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-rc1... 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@linuxfoundation.org Linux 6.18.49-rc1

Miguel Peñaranda mig.penaranda07@gmail.com usb: usbfs: fix use-after-free of usb_device in usbdev_release()

Devin Wittmayer lucid_duck@justthetip.ca wifi: mt76: mt7925: ensure tx headroom in usb_sdio_tx_prepare_skb

Shuangpeng Bai shuangpeng.kernel@gmail.com USB: c67x00: fix use-after-free in c67x00_add_iso_urb()

Johan Hovold johan@kernel.org USB: serial: spcp8x5: drop broken carrier detect support

Jiale Yao yaojiale02@163.com USB: serial: option: fix slab OOB read in interrupt URB callback

Will Porter mrwillporter@gmail.com ALSA: usb-audio: Complete cleanup after system-resume errors

Marouane El Moufid eun0us@espilon.net ALSA: usb-audio: fix OOB write in snd_usbmidi_novation_output()

Griffin Kroah-Hartman griffin@kroah.com usb: core: Strengthen error handling in hub_hub_status()

Griffin Kroah-Hartman griffin@kroah.com usb: core: Add lock to usb_wakeup_notification()

Christian Borntraeger borntraeger@linux.ibm.com KVM: s390: vsie: zero stale crypto bits

Bartosz Golaszewski bartosz.golaszewski@oss.qualcomm.com crypto: qce - Remove unsafe/deprecated algorithms

Thorsten Blum thorsten.blum@linux.dev crypto: mxs-dcp - fix source scatterlist length access

Md Sadre Alam md.alam@oss.qualcomm.com crypto: qce - fix CCM AAD buffer underallocation

Jan Sebastian Götte linux@jaseg.de crypto: krb5 - use kfree_sensitive() for derived key buffers

Thorsten Blum thorsten.blum@linux.dev crypto: atmel-tdes - use scatterlist length before DMA mapping

Eric Biggers ebiggers@kernel.org crypto: qcom-rng - Allow zero as a random number

Eric Biggers ebiggers@kernel.org crypto: qcom-rng - Remove crypto_rng interface

Eric Biggers ebiggers@kernel.org crypto: qcom-rng - Enable clock in hwrng case

Bryam Vargas hexlabsecurity@proton.me crypto: virtio - bound the akcipher result length

Eric Biggers ebiggers@kernel.org kunit: irq: Continue increasing hrtimer interval for longer

Eric Biggers ebiggers@kernel.org mm/swap: reject swapon() on filesystem-level encrypted files

Fourie Zhang littleddfu@gmail.com netfilter: nf_tables: don't queue packet path object notifications

Eric Biggers ebiggers@kernel.org netfilter: nft_set_pipapo_avx2: add missing vzeroupper

Kyle Zeng kylebot@openai.com vxlan: keep the last remote linked during FDB flush

Kyle Zeng kylebot@openai.com batman-adv: reject unrepresentable multicast TVLV offsets

Kyle Zeng kylebot@openai.com ipv6: seg6: clear IPv4 control block on IPIP decapsulation

Norbert Szetei norbert@doyensec.com net: bridge: mcast: fix use-after-free of a master VLAN's multicast context

Zihan Xi zihanx@nebusec.ai xfrm: bound nat keepalive state collection

Zihan Xi zihanx@nebusec.ai xfrm: fix xfrm_state_construct() auth-trunc leak

Asim Viladi Oglu Manizada manizada@pm.me xfrm: ah6: validate routing header segments_left

Zihan Xi xizh2024@lzu.edu.cn xfrm: avoid lock inversion in nat keepalive work

Zhiling Zou roxy520tt@gmail.com xfrm: drop ESP-in-TCP packets with no ingress device

Sabrina Dubroca sd@queasysnail.net xfrm: espintcp: fix UAF during close

Hyunwoo Kim imv4bel@gmail.com net/tcp-ao: fix use-after-free of current_key on reconnect to another peer

Qing Ming a0yami@mailbox.org tcp: fix AO info use-after-free in tcp_ao_connect_init()

Rastislav Szabo rastislav.szabo@isovalent.com net/tcp: fix TCP-AO key deletion in VRFs

Pratik Vishwakarma Pratik.Vishwakarma@amd.com x86/CPU/AMD: Carve out a Zen5 models range

Qing Ming a0yami@mailbox.org gtp: serialize PDP context updates

Jiayuan Chen jiayuan.chen@linux.dev tls: device: fix out-of-bounds write in tls_append_frag()

Sean Christopherson seanjc@google.com KVM: SEV: Wire up kvm_x86_ops.gmem_xxx() if and only if CONFIG_KVM_AMD_SEV=y

Sean Christopherson seanjc@google.com KVM: SEV: Mark vCPU RUNNABLE after AP_CREATE, even if VMSA is unusable

Sean Christopherson seanjc@google.com KVM: SEV: Extract loading of guest-provided VMSA to a separate helper

Sean Christopherson seanjc@google.com KVM: SEV: Track the GPA of the guest-controlled VMSA used for SNP guests

Pankaj Gupta pankaj.gupta@amd.com KVM: SEV: Drop FOLL_WRITE for encrypted region registration

Shuangpeng Bai shuangpeng.kernel@gmail.com usb: gadget: f_tcm: keep port count until LUN teardown completes

Aleksandr Nogikh nogikh@google.com usb: usbtest: disable dynamic ID support

Baokun Li libaokun@linux.alibaba.com fuse: fix invalidate lock leak on open O_TRUNC DAX failure

Baokun Li libaokun@linux.alibaba.com fuse: fix invalidate lock leak on setattr writeback failure

Lucas De Marchi ldemarchi@nvidia.com xhci: dbgtty: Fix unregister on tty_alloc_driver() failure

Lucas De Marchi ldemarchi@nvidia.com xhci: dbgtty: Fix unregister on tty_register_driver() failure

Semih Baskan strst.gs@gmail.com usb: xhci: Handle USB3 port events when there is one roothub

Michal Pecio michal.pecio@gmail.com usb: xhci: Handle bogus TRB pointers in Missed Service Error events

Haoxiang Li lihaoxiang@isrc.iscas.ac.cn accessibility: speakup: unregister tty ldisc on later init failures

Griffin Kroah-Hartman griffin@kroah.com fpga: dfl: fme: add error handling

DaeMyung Kang charsyam@gmail.com ksmbd: harden file lifetime during session teardown

Raman Varabets kernel-linux-20260610-80b7ab08@raman.v1.sg HID: ft260: fix stack-use-after-return write in I2C read race

Michael Zaidman michael.zaidman@gmail.com HID: ft260: validate i2c input report length

Jann Horn jannh@google.com HID: asus: fix missing hid_is_usb() check

Antheas Kapenekakis lkml@antheas.dev HID: asus: simplify RGB init sequence

Jose Villaseñor Montfort pepemontfort@gmail.com HID: magicmouse: prevent unbounded recursion in magicmouse_raw_event()

Jens Axboe axboe@kernel.dk io_uring: defer eventfd signaling when queued from a wakeup handler

Pavel Begunkov asml.silence@gmail.com io_uring/rsrc: improve regbuf iov validation

Caleb Sander Mateos csander@purestorage.com io_uring: simplify IORING_SETUP_DEFER_TASKRUN && !SQPOLL check

Jens Axboe axboe@kernel.dk io_uring/futex: only mark private futex waits as inflight

Aboorva Devarajan aboorvad@linux.ibm.com powerpc/hv-gpci: fix preempt count leak in sysfs show paths

Jesper Dangaard Brouer hawk@kernel.org veth: fix OOB txq access in veth_poll() with asymmetric queue counts

Stephen Smalley stephen.smalley.work@gmail.com selinux: switch two allocations to use kzalloc_objs()

Cristian Ciocaltea cristian.ciocaltea@collabora.com ASoC: nau8821: Cancel pending work before suspend

Michael Neuling mikey@neuling.org riscv: Fix register corruption from uninitialized cregs on error

Jiayuan Chen jiayuan.chen@linux.dev bpf: Fix use-after-free in offloaded map/prog info fill

Cristian Ciocaltea cristian.ciocaltea@collabora.com ASoC: nau8821: Cancel delayed work on component remove

Bryam Vargas hexlabsecurity@proton.me selinux: require a class's permission values to cover its permission count

Bryam Vargas hexlabsecurity@proton.me selinux: reject a permission value exceeding the class permission count

Christian Göttsche cgzones@googlemail.com selinux: more strict policy parsing

Christian Göttsche cgzones@googlemail.com selinux: use u16 for security classes

Wentao Guan guanwentao@uniontech.com Revert "selinux: reject a permission value exceeding the class permission count"

Dmitry Bogdanov d.bogdanov@yadro.com nvme-tcp: fix usage of page_frag_cache

Jinu Kim kimjw04271234@gmail.com KVM: x86/mmu: Check write tracking in all address spaces

Jia Yao jia.yao@intel.com drm/xe/guc_ads: use uncached mapping for UM queue BO

Jia Yao jia.yao@intel.com drm/xe/guc_ads: allocate UM queues in VRAM on dGFX

Jia Yao jia.yao@intel.com drm/xe/guc_ads: allocate UM queues in a separate BO

Peiyang He peiyang_he@smail.nju.edu.cn RDMA/rxe: Fix OOB in free_rd_atomic_resources()

Ibrahim Hashimov security@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(-)