle for the 6.18.49 release. There are 83 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 Wed, 02 Sep 2026 13:32:19 +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/v6.x/stable-review/patch-6.18.49-rc… or in the git tree and branch at: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.18.y and the diffstat can be found below. thanks, greg k-h ------------- Pseudo-Shortlog of commits: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org> Linux 6.18.49-rc1 Miguel Peñaranda <mig.penaranda07(a)gmail.com> usb: usbfs: fix use-after-free of usb_device in usbdev_release() Devin Wittmayer <lucid_duck(a)justthetip.ca> wifi: mt76: mt7925: ensure tx headroom in usb_sdio_tx_prepare_skb Shuangpeng Bai <shuangpeng.kernel(a)gmail.com> USB: c67x00: fix use-after-free in c67x00_add_iso_urb() Johan Hovold <johan(a)kernel.org> USB: serial: spcp8x5: drop broken carrier detect support Jiale Yao <yaojiale02(a)163.com> USB: serial: option: fix slab OOB read in interrupt URB callback Will Porter <mrwillporter(a)gmail.com> ALSA: usb-audio: Complete cleanup after system-resume errors Marouane El Moufid <eun0us(a)espilon.net> ALSA: usb-audio: fix OOB write in snd_usbmidi_novation_output() Griffin Kroah-Hartman <griffin(a)kroah.com> usb: core: Strengthen error handling in hub_hub_status() Griffin Kroah-Hartman <griffin(a)kroah.com> usb: core: Add lock to usb_wakeup_notification() Christian Borntraeger <borntraeger(a)linux.ibm.com> KVM: s390: vsie: zero stale crypto bits Bartosz Golaszewski <bartosz.golaszewski(a)oss.qualcomm.com> crypto: qce - Remove unsafe/deprecated algorithms Thorsten Blum <thorsten.blum(a)linux.dev> crypto: mxs-dcp - fix source scatterlist length access Md Sadre Alam <md.alam(a)oss.qualcomm.com> crypto: qce - fix CCM AAD buffer underallocation Jan Sebastian Götte <linux(a)jaseg.de> crypto: krb5 - use kfree_sensitive() for derived key buffers Thorsten Blum <thorsten.blum(a)linux.dev> crypto: atmel-tdes - use scatterlist length before DMA mapping Eric Biggers <ebiggers(a)kernel.org> crypto: qcom-rng - Allow zero as a random number Eric Biggers <ebiggers(a)kernel.org> crypto: qcom-rng - Remove crypto_rng interface Eric Biggers <ebiggers(a)kernel.org> crypto: qcom-rng - Enable clock in hwrng case Bryam Vargas <hexlabsecurity(a)proton.me> crypto: virtio - bound the akcipher result length Eric Biggers <ebiggers(a)kernel.org> kunit: irq: Continue increasing hrtimer interval for longer Eric Biggers <ebiggers(a)kernel.org> mm/swap: reject swapon() on filesystem-level encrypted files Fourie Zhang <littleddfu(a)gmail.com> netfilter: nf_tables: don't queue packet path object notifications Eric Biggers <ebiggers(a)kernel.org> netfilter: nft_set_pipapo_avx2: add missing vzeroupper Kyle Zeng <kylebot(a)openai.com> vxlan: keep the last remote linked during FDB flush Kyle Zeng <kylebot(a)openai.com> batman-adv: reject unrepresentable multicast TVLV offsets Kyle Zeng <kylebot(a)openai.com> ipv6: seg6: clear IPv4 control block on IPIP decapsulation Norbert Szetei <norbert(a)doyensec.com> net: bridge: mcast: fix use-after-free of a master VLAN's multicast context Zihan Xi <zihanx(a)nebusec.ai> xfrm: bound nat keepalive state collection Zihan Xi <zihanx(a)nebusec.ai> xfrm: fix xfrm_state_construct() auth-trunc leak Asim Viladi Oglu Manizada <manizada(a)pm.me> xfrm: ah6: validate routing header segments_left Zihan Xi <xizh2024(a)lzu.edu.cn> xfrm: avoid lock inversion in nat keepalive work Zhiling Zou <roxy520tt(a)gmail.com> xfrm: drop ESP-in-TCP packets with no ingress device Sabrina Dubroca <sd(a)queasysnail.net> xfrm: espintcp: fix UAF during close Hyunwoo Kim <imv4bel(a)gmail.com> net/tcp-ao: fix use-after-free of current_key on reconnect to another peer Qing Ming <a0yami(a)mailbox.org> tcp: fix AO info use-after-free in tcp_ao_connect_init() Rastislav Szabo <rastislav.szabo(a)isovalent.com> net/tcp: fix TCP-AO key deletion in VRFs Pratik Vishwakarma <Pratik.Vishwakarma(a)amd.com> x86/CPU/AMD: Carve out a Zen5 models range Qing Ming <a0yami(a)mailbox.org> gtp: serialize PDP context updates Jiayuan Chen <jiayuan.chen(a)linux.dev> tls: device: fix out-of-bounds write in tls_append_frag() Sean Christopherson <seanjc(a)google.com> KVM: SEV: Wire up kvm_x86_ops.gmem_xxx() if and only if CONFIG_KVM_AMD_SEV=y Sean Christopherson <seanjc(a)google.com> KVM: SEV: Mark vCPU RUNNABLE after AP_CREATE, even if VMSA is unusable Sean Christopherson <seanjc(a)google.com> KVM: SEV: Extract loading of guest-provided VMSA to a separate helper Sean Christopherson <seanjc(a)google.com> KVM: SEV: Track the GPA of the guest-controlled VMSA used for SNP guests Pankaj Gupta <pankaj.gupta(a)amd.com> KVM: SEV: Drop FOLL_WRITE for encrypted region registration Shuangpeng Bai <shuangpeng.kernel(a)gmail.com> usb: gadget: f_tcm: keep port count until LUN teardown completes Aleksandr Nogikh <nogikh(a)google.com> usb: usbtest: disable dynamic ID support Baokun Li <libaokun(a)linux.alibaba.com> fuse: fix invalidate lock leak on open O_TRUNC DAX failure Baokun Li <libaokun(a)linux.alibaba.com> fuse: fix invalidate lock leak on setattr writeback failure Lucas De Marchi <ldemarchi(a)nvidia.com> xhci: dbgtty: Fix unregister on tty_alloc_driver() failure Lucas De Marchi <ldemarchi(a)nvidia.com> xhci: dbgtty: Fix unregister on tty_register_driver() failure Semih Baskan <strst.gs(a)gmail.com> usb: xhci: Handle USB3 port events when there is one roothub Michal Pecio <michal.pecio(a)gmail.com> usb: xhci: Handle bogus TRB pointers in Missed Service Error events Haoxiang Li <lihaoxiang(a)isrc.iscas.ac.cn> accessibility: speakup: unregister tty ldisc on later init failures Griffin Kroah-Hartman <griffin(a)kroah.com> fpga: dfl: fme: add error handling DaeMyung Kang <charsyam(a)gmail.com> ksmbd: harden file lifetime during session teardown Raman Varabets <kernel-linux-20260610-80b7ab08(a)raman.v1.sg> HID: ft260: fix stack-use-after-return write in I2C read race Michael Zaidman <michael.zaidman(a)gmail.com> HID: ft260: validate i2c input report length Jann Horn <jannh(a)google.com> HID: asus: fix missing hid_is_usb() check Antheas Kapenekakis <lkml(a)antheas.dev> HID: asus: simplify RGB init sequence Jose Villaseñor Montfort <pepemontfort(a)gmail.com> HID: magicmouse: prevent unbounded recursion in magicmouse_raw_event() Jens Axboe <axboe(a)kernel.dk> io_uring: defer eventfd signaling when queued from a wakeup handler Pavel Begunkov <asml.silence(a)gmail.com> io_uring/rsrc: improve regbuf iov validation Caleb Sander Mateos <csander(a)purestorage.com> io_uring: simplify IORING_SETUP_DEFER_TASKRUN && !SQPOLL check Jens Axboe <axboe(a)kernel.dk> io_uring/futex: only mark private futex waits as inflight Aboorva Devarajan <aboorvad(a)linux.ibm.com> powerpc/hv-gpci: fix preempt count leak in sysfs show paths Jesper Dangaard Brouer <hawk(a)kernel.org> veth: fix OOB txq access in veth_poll() with asymmetric queue counts Stephen Smalley <stephen.smalley.work(a)gmail.com> selinux: switch two allocations to use kzalloc_objs() Cristian Ciocaltea <cristian.ciocaltea(a)collabora.com> ASoC: nau8821: Cancel pending work before suspend Michael Neuling <mikey(a)neuling.org> riscv: Fix register corruption from uninitialized cregs on error Jiayuan Chen <jiayuan.chen(a)linux.dev> bpf: Fix use-after-free in offloaded map/prog info fill Cristian Ciocaltea <cristian.ciocaltea(a)collabora.com> ASoC: nau8821: Cancel delayed work on component remove Bryam Vargas <hexlabsecurity(a)proton.me> selinux: require a class's permission values to cover its permission count Bryam Vargas <hexlabsecurity(a)proton.me> selinux: reject a permission value exceeding the class permission count Christian Göttsche <cgzones(a)googlemail.com> selinux: more strict policy parsing Christian Göttsche <cgzones(a)googlemail.com> selinux: use u16 for security classes Wentao Guan <guanwentao(a)uniontech.com> Revert "selinux: reject a permission value exceeding the class permission count" Dmitry Bogdanov <d.bogdanov(a)yadro.com> nvme-tcp: fix usage of page_frag_cache Jinu Kim <kimjw04271234(a)gmail.com> KVM: x86/mmu: Check write tracking in all address spaces Jia Yao <jia.yao(a)intel.com> drm/xe/guc_ads: use uncached mapping for UM queue BO Jia Yao <jia.yao(a)intel.com> drm/xe/guc_ads: allocate UM queues in VRAM on dGFX Jia Yao <jia.yao(a)intel.com> drm/xe/guc_ads: allocate UM queues in a separate BO Peiyang He <peiyang_he(a)smail.nju.edu.cn> RDMA/rxe: Fix OOB in free_rd_atomic_resources() Ibrahim Hashimov <security(a)auditcode.ai> RDMA/rxe: Fix responder UAF on IB_QP_MAX_DEST_RD_ATOMIC modify_qp ------------- Diffstat: Documentation/filesystems/fscrypt.rst | 4 + Makefile | 4 +- arch/powerpc/perf/hv-gpci.c | 24 +- arch/riscv/kernel/compat_signal.c | 2 + arch/riscv/kernel/ptrace.c | 4 +- arch/s390/kvm/vsie.c | 1 + arch/x86/kernel/cpu/amd.c | 1 + arch/x86/kvm/mmu/page_track.c | 32 ++- arch/x86/kvm/svm/sev.c | 76 +++--- arch/x86/kvm/svm/svm.c | 8 +- arch/x86/kvm/svm/svm.h | 13 +- crypto/krb5/krb5_api.c | 8 +- drivers/accessibility/speakup/main.c | 1 + drivers/crypto/Kconfig | 1 - drivers/crypto/atmel-tdes.c | 5 +- drivers/crypto/mxs-dcp.c | 2 +- drivers/crypto/qce/aead.c | 58 +---- drivers/crypto/qce/common.c | 55 +---- drivers/crypto/qce/common.h | 16 +- drivers/crypto/qce/regs-v5.h | 4 - drivers/crypto/qce/sha.c | 30 +-- drivers/crypto/qce/sha.h | 1 - drivers/crypto/qce/skcipher.c | 97 +------- drivers/crypto/qcom-rng.c | 156 ++----------- .../crypto/virtio/virtio_crypto_akcipher_algs.c | 3 +- drivers/fpga/dfl-fme-perf.c | 2 + drivers/gpu/drm/xe/xe_bo.h | 14 ++ drivers/gpu/drm/xe/xe_guc_ads.c | 92 +++++--- drivers/gpu/drm/xe/xe_guc_ads_types.h | 5 + drivers/hid/hid-asus.c | 52 ++--- drivers/hid/hid-ft260.c | 41 +++- drivers/hid/hid-magicmouse.c | 25 +- drivers/infiniband/sw/rxe/rxe_qp.c | 18 +- drivers/net/gtp.c | 21 +- drivers/net/veth.c | 3 +- drivers/net/vxlan/vxlan_core.c | 11 +- drivers/net/wireless/mediatek/mt76/mt7925/mac.c | 4 + drivers/nvme/host/tcp.c | 8 + drivers/target/target_core_fabric_configfs.c | 8 + drivers/usb/c67x00/c67x00-sched.c | 4 +- drivers/usb/core/devio.c | 2 +- drivers/usb/core/hub.c | 7 +- drivers/usb/gadget/function/f_tcm.c | 2 +- drivers/usb/host/xhci-dbgtty.c | 15 +- drivers/usb/host/xhci-ring.c | 20 +- drivers/usb/misc/usbtest.c | 1 + drivers/usb/serial/option.c | 20 +- drivers/usb/serial/spcp8x5.c | 13 -- fs/fuse/dir.c | 9 +- fs/fuse/file.c | 4 +- fs/smb/server/smb2pdu.c | 6 +- fs/smb/server/vfs_cache.c | 179 +++++++++++++-- fs/smb/server/vfs_cache.h | 4 +- include/kunit/run-in-irq-context.h | 10 +- include/linux/io_uring_types.h | 8 + include/linux/skbuff.h | 24 ++ include/target/target_core_fabric.h | 2 + io_uring/eventfd.c | 8 +- io_uring/eventfd.h | 2 +- io_uring/futex.c | 21 +- io_uring/io_uring.c | 7 +- io_uring/poll.c | 23 +- io_uring/rsrc.c | 31 +-- io_uring/waitid.c | 2 +- kernel/bpf/offload.c | 10 +- mm/swapfile.c | 7 + net/batman-adv/tvlv.c | 5 +- net/bridge/br_multicast.c | 4 +- net/ipv4/tcp_ao.c | 19 +- net/ipv6/ah6.c | 29 ++- net/ipv6/seg6_local.c | 7 + net/netfilter/nf_tables_api.c | 36 +-- net/netfilter/nft_set_pipapo_avx2.c | 17 +- net/tls/tls_device.c | 3 +- net/xfrm/espintcp.c | 9 +- net/xfrm/xfrm_nat_keepalive.c | 53 ++++- net/xfrm/xfrm_user.c | 2 +- security/selinux/include/security.h | 1 + security/selinux/ss/avtab.c | 35 ++- security/selinux/ss/avtab.h | 13 ++ security/selinux/ss/conditional.c | 25 +- security/selinux/ss/constraint.h | 1 + security/selinux/ss/policydb.c | 254 +++++++++++++++++---- security/selinux/ss/policydb.h | 31 ++- security/selinux/ss/services.c | 8 +- sound/soc/codecs/nau8821.c | 13 ++ sound/usb/card.c | 14 +- sound/usb/midi.c | 2 + 88 files changed, 1156 insertions(+), 776 deletions(-)

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Lkft-triage September 2026