CVE-2023-53821

The Linux Kernel, the operating system core itself.

Security Fix(es):

In the Linux kernel, the following vulnerability has been resolved:

scsi: libsas: Fix use-after-free bug in smp_execute_task_sg()

When executing SMP task failed, the smp_execute_task_sg() calls del_timer() to delete "slow_task->timer". However, if the timer handler sas_task_internal_timedout() is running, the del_timer() in smp_execute_task_sg() will not stop it and a UAF will happen. The process is shown below:

  (thread 1)               |        (thread 2)

smp_execute_task_sg() | sas_task_internal_timedout() ... | del_timer() | ... | ... sas_free_task(task) | kfree(task->slow_task) //FREE| | task->slow_task->... //USE

Fix by calling del_timer_sync() in smp_execute_task_sg(), which makes sure the timer handler have finished before the "task->slow_task" is deallocated.(CVE-2022-50422)

In the Linux kernel, the following vulnerability has been resolved:

ppp: associate skb with a device at tx

Syzkaller triggered flow dissector warning with the following:

r0 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000000), 0xc0802, 0x0) ioctl$PPPIOCNEWUNIT(r0, 0xc004743e, &(0x7f00000000c0)) ioctl$PPPIOCSACTIVE(r0, 0x40107446, &(0x7f0000000240)={0x2, &(0x7f0000000180)=[{0x20, 0x0, 0x0, 0xfffff034}, {0x6}]}) pwritev(r0, &(0x7f0000000040)=[{&(0x7f0000000140)='\x00!', 0x2}], 0x1, 0x0, 0x0)

[ 9.485814] WARNING: CPU: 3 PID: 329 at net/core/flow_dissector.c:1016 __skb_flow_dissect+0x1ee0/0x1fa0 [ 9.485929] skb_get_poff+0x53/0xa0 [ 9.485937] bpf_skb_get_pay_offset+0xe/0x20 [ 9.485944] ? ppp_send_frame+0xc2/0x5b0 [ 9.485949] ? _raw_spin_unlock_irqrestore+0x40/0x60 [ 9.485958] ? __ppp_xmit_process+0x7a/0xe0 [ 9.485968] ? ppp_xmit_process+0x5b/0xb0 [ 9.485974] ? ppp_write+0x12a/0x190 [ 9.485981] ? do_iter_write+0x18e/0x2d0 [ 9.485987] ? __import_iovec+0x30/0x130 [ 9.485997] ? do_pwritev+0x1b6/0x240 [ 9.486016] ? trace_hardirqs_on+0x47/0x50 [ 9.486023] ? __x64_sys_pwritev+0x24/0x30 [ 9.486026] ? do_syscall_64+0x3d/0x80 [ 9.486031] ? entry_SYSCALL_64_after_hwframe+0x63/0xcd

Flow dissector tries to find skb net namespace either via device or via socket. Neigher is set in ppp_send_frame, so let's manually use ppp->dev.(CVE-2022-50655)

In the Linux kernel, the following vulnerability has been resolved:

RDMA/rxe: Fix "kernel NULL pointer dereference" error

When rxe_queue_init in the function rxe_qp_init_req fails, both qp->req.task.func and qp->req.task.arg are not initialized.

Because of creation of qp fails, the function rxe_create_qp will call rxe_qp_do_cleanup to handle allocated resource.

Before calling __rxe_do_task, both qp->req.task.func and qp->req.task.arg should be checked.(CVE-2022-50671)

In the Linux kernel, the following vulnerability has been resolved:

usb: idmouse: fix an uninit-value in idmouse_open

In idmouse_create_image, if any ftip_command fails, it will go to the reset label. However, this leads to the data in bulk_in_buffer[HEADER..IMGSIZE] uninitialized. And the check for valid image incurs an uninitialized dereference.

Fix this by moving the check before reset label since this check only be valid if the data after bulk_in_buffer[HEADER] has concrete data.

Note that this is found by KMSAN, so only kernel compilation is tested.(CVE-2022-50733)

In the Linux kernel, the following vulnerability has been resolved:

acct: fix potential integer overflow in encode_comp_t()

The integer overflow is descripted with following codes: > 317 static comp_t encode_comp_t(u64 value) > 318 { > 319 int exp, rnd; ...... > 341 exp <<= MANTSIZE; > 342 exp += value; > 343 return exp; > 344 }

Currently…

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Rocky Linux SIG Cloud 8.10 Release Notes linked from the References section.

• mm: hugetlb: fix UAF in hugetlb_handle_userfault {CVE-2022-50630}
• drm/amdkfd: fix potential kgd_mem UAFs {CVE-2023-53816}
• net/mlx5e: Fix deadlock in tc route query code {CVE-2023-53591}
• PCI: Fix pci_device_is_present() for VFs by checking PF {CVE-2022-50636}
• wifi: ath11k: fix monitor mode bringup crash {CVE-2022-50627}
• wifi: mac80211_hwsim: drop short frames {CVE-2023-53321}
• scsi: target: iscsi: Fix timeout on deleted connection {CVE-2025-38075}
• amdgpu: validate offset_in_bo of drm_amdgpu_gem_va {CVE-2023-53819}
• dmaengine: ptdma: check for null desc before calling pt_cmd_callback {CVE-2023-53755}
• wifi: mt7601u: fix an integer underflow {CVE-2023-53679}
• Bluetooth: hci_event: call disconnect callback before deleting conn {CVE-2023-53673}
• firmware: arm_scpi: Ensure scpi_info is not assigned if the probe fails {CVE-2022-50087}
• tls: wait for pending async decryptions if tls_strp_msg_hold fails {CVE-2025-40176}
• clone_private_mnt(): make sure that caller has CAP_SYS_ADMIN in the right userns {CVE-2025-38499}
• net: openvswitch: reject negative ifindex {CVE-2023-53843}
• drm/i915: Fix NULL ptr deref by checking new_crtc_state {CVE-2023-53833}
• iommu/amd: Improve page fault error reporting {CVE-2023-53789}
• media: v4l2-mem2mem: add lock to protect parameter num_rdy {CVE-2023-53519}
• Bluetooth: Fix potential use-after-free when clear keys {CVE-2023-53386}
• Bluetooth: L2CAP: Fix use-after-free {CVE-2023-53305}
• ext4: add bounds checking in get_max_inline_xattr_value_size() {CVE-2023-53285}
• ext4: fix use-after-free in ext4_orphan_cleanup {CVE-2022-50673}
• cacheinfo: Fix shared_cpu_map to handle shared caches at different levels {CVE-2023-53254}
• rxrpc: Make it so that a waiting process can be aborted {CVE-2023-53218}
• ip6_vti: fix slab-use-after-free in decode_session6 {CVE-2023-53821}
• vxlan: Fix nexthop hash size {CVE-2023-53192}
• wifi: mac80211: check S1G action frame size {CVE-2023-53257}
• wifi: rtlwifi: Fix global-out-of-bounds bug in _rtl8812ae_phy_set_txpower_limit() {CVE-2022-50279}
• dm flakey: fix a crash with invalid table line {CVE-2023-53786}
• md/raid10: fix null-ptr-deref in raid10_sync_request {CVE-2023-53832}
• md: don't dereference mddev after export_rdev() {CVE-2023-53665}
• md: fix 'delete_mutex' deadlock
• md: fix duplicate filename for rdev {CVE-2023-53665}
• kernfs: Fix UAF in polling when open file is released {CVE-2025-39881}
• mptcp: pm: avoid possible UaF when selecting endp {CVE-2024-44974}
• mptcp: fix UaF in listener shutdown {CVE-2023-53088}
• Bluetooth: MGMT: Fix possible UAFs {CVE-2025-39981}
• Bluetooth: hci_sync: fix set_local_name race condition
• Bluetooth: MGMT: Fix possible deadlocks {CVE-2024-53207}
• tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect(). {CVE-2025-40186}
• e1000e: fix heap overflow in e1000_set_eeprom {CVE-2025-39898}
• wifi: cfg80211: fix use-after-free in cmp_bss() {CVE-2025-39864}
• nfsd: handle get_client_locked() failure in nfsd4_setclientid_confirm() {CVE-2025-38724}
• usb: xhci: Apply the link chain quirk on NEC isoc endpoints {CVE-2025-22022}
• xfrm: xfrm_alloc_spi shouldn't use 0 as SPI {CVE-2025-39965}
• xfrm: Duplicate SPI Handling {CVE-2025-39797}
• nfsd: release svc_expkey/svc_export with rcu_work {CVE-2024-53216}
• NFS: Fix a race when updating an existing write {CVE-2025-39697}
• nfs: fold nfs_page_group_lock_subrequests into nfs_lock_and_join_requests
• drm/amd/display: Check dce_hwseq before dereferencing it {CVE-2025-38361}

• ip6_vti: fix slab-use-after-free in decode_session6 {CVE-2023-53821}
• ACPICA: Add AML_NO_OPERAND_RESOLVE flag to Timer {CVE-2023-53395}
• wifi: mac80211_hwsim: drop short frames {CVE-2023-53321}
• ext4: add bounds checking in get_max_inline_xattr_value_size() {CVE-2023-53285}
• md/raid10: fix null-ptr-deref in raid10_sync_request {CVE-2023-53832}
• dm flakey: fix a crash with invalid table line {CVE-2023-53786}
• wifi: mt7601u: fix an integer underflow {CVE-2023-53679}
• ext4: fix bug_on in __es_tree_search caused by bad boot loader inode {CVE-2022-50638}
• USB: usbtmc: Fix direction for 0-length ioctl control messages {CVE-2023-53761}
• scsi: ses: Fix slab-out-of-bounds in ses_enclosure_data_process() {CVE-2023-53803}
• ALSA: usb-audio: Fix out-of-bounds read in snd_usb_get_audioformat_uac3() {CVE-2025-38249}
• md/raid1: Fix stack memory use after return in raid1_reshape {CVE-2025-38445}
• atm: clip: Fix infinite recursive call of clip_push(). {CVE-2025-38459}
• dm cache: free background tracker's queued work in {CVE-2023-53765}
• drm/amdkfd: Fix UBSAN shift-out-of-bounds warning {CVE-2021-4460}
• drm/vmwgfx: Validate the box size for the snooped cursor {CVE-2022-36280,CVE-2022-50440}
• vsock: Do not allow binding to VMADDR_PORT_ANY {CVE-2025-38618}
• ice: set tx_tstamps when creating new Tx rings via ethtool {CVE-2022-50710}
• media: dvb-frontends: avoid stack overflow warnings with clang {CVE-2024-27075}
• PCI/ASPM: Disable ASPM on MFD function removal to avoid use-after-free {CVE-2023-53446}
• cifs: Fix warning and UAF when destroy the MR list {CVE-2023-53427}
• sctp: fix a potential overflow in sctp_ifwdtsn_skip {CVE-2023-53372}
• md/raid10: check slab-out-of-bounds in md_bitmap_get_counter {CVE-2023-53357}
• lwt: Fix return values of BPF xmit ops {CVE-2023-53338}
• ubi: ensure that VID header offset + VID header size <= alloc, size {CVE-2023-53265}
• ACPICA: Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage() {CVE-2022-50423}
• Bluetooth: hci_sysfs: Fix attempting to call device_add multiple times {CVE-2022-50419}
• ACPICA: Fix error code path in acpi_ds_call_control_method() {CVE-2022-50411}
• ata: ahci: Match EM_MAX_SLOTS with SATA_PMP_MAX_PORTS {CVE-2022-50315}
• wifi: iwlwifi: dvm: Fix memcpy: detected field-spanning write backtrace {CVE-2023-54286}

• scsi: ses: Fix slab-out-of-bounds in ses_enclosure_data_process() {CVE-2023-53803}
• md/raid1: Fix stack memory use after return in raid1_reshape {CVE-2025-38445}
• ALSA: usb-audio: Fix out-of-bounds read in snd_usb_get_audioformat_uac3() {CVE-2025-38249}
• atm: clip: Fix infinite recursive call of clip_push(). {CVE-2025-38459}
• dm cache: free background tracker's queued work in {CVE-2023-53765}
• drm/vmwgfx: Validate the box size for the snooped cursor {CVE-2022-36280,CVE-2022-50440}
• vsock: Do not allow binding to VMADDR_PORT_ANY {CVE-2025-38618}
• ice: set tx_tstamps when creating new Tx rings via ethtool {CVE-2022-50710}
• sctp: avoid NULL dereference when chunk data buffer is {CVE-2025-40240}
• ip6_vti: fix slab-use-after-free in decode_session6 {CVE-2023-53821}
• wifi: mac80211_hwsim: drop short frames {CVE-2023-53321}
• ext4: add bounds checking in get_max_inline_xattr_value_size() {CVE-2023-53285}
• md/raid10: fix null-ptr-deref in raid10_sync_request {CVE-2023-53832}
• dm flakey: fix a crash with invalid table line {CVE-2023-53786}
• wifi: mt7601u: fix an integer underflow {CVE-2023-53679}
• ext4: fix bug_on in __es_tree_search caused by bad boot loader inode {CVE-2022-50638}
• ext4: add EXT4_IGET_BAD flag to prevent unexpected bad inode
• ext4: add helper to check quota inums
• ext4: fix bug_on in __es_tree_search caused by bad quota inode
• quota: Factor out setup of quota inode
• USB: usbtmc: Fix direction for 0-length ioctl control messages {CVE-2023-53761}
• ACPICA: Add AML_NO_OPERAND_RESOLVE flag to Timer {CVE-2023-53395}
• drm/amd/display: Check num_valid_sets before accessing reader_wm_sets[] {CVE-2024-46815}
• Bluetooth: btsdio: fix use after free bug in btsdio_remove due to race condition {CVE-2023-1989}
• nvmet: avoid potential UAF in nvmet_req_complete() {CVE-2023-53116}
• wifi: brcmfmac: Fix potential stack-out-of-bounds in brcmf_c_preinit_dcmds() {CVE-2022-50258}
• dm raid: fix address sanitizer warning in raid_status {CVE-2022-50084}
• vt: Clear selection before changing the font {CVE-2022-49948}
• ipvs: fix WARNING in ip_vs_app_net_cleanup() {CVE-2022-49917}
• capabilities: fix undefined behavior in bit shift for CAP_TO_MASK {CVE-2022-49870}
• ata: libata-transport: fix double ata_host_put() in ata_tport_add() {CVE-2022-49826}
• ath9k_htc: fix potential out of bounds access with invalid rxstatus->rs_keyix {CVE-2022-49503}
• selinux: Add boundary check in put_entry() {CVE-2022-50200}
• rbd: avoid use-after-free in do_rbd_add() when rbd_dev_create() fails {CVE-2023-53307}
• RDMA/mlx5: Return the firmware result upon destroying QP/RQ {CVE-2023-53286}
• sched/fair: Don't balance task to its current running CPU {CVE-2023-53215}
• powercap: intel_rapl: fix UBSAN shift-out-of-bounds issue {CVE-2022-50366}
• ACPI: tables: FPDT: Don't call acpi_os_map_memory() on invalid phys address {CVE-2022-50320}
• wifi: ath9k: Fix use-after-free in ath9k_hif_usb_disconnect() {CVE-2022-50881}
• slcan: Don't transmit uninitialized stack data in padding {CVE-2020-11494}
• media: dvb-frontends: avoid stack overflow warnings with clang {CVE-2024-27075}
• PCI/ASPM: Disable ASPM on MFD function removal to avoid use-after-free {CVE-2023-53446}
• cifs: Fix warning and UAF when destroy the MR list {CVE-2023-53427}
• sctp: fix a potential overflow in sctp_ifwdtsn_skip {CVE-2023-53372}
• md/raid10: check slab-out-of-bounds in md_bitmap_get_counter {CVE-2023-53357}
• lwt: Fix return values of BPF xmit ops {CVE-2023-53338}
• ubi: ensure that VID header offset + VID header size <= alloc, size {CVE-2023-53265}
• ACPICA: Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage() {CVE-2022-50423}
• Bluetooth: hci_sysfs: Fix attempting to call device_add multiple times {CVE-2022-50419}
• ACPICA: Fix error code path in acpi_ds_call_control_method() {CVE-2022-50411}
• ata: ahci: Match EM_MAX_SLOTS with SATA_PMP_MAX_PORTS {CVE-2022-50315}
• wifi: iwlwifi: dvm: Fix memcpy: detected field-spanning write backtrace {CVE-2023-54286}

• CVE-2022-49416
  • wifi: mac80211: fix use-after-free in chanctx code {CVE-2022-49416}
• CVE-2022-49685
  • iio: trigger: sysfs: fix use-after-free on remove {CVE-2022-49685}
• CVE-2021-47670
  • can: peak_usb: fix use after free bugs {CVE-2021-47670}
• CVE-2026-98706
  • wifi: mac80211: drain PS delivery work during station teardown {CVE-2026-98706}
• CVE-2026-98610
  • net/sched: sch_hfsc: bound the classify inner-filter walk with a drift budget {CVE-2026-98610}
• CVE-2026-98548
  • sctp: discard the rest of the packet on a stale-cookie error {CVE-2026-98548}
• CVE-2026-98614
  • sctp: avoid livelock while updating retransmit path {CVE-2026-98614}
• CVE-2026-98547
  • af_packet: fix integer overflow in prb_calc_retire_blk_tmo() {CVE-2026-98547}
• CVE-2026-98579
  • nfc: llcp: fix sdreq TLV list leak on parse/alloc/send failure {CVE-2026-98579}
• CVE-2026-98581
  • nfc: llcp: Fix list corruption / refcount desync in nfc_llcp_recv_dm() {CVE-2026-98581}
• CVE-2026-98577
  • nfc: llcp: fix WKS SAP hijacking via prefix match in nfc_llcp_wks_sap() {CVE-2026-98577}
• CVE-2026-98482
  • nfc: llcp: drop truncated I/RR/RNR PDUs in nfc_llcp_recv_hdlc() {CVE-2026-98482}
• CVE-2026-98576
  • nfc: llcp: fix slab-out-of-bounds reads when logging service names {CVE-2026-98576}
• CVE-2026-98624
  • netfilter: nfnetlink_queue: hold nfnl mutex in event notifier {CVE-2026-98624}
  • netlink: use blocking notifier {CVE-2026-98624}
• CVE-2026-98794
  • ipvs: filter some flags received in the backup server {CVE-2026-98794}
• CVE-2026-98829
  • wifi: mac80211: drop oversized fragments to avoid extra_len overflow {CVE-2026-98829}
• CVE-2026-98708
  • wifi: mac80211: keep paired old chanctx alive {CVE-2026-98708}
• CVE-2026-98707
  • wifi: mac80211: shut down RX BA session timer on teardown {CVE-2026-98707}
• CVE-2026-98532
  • ipv6: do not let ipv6_find_hdr() return an offset past the packet end {CVE-2026-98532}
• CVE-2026-98541
  • fou: reject omitted FOU_ATTR_IPPROTO on FOU_ENCAP_DIRECT {CVE-2026-98541}
• CVE-2026-98461
  • Bluetooth: hci_sock: validate event length before filtering {CVE-2026-98461}
• CVE-2026-98621
  • net: gue: reject invalid REMCSUM offsets {CVE-2026-98621}
• CVE-2026-98526
  • llc: reserve device headroom for allocated frames {CVE-2026-98526}
• CVE-2026-98555
  • llc: fix skb UAF and leaks on llc_mac_hdr_init() failure {CVE-2026-98555}
• CVE-2026-98573
  • net: skbuff: fix pull-bound underflow in skb_checksum_setup_ipv6() {CVE-2026-98573}
• CVE-2026-98739
  • Bluetooth: RFCOMM: Fix initial port reference race {CVE-2026-98739}
• CVE-2026-98457
  • Bluetooth: L2CAP: validate frame length before control and FCS access {CVE-2026-98457}
• CVE-2026-98460
  • Bluetooth: hci_sock: reject out-of-range OCF values {CVE-2026-98460}
• CVE-2026-98856
  • kprobes: Skip disarmed probes when checking optkprobe overlap {CVE-2026-98856}
• CVE-2026-98636
  • squashfs: Add dictionary size range check to prevent shift-out-of-bounds {CVE-2026-98636}
• CVE-2026-98681
  • smb: client: split cifsFileInfo bitfields to avoid shared-byte RMW races {CVE-2026-98681}
• CVE-2026-98771
  • usb: storage: sierra_ms: reject short SWoC info transfers {CVE-2026-98771}
• CVE-2026-98772
  • USB: serial: fix port tear down use-after-free {CVE-2026-98772}
• CVE-2026-98696
  • USB: serial: fix driver deregistration order {CVE-2026-98696}
• CVE-2026-98697
  • USB: serial: fix dynamic id driver deregistration race {CVE-2026-98697}
• CVE-2026-98769
  • usb: gadget: f_uac1_legacy: validate bRequest index in generic_{set,get}_cmd {CVE-2026-98769}
• CVE-2026-98764
  • usb: gadget: f_fs: Fix NULL pointer dereference in …

In the Linux kernel, the following vulnerability has been resolved:

ip6_vti: fix slab-use-after-free in decode_session6

When ipv6_vti device is set to the qdisc of the sfb type, the cb field of the sent skb may be modified during enqueuing. Then, slab-use-after-free may occur when ipv6_vti device sends IPv6 packets.

The stack information is as follows: BUG: KASAN: slab-use-after-free in decode_session6+0x103f/0x1890 Read of size 1 at addr ffff88802e08edc2 by task swapper/0/0 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.4.0-next-20230707-00001-g84e2cad7f979 #410 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-1.fc33 04/01/2014 Call Trace: <IRQ> dump_stack_lvl+0xd9/0x150 print_address_description.constprop.0+0x2c/0x3c0 kasan_report+0x11d/0x130 decode_session6+0x103f/0x1890 __xfrm_decode_session+0x54/0xb0 vti6_tnl_xmit+0x3e6/0x1ee0 dev_hard_start_xmit+0x187/0x700 sch_direct_xmit+0x1a3/0xc30 __qdisc_run+0x510/0x17a0 __dev_queue_xmit+0x2215/0x3b10 neigh_connected_output+0x3c2/0x550 ip6_finish_output2+0x55a/0x1550 ip6_finish_output+0x6b9/0x1270 ip6_output+0x1f1/0x540 ndisc_send_skb+0xa63/0x1890 ndisc_send_rs+0x132/0x6f0 addrconf_rs_timer+0x3f1/0x870 call_timer_fn+0x1a0/0x580 expire_timers+0x29b/0x4b0 run_timer_softirq+0x326/0x910 __do_softirq+0x1d4/0x905 irq_exit_rcu+0xb7/0x120 sysvec_apic_timer_interrupt+0x97/0xc0 </IRQ> Allocated by task 9176: kasan_save_stack+0x22/0x40 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x7f/0x90 kmem_cache_alloc_node+0x1cd/0x410 kmalloc_reserve+0x165/0x270 __alloc_skb+0x129/0x330 netlink_sendmsg+0x9b1/0xe30 sock_sendmsg+0xde/0x190 ____sys_sendmsg+0x739/0x920 ___sys_sendmsg+0x110/0x1b0 __sys_sendmsg+0xf7/0x1c0 do_syscall_64+0x39/0xb0 entry_SYSCALL_64_after_hwframe+0x63/0xcd Freed by task 9176: kasan_save_stack+0x22/0x40 kasan_set_track+0x25/0x30 kasan_save_free_info+0x2b/0x40 ____kasan_slab_free+0x160/0x1c0 slab_free_freelist_hook+0x11b/0x220 kmem_cache_free+0xf0/0x490 skb_free_head+0x17f/0x1b0 skb_release_data+0x59c/0x850 consume_skb+0xd2/0x170 netlink_unicast+0x54f/0x7f0 netlink_sendmsg+0x926/0xe30 sock_sendmsg+0xde/0x190 ____sys_sendmsg+0x739/0x920 ___sys_sendmsg+0x110/0x1b0 __sys_sendmsg+0xf7/0x1c0 do_syscall_64+0x39/0xb0 entry_SYSCALL_64_after_hwframe+0x63/0xcd The buggy address belongs to the object at ffff88802e08ed00 which belongs to the cache skbuff_small_head of size 640 The buggy address is located 194 bytes inside of freed 640-byte region [ffff88802e08ed00, ffff88802e08ef80)

As commit f855691975bb ("xfrm6: Fix the nexthdr offset in _decode_session6.") showed, xfrm_decode_session was originally intended only for the receive path. IP6CB(skb)->nhoff is not set during transmission. Therefore, set the cb field in the skb to 0 before sending packets.

In the Linux kernel, the following vulnerability has been resolved: ip6_vti: fix slab-use-after-free in decode_session6 When ipv6_vti device is set to the qdisc of the sfb type, the cb field of the sent skb may be modified during enqueuing. Then, slab-use-after-free may occur when ipv6_vti device sends IPv6 packets. The stack information is as follows: BUG: KASAN: slab-use-after-free in decode_session6+0x103f/0x1890 Read of size 1 at addr ffff88802e08edc2 by task swapper/0/0 CPU: 0 PID: 0 Comm: swapper/0 Not tainted 6.4.0-next-20230707-00001-g84e2cad7f979 #410 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-1.fc33 04/01/2014 Call Trace: <IRQ> dump_stack_lvl+0xd9/0x150 print_address_description.constprop.0+0x2c/0x3c0 kasan_report+0x11d/0x130 decode_session6+0x103f/0x1890 __xfrm_decode_session+0x54/0xb0 vti6_tnl_xmit+0x3e6/0x1ee0 dev_hard_start_xmit+0x187/0x700 sch_direct_xmit+0x1a3/0xc30 __qdisc_run+0x510/0x17a0 __dev_queue_xmit+0x2215/0x3b10 neigh_connected_output+0x3c2/0x550 ip6_finish_output2+0x55a/0x1550 ip6_finish_output+0x6b9/0x1270 ip6_output+0x1f1/0x540 ndisc_send_skb+0xa63/0x1890 ndisc_send_rs+0x132/0x6f0 addrconf_rs_timer+0x3f1/0x870 call_timer_fn+0x1a0/0x580 expire_timers+0x29b/0x4b0 run_timer_softirq+0x326/0x910 __do_softirq+0x1d4/0x905 irq_exit_rcu+0xb7/0x120 sysvec_apic_timer_interrupt+0x97/0xc0 </IRQ> Allocated by task 9176: kasan_save_stack+0x22/0x40 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x7f/0x90 kmem_cache_alloc_node+0x1cd/0x410 kmalloc_reserve+0x165/0x270 __alloc_skb+0x129/0x330 netlink_sendmsg+0x9b1/0xe30 sock_sendmsg+0xde/0x190 ____sys_sendmsg+0x739/0x920 ___sys_sendmsg+0x110/0x1b0 __sys_sendmsg+0xf7/0x1c0 do_syscall_64+0x39/0xb0 entry_SYSCALL_64_after_hwframe+0x63/0xcd Freed by task 9176: kasan_save_stack+0x22/0x40 kasan_set_track+0x25/0x30 kasan_save_free_info+0x2b/0x40 ____kasan_slab_free+0x160/0x1c0 slab_free_freelist_hook+0x11b/0x220 kmem_cache_free+0xf0/0x490 skb_free_head+0x17f/0x1b0 skb_release_data+0x59c/0x850 consume_skb+0xd2/0x170 netlink_unicast+0x54f/0x7f0 netlink_sendmsg+0x926/0xe30 sock_sendmsg+0xde/0x190 ____sys_sendmsg+0x739/0x920 ___sys_sendmsg+0x110/0x1b0 __sys_sendmsg+0xf7/0x1c0 do_syscall_64+0x39/0xb0 entry_SYSCALL_64_after_hwframe+0x63/0xcd The buggy address belongs to the object at ffff88802e08ed00 which belongs to the cache skbuff_small_head of size 640 The buggy address is located 194 bytes inside of freed 640-byte region [ffff88802e08ed00, ffff88802e08ef80) As commit f855691975bb ("xfrm6: Fix the nexthdr offset in _decode_session6.") showed, xfrm_decode_session was originally intended only for the receive path. IP6CB(skb)->nhoff is not set during transmission. Therefore, set the cb field in the skb to 0 before sending packets.

The SUSE Linux Enterprise 15 SP7 RT kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2025-38321: smb: Log an error when close_all_cached_dirs fails (bsc#1246328).
• CVE-2025-38728: smb3: fix for slab out of bounds on mount to ksmbd (bsc#1249256).
• CVE-2025-39977: futex: Prevent use-after-free during requeue-PI (bsc#1252046).
• CVE-2025-40006: mm/hugetlb: fix folio is still mapped when deleted (bsc#1252342).
• CVE-2025-40024: vhost: Take a reference on the task in struct vhost_task (bsc#1252686).
• CVE-2025-40033: remoteproc: pru: Fix potential NULL pointer dereference in pru_rproc_set_ctable() (bsc#1252824).
• CVE-2025-40042: tracing: Fix race condition in kprobe initialization causing NULL pointer dereference (bsc#1252861).
• CVE-2025-40053: net: dlink: handle copy_thresh allocation failure (bsc#1252808).
• CVE-2025-40081: perf: arm_spe: Prevent overflow in PERF_IDX2OFF() (bsc#1252776).
• CVE-2025-40102: KVM: arm64: Prevent access to vCPU events before init (bsc#1252919).
• CVE-2025-40134: dm: fix NULL pointer dereference in __dm_suspend() (bsc#1253386).
• CVE-2025-40135: ipv6: use RCU in ip6_xmit() (bsc#1253342).
• CVE-2025-40153: mm: hugetlb: avoid soft lockup when mprotect to large memory area (bsc#1253408).
• CVE-2025-40158: ipv6: use RCU in ip6_output() (bsc#1253402).
• CVE-2025-40160: xen/events: Cleanup find_virq() return codes (bsc#1253400).
• CVE-2025-40167: ext4: detect invalid INLINE_DATA + EXTENTS flag combination (bsc#1253458).
• CVE-2025-40170: net: use dst_dev_rcu() in sk_setup_caps() (bsc#1253413).
• CVE-2025-40178: pid: Add a judgment for ns null in pid_nr_ns (bsc#1253463).
• CVE-2025-40179: ext4: verify orphan file size is not too big (bsc#1253442).
• CVE-2025-40187: net/sctp: fix a null dereference in sctp_disposition sctp_sf_do_5_1D_ce() (bsc#1253647).
• CVE-2025-40190: ext4: guard against EA inode refcount underflow in xattr update (bsc#1253623).
• CVE-2025-40215: kABI: xfrm: delete x->tunnel as we delete x (bsc#1254959).
• CVE-2025-40220: fuse: fix livelock in synchronous file put from fuseblk workers (bsc#1254520).
• CVE-2025-40231: vsock: fix lock inversion in vsock_assign_transport() (bsc#1254815).
• CVE-2025-40233: ocfs2: clear extent cache after moving/defragmenting extents (bsc#1254813).
• CVE-2025-40240: sctp: avoid NULL dereference when chunk data buffer is missing (bsc#1254869).
• CVE-2025-40242: gfs2: Fix unlikely race in gdlm_put_lock (bsc#1255075).
• CVE-2025-40248: vsock: Ignore signal/timeout on connect() if already established (bsc#1254864).
• CVE-2025-40250: net/mlx5: Clean up only new IRQ glue on request_irq() failure (bsc#1254854).
• CVE-2025-40251: devlink: rate: Unset parent pointer in devl_rate_nodes_destroy (bsc#1254856).
• CVE-2025-40252: net: qlogic/qede: fix potential out-of-bounds read in qede_tpa_cont() and qede_tpa_end() (bsc#1254849).
• CVE-2025-40258: mptcp: fix race condition in mptcp_schedule_work() (bsc#1254843).
• CVE-2025-40268: cifs: client: fix memory leak in smb3_fs_context_parse_param (bsc#1255082).
• CVE-2025-40271: fs/proc: fix uaf in proc_readdir_de() (bsc#1255297).
• CVE-2025-40274: KVM: guest_memfd: Remove bindings on memslot deletion when gmem is dying (bsc#1254830).
• CVE-2025-40278: net: sched: act_ife: initialize struct tc_ife to fix KMSAN kernel-infoleak (bsc#1254825).
• CVE-2025-40279: net: sched: act_connmark: initialize struct tc_ife to fix kernel leak (bsc#1254846).
• CVE-2025-40280: tipc: Fix use-after-free in tipc_mon_reinit_self() (bsc#1254847).
• CVE-2025-40287: exfat: fix improper check of dentry.stream.valid_size (bsc#1255030).
• CVE-2025-40289: drm/amdgpu: hide VRAM sysfs attributes on GPUs without VRAM (bsc#1255042).
• CVE-2025-40292: virtio-net: fix received length check in big packets (bsc#1255175).
• CVE-2025-40293: iommufd: Don't overflow during division for dirty tracking (bsc#1255179).
• CVE-2025-40297: net: bridge: fix use-after-free due to MST port state bypass (bsc#1255187). -…

The SUSE Linux Enterprise 15 SP7 Azure kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2025-38321: smb: Log an error when close_all_cached_dirs fails (bsc#1246328).
• CVE-2025-38728: smb3: fix for slab out of bounds on mount to ksmbd (bsc#1249256).
• CVE-2025-39977: futex: Prevent use-after-free during requeue-PI (bsc#1252046).
• CVE-2025-40006: mm/hugetlb: fix folio is still mapped when deleted (bsc#1252342).
• CVE-2025-40024: vhost: Take a reference on the task in struct vhost_task (bsc#1252686).
• CVE-2025-40033: remoteproc: pru: Fix potential NULL pointer dereference in pru_rproc_set_ctable() (bsc#1252824).
• CVE-2025-40042: tracing: Fix race condition in kprobe initialization causing NULL pointer dereference (bsc#1252861).
• CVE-2025-40053: net: dlink: handle copy_thresh allocation failure (bsc#1252808).
• CVE-2025-40081: perf: arm_spe: Prevent overflow in PERF_IDX2OFF() (bsc#1252776).
• CVE-2025-40102: KVM: arm64: Prevent access to vCPU events before init (bsc#1252919).
• CVE-2025-40134: dm: fix NULL pointer dereference in __dm_suspend() (bsc#1253386).
• CVE-2025-40135: ipv6: use RCU in ip6_xmit() (bsc#1253342).
• CVE-2025-40153: mm: hugetlb: avoid soft lockup when mprotect to large memory area (bsc#1253408).
• CVE-2025-40158: ipv6: use RCU in ip6_output() (bsc#1253402).
• CVE-2025-40160: xen/events: Cleanup find_virq() return codes (bsc#1253400).
• CVE-2025-40167: ext4: detect invalid INLINE_DATA + EXTENTS flag combination (bsc#1253458).
• CVE-2025-40170: net: use dst_dev_rcu() in sk_setup_caps() (bsc#1253413).
• CVE-2025-40178: pid: Add a judgment for ns null in pid_nr_ns (bsc#1253463).
• CVE-2025-40179: ext4: verify orphan file size is not too big (bsc#1253442).
• CVE-2025-40187: net/sctp: fix a null dereference in sctp_disposition sctp_sf_do_5_1D_ce() (bsc#1253647).
• CVE-2025-40190: ext4: guard against EA inode refcount underflow in xattr update (bsc#1253623).
• CVE-2025-40215: kABI: xfrm: delete x->tunnel as we delete x (bsc#1254959).
• CVE-2025-40220: fuse: fix livelock in synchronous file put from fuseblk workers (bsc#1254520).
• CVE-2025-40231: vsock: fix lock inversion in vsock_assign_transport() (bsc#1254815).
• CVE-2025-40233: ocfs2: clear extent cache after moving/defragmenting extents (bsc#1254813).
• CVE-2025-40240: sctp: avoid NULL dereference when chunk data buffer is missing (bsc#1254869).
• CVE-2025-40242: gfs2: Fix unlikely race in gdlm_put_lock (bsc#1255075).
• CVE-2025-40248: vsock: Ignore signal/timeout on connect() if already established (bsc#1254864).
• CVE-2025-40250: net/mlx5: Clean up only new IRQ glue on request_irq() failure (bsc#1254854).
• CVE-2025-40251: devlink: rate: Unset parent pointer in devl_rate_nodes_destroy (bsc#1254856).
• CVE-2025-40252: net: qlogic/qede: fix potential out-of-bounds read in qede_tpa_cont() and qede_tpa_end() (bsc#1254849).
• CVE-2025-40258: mptcp: fix race condition in mptcp_schedule_work() (bsc#1254843).
• CVE-2025-40268: cifs: client: fix memory leak in smb3_fs_context_parse_param (bsc#1255082).
• CVE-2025-40271: fs/proc: fix uaf in proc_readdir_de() (bsc#1255297).
• CVE-2025-40274: KVM: guest_memfd: Remove bindings on memslot deletion when gmem is dying (bsc#1254830).
• CVE-2025-40278: net: sched: act_ife: initialize struct tc_ife to fix KMSAN kernel-infoleak (bsc#1254825).
• CVE-2025-40279: net: sched: act_connmark: initialize struct tc_ife to fix kernel leak (bsc#1254846).
• CVE-2025-40280: tipc: Fix use-after-free in tipc_mon_reinit_self() (bsc#1254847).
• CVE-2025-40287: exfat: fix improper check of dentry.stream.valid_size (bsc#1255030).
• CVE-2025-40289: drm/amdgpu: hide VRAM sysfs attributes on GPUs without VRAM (bsc#1255042).
• CVE-2025-40292: virtio-net: fix received length check in big packets (bsc#1255175).
• CVE-2025-40293: iommufd: Don't overflow during division for dirty tracking (bsc#1255179).
• CVE-2025-40297: net: bridge: fix use-after-free due to MST port state bypass (bsc#1255187). -…

The SUSE Linux Enterprise 15 SP6 kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2025-38321: smb: Log an error when close_all_cached_dirs fails (bsc#1246328).
• CVE-2025-38728: smb3: fix for slab out of bounds on mount to ksmbd (bsc#1249256).
• CVE-2025-39890: wifi: ath12k: fix memory leak in ath12k_service_ready_ext_event (bsc#1250334).
• CVE-2025-39977: futex: Prevent use-after-free during requeue-PI (bsc#1252046).
• CVE-2025-40006: mm/hugetlb: fix folio is still mapped when deleted (bsc#1252342).
• CVE-2025-40024: vhost: Take a reference on the task in struct vhost_task (bsc#1252686).
• CVE-2025-40033: remoteproc: pru: Fix potential NULL pointer dereference in pru_rproc_set_ctable() (bsc#1252824).
• CVE-2025-40042: tracing: Fix race condition in kprobe initialization causing NULL pointer dereference (bsc#1252861).
• CVE-2025-40053: net: dlink: handle copy_thresh allocation failure (bsc#1252808).
• CVE-2025-40081: perf: arm_spe: Prevent overflow in PERF_IDX2OFF() (bsc#1252776).
• CVE-2025-40102: KVM: arm64: Prevent access to vCPU events before init (bsc#1252919).
• CVE-2025-40134: dm: fix NULL pointer dereference in __dm_suspend() (bsc#1253386).
• CVE-2025-40135: ipv6: use RCU in ip6_xmit() (bsc#1253342).
• CVE-2025-40153: mm: hugetlb: avoid soft lockup when mprotect to large memory area (bsc#1253408).
• CVE-2025-40158: ipv6: use RCU in ip6_output() (bsc#1253402).
• CVE-2025-40167: ext4: detect invalid INLINE_DATA + EXTENTS flag combination (bsc#1253458).
• CVE-2025-40170: net: use dst_dev_rcu() in sk_setup_caps() (bsc#1253413).
• CVE-2025-40178: pid: Add a judgment for ns null in pid_nr_ns (bsc#1253463).
• CVE-2025-40179: ext4: verify orphan file size is not too big (bsc#1253442).
• CVE-2025-40187: net/sctp: fix a null dereference in sctp_disposition sctp_sf_do_5_1D_ce() (bsc#1253647).
• CVE-2025-40215: kABI: xfrm: delete x->tunnel as we delete x (bsc#1254959).
• CVE-2025-40220: fuse: fix livelock in synchronous file put from fuseblk workers (bsc#1254520).
• CVE-2025-40233: ocfs2: clear extent cache after moving/defragmenting extents (bsc#1254813).
• CVE-2025-40242: gfs2: Fix unlikely race in gdlm_put_lock (bsc#1255075).
• CVE-2025-40258: mptcp: fix race condition in mptcp_schedule_work() (bsc#1254843).
• CVE-2025-40280: tipc: Fix use-after-free in tipc_mon_reinit_self() (bsc#1254847).
• CVE-2025-40297: net: bridge: fix use-after-free due to MST port state bypass (bsc#1255187).
• CVE-2025-40328: smb: client: fix potential UAF in smb2_close_cached_fid() (bsc#1254624).
• CVE-2025-40331: sctp: Prevent TOCTOU out-of-bounds write (bsc#1254615).
• CVE-2025-68259: KVM: SVM: Don't skip unrelated instruction if INT3/INTO is replaced (bsc#1255199).

The following non security issues were fixed:

• ACPI: processor_core: fix map_x2apic_id for amd-pstate on am4 (git-fixes).
• ACPI: property: Fix fwnode refcount leak in acpi_fwnode_graph_parse_endpoint() (git-fixes).
• ALSA: dice: fix buffer overflow in detect_stream_formats() (git-fixes).
• ALSA: firewire-motu: add bounds check in put_user loop for DSP events (git-fixes).
• ALSA: firewire-motu: fix buffer overflow in hwdep read for DSP events (git-fixes).
• ALSA: hda: cs35l41: Fix NULL pointer dereference in cs35l41_hda_read_acpi() (git-fixes).
• ALSA: uapi: Fix typo in asound.h comment (git-fixes).
• ALSA: usb-audio: Add DSD quirk for LEAK Stereo 230 (stable-fixes).
• ASoC: Intel: catpt: Fix error path in hw_params() (git-fixes).
• ASoC: ak4458: Disable regulator when error happens (git-fixes).
• ASoC: ak5558: Disable regulator when error happens (git-fixes).
• ASoC: codecs: wcd938x: fix OF node leaks on probe failure (git-fixes).
• ASoC: fsl_xcvr: clear the channel status control memory (git-fixes).
• ASoC: qcom: q6adm: the the copp device only during last instance (git-fixes).
• ASoC: qcom: q6asm-dai: perform correct state check before closing (git-fixes).
• ASoC: qcom: qdsp6: q6asm-dai: set 10 ms period and buffer alignment…

The SUSE Linux Enterprise 15 SP7 kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2025-38321: smb: Log an error when close_all_cached_dirs fails (bsc#1246328).
• CVE-2025-38728: smb3: fix for slab out of bounds on mount to ksmbd (bsc#1249256).
• CVE-2025-39977: futex: Prevent use-after-free during requeue-PI (bsc#1252046).
• CVE-2025-40006: mm/hugetlb: fix folio is still mapped when deleted (bsc#1252342).
• CVE-2025-40024: vhost: Take a reference on the task in struct vhost_task (bsc#1252686).
• CVE-2025-40033: remoteproc: pru: Fix potential NULL pointer dereference in pru_rproc_set_ctable() (bsc#1252824).
• CVE-2025-40042: tracing: Fix race condition in kprobe initialization causing NULL pointer dereference (bsc#1252861).
• CVE-2025-40053: net: dlink: handle copy_thresh allocation failure (bsc#1252808).
• CVE-2025-40081: perf: arm_spe: Prevent overflow in PERF_IDX2OFF() (bsc#1252776).
• CVE-2025-40102: KVM: arm64: Prevent access to vCPU events before init (bsc#1252919).
• CVE-2025-40134: dm: fix NULL pointer dereference in __dm_suspend() (bsc#1253386).
• CVE-2025-40135: ipv6: use RCU in ip6_xmit() (bsc#1253342).
• CVE-2025-40153: mm: hugetlb: avoid soft lockup when mprotect to large memory area (bsc#1253408).
• CVE-2025-40158: ipv6: use RCU in ip6_output() (bsc#1253402).
• CVE-2025-40160: xen/events: Cleanup find_virq() return codes (bsc#1253400).
• CVE-2025-40167: ext4: detect invalid INLINE_DATA + EXTENTS flag combination (bsc#1253458).
• CVE-2025-40170: net: use dst_dev_rcu() in sk_setup_caps() (bsc#1253413).
• CVE-2025-40178: pid: Add a judgment for ns null in pid_nr_ns (bsc#1253463).
• CVE-2025-40179: ext4: verify orphan file size is not too big (bsc#1253442).
• CVE-2025-40187: net/sctp: fix a null dereference in sctp_disposition sctp_sf_do_5_1D_ce() (bsc#1253647).
• CVE-2025-40190: ext4: guard against EA inode refcount underflow in xattr update (bsc#1253623).
• CVE-2025-40215: kABI: xfrm: delete x->tunnel as we delete x (bsc#1254959).
• CVE-2025-40220: fuse: fix livelock in synchronous file put from fuseblk workers (bsc#1254520).
• CVE-2025-40231: vsock: fix lock inversion in vsock_assign_transport() (bsc#1254815).
• CVE-2025-40233: ocfs2: clear extent cache after moving/defragmenting extents (bsc#1254813).
• CVE-2025-40240: sctp: avoid NULL dereference when chunk data buffer is missing (bsc#1254869).
• CVE-2025-40242: gfs2: Fix unlikely race in gdlm_put_lock (bsc#1255075).
• CVE-2025-40248: vsock: Ignore signal/timeout on connect() if already established (bsc#1254864).
• CVE-2025-40250: net/mlx5: Clean up only new IRQ glue on request_irq() failure (bsc#1254854).
• CVE-2025-40251: devlink: rate: Unset parent pointer in devl_rate_nodes_destroy (bsc#1254856).
• CVE-2025-40252: net: qlogic/qede: fix potential out-of-bounds read in qede_tpa_cont() and qede_tpa_end() (bsc#1254849).
• CVE-2025-40258: mptcp: fix race condition in mptcp_schedule_work() (bsc#1254843).
• CVE-2025-40268: cifs: client: fix memory leak in smb3_fs_context_parse_param (bsc#1255082).
• CVE-2025-40271: fs/proc: fix uaf in proc_readdir_de() (bsc#1255297).
• CVE-2025-40274: KVM: guest_memfd: Remove bindings on memslot deletion when gmem is dying (bsc#1254830).
• CVE-2025-40278: net: sched: act_ife: initialize struct tc_ife to fix KMSAN kernel-infoleak (bsc#1254825).
• CVE-2025-40279: net: sched: act_connmark: initialize struct tc_ife to fix kernel leak (bsc#1254846).
• CVE-2025-40280: tipc: Fix use-after-free in tipc_mon_reinit_self() (bsc#1254847).
• CVE-2025-40287: exfat: fix improper check of dentry.stream.valid_size (bsc#1255030).
• CVE-2025-40289: drm/amdgpu: hide VRAM sysfs attributes on GPUs without VRAM (bsc#1255042).
• CVE-2025-40292: virtio-net: fix received length check in big packets (bsc#1255175).
• CVE-2025-40293: iommufd: Don't overflow during division for dirty tracking (bsc#1255179).
• CVE-2025-40297: net: bridge: fix use-after-free due to MST port state bypass (bsc#1255187). -…

The SUSE Linux Enterprise Micro 6.0 and Micro 6.1 kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2023-54013: interconnect: Fix locking for runpm vs reclaim (bsc#1256280).
• CVE-2025-38321: smb: Log an error when close_all_cached_dirs fails (bsc#1246328).
• CVE-2025-38728: smb3: fix for slab out of bounds on mount to ksmbd (bsc#1249256).
• CVE-2025-39880: libceph: fix invalid accesses to ceph_connection_v1_info (bsc#1250388).
• CVE-2025-39890: wifi: ath12k: fix memory leak in ath12k_service_ready_ext_event (bsc#1250334).
• CVE-2025-39977: futex: Prevent use-after-free during requeue-PI (bsc#1252046).
• CVE-2025-40006: mm/hugetlb: fix folio is still mapped when deleted (bsc#1252342).
• CVE-2025-40024: vhost: Take a reference on the task in struct vhost_task (bsc#1252686).
• CVE-2025-40033: remoteproc: pru: Fix potential NULL pointer dereference in pru_rproc_set_ctable() (bsc#1252824).
• CVE-2025-40042: tracing: Fix race condition in kprobe initialization causing NULL pointer dereference (bsc#1252861).
• CVE-2025-40053: net: dlink: handle copy_thresh allocation failure (bsc#1252808).
• CVE-2025-40081: perf: arm_spe: Prevent overflow in PERF_IDX2OFF() (bsc#1252776).
• CVE-2025-40102: KVM: arm64: Prevent access to vCPU events before init (bsc#1252919).
• CVE-2025-40123: bpf: Enforce expected_attach_type for tailcall compatibility (bsc#1253365).
• CVE-2025-40134: dm: fix NULL pointer dereference in __dm_suspend() (bsc#1253386).
• CVE-2025-40135: ipv6: use RCU in ip6_xmit() (bsc#1253342).
• CVE-2025-40153: mm: hugetlb: avoid soft lockup when mprotect to large memory area (bsc#1253408).
• CVE-2025-40158: ipv6: use RCU in ip6_output() (bsc#1253402).
• CVE-2025-40160: xen/events: Cleanup find_virq() return codes (bsc#1253400).
• CVE-2025-40167: ext4: detect invalid INLINE_DATA + EXTENTS flag combination (bsc#1253458).
• CVE-2025-40170: net: use dst_dev_rcu() in sk_setup_caps() (bsc#1253413).
• CVE-2025-40178: pid: Add a judgment for ns null in pid_nr_ns (bsc#1253463).
• CVE-2025-40179: ext4: verify orphan file size is not too big (bsc#1253442).
• CVE-2025-40187: net/sctp: fix a null dereference in sctp_disposition sctp_sf_do_5_1D_ce() (bsc#1253647).
• CVE-2025-40190: ext4: guard against EA inode refcount underflow in xattr update (bsc#1253623).
• CVE-2025-40215: kABI: xfrm: delete x->tunnel as we delete x (bsc#1254959).
• CVE-2025-40220: fuse: fix livelock in synchronous file put from fuseblk workers (bsc#1254520).
• CVE-2025-40231: vsock: fix lock inversion in vsock_assign_transport() (bsc#1254815).
• CVE-2025-40233: ocfs2: clear extent cache after moving/defragmenting extents (bsc#1254813).
• CVE-2025-40238: net/mlx5: Fix IPsec cleanup over MPV device (bsc#1254871).
• CVE-2025-40240: sctp: avoid NULL dereference when chunk data buffer is missing (bsc#1254869).
• CVE-2025-40242: gfs2: Fix unlikely race in gdlm_put_lock (bsc#1255075).
• CVE-2025-40248: vsock: Ignore signal/timeout on connect() if already established (bsc#1254864).
• CVE-2025-40250: net/mlx5: Clean up only new IRQ glue on request_irq() failure (bsc#1254854).
• CVE-2025-40251: devlink: rate: Unset parent pointer in devl_rate_nodes_destroy (bsc#1254856).
• CVE-2025-40252: net: qlogic/qede: fix potential out-of-bounds read in qede_tpa_cont() and qede_tpa_end() (bsc#1254849).
• CVE-2025-40254: net: openvswitch: remove never-working support for setting nsh fields (bsc#1254852).
• CVE-2025-40257: mptcp: fix a race in mptcp_pm_del_add_timer() (bsc#1254842).
• CVE-2025-40258: mptcp: fix race condition in mptcp_schedule_work() (bsc#1254843).
• CVE-2025-40259: scsi: sg: Do not sleep in atomic context (bsc#1254845).
• CVE-2025-40261: nvme: nvme-fc: Ensure ->ioerr_work is cancelled in nvme_fc_delete_ctrl() (bsc#1254839).
• CVE-2025-40264: be2net: pass wrb_params in case of OS2BMC (bsc#1254835).
• CVE-2025-40268: cifs: client: fix memory leak in smb3_fs_context_parse_param (bsc#1255082).
• CVE-2025-40271: fs/proc: fix uaf in…

The SUSE Linux Enterprise Micro 6.0 and Micro 6.1 kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2023-54013: interconnect: Fix locking for runpm vs reclaim (bsc#1256280).
• CVE-2025-38321: smb: Log an error when close_all_cached_dirs fails (bsc#1246328).
• CVE-2025-38728: smb3: fix for slab out of bounds on mount to ksmbd (bsc#1249256).
• CVE-2025-39880: libceph: fix invalid accesses to ceph_connection_v1_info (bsc#1250388).
• CVE-2025-39890: wifi: ath12k: fix memory leak in ath12k_service_ready_ext_event (bsc#1250334).
• CVE-2025-39977: futex: Prevent use-after-free during requeue-PI (bsc#1252046).
• CVE-2025-40006: mm/hugetlb: fix folio is still mapped when deleted (bsc#1252342).
• CVE-2025-40024: vhost: Take a reference on the task in struct vhost_task (bsc#1252686).
• CVE-2025-40033: remoteproc: pru: Fix potential NULL pointer dereference in pru_rproc_set_ctable() (bsc#1252824).
• CVE-2025-40042: tracing: Fix race condition in kprobe initialization causing NULL pointer dereference (bsc#1252861).
• CVE-2025-40053: net: dlink: handle copy_thresh allocation failure (bsc#1252808).
• CVE-2025-40081: perf: arm_spe: Prevent overflow in PERF_IDX2OFF() (bsc#1252776).
• CVE-2025-40102: KVM: arm64: Prevent access to vCPU events before init (bsc#1252919).
• CVE-2025-40123: bpf: Enforce expected_attach_type for tailcall compatibility (bsc#1253365).
• CVE-2025-40134: dm: fix NULL pointer dereference in __dm_suspend() (bsc#1253386).
• CVE-2025-40135: ipv6: use RCU in ip6_xmit() (bsc#1253342).
• CVE-2025-40153: mm: hugetlb: avoid soft lockup when mprotect to large memory area (bsc#1253408).
• CVE-2025-40158: ipv6: use RCU in ip6_output() (bsc#1253402).
• CVE-2025-40160: xen/events: Cleanup find_virq() return codes (bsc#1253400).
• CVE-2025-40167: ext4: detect invalid INLINE_DATA + EXTENTS flag combination (bsc#1253458).
• CVE-2025-40170: net: use dst_dev_rcu() in sk_setup_caps() (bsc#1253413).
• CVE-2025-40178: pid: Add a judgment for ns null in pid_nr_ns (bsc#1253463).
• CVE-2025-40179: ext4: verify orphan file size is not too big (bsc#1253442).
• CVE-2025-40187: net/sctp: fix a null dereference in sctp_disposition sctp_sf_do_5_1D_ce() (bsc#1253647).
• CVE-2025-40190: ext4: guard against EA inode refcount underflow in xattr update (bsc#1253623).
• CVE-2025-40215: kABI: xfrm: delete x->tunnel as we delete x (bsc#1254959).
• CVE-2025-40220: fuse: fix livelock in synchronous file put from fuseblk workers (bsc#1254520).
• CVE-2025-40231: vsock: fix lock inversion in vsock_assign_transport() (bsc#1254815).
• CVE-2025-40233: ocfs2: clear extent cache after moving/defragmenting extents (bsc#1254813).
• CVE-2025-40238: net/mlx5: Fix IPsec cleanup over MPV device (bsc#1254871).
• CVE-2025-40240: sctp: avoid NULL dereference when chunk data buffer is missing (bsc#1254869).
• CVE-2025-40242: gfs2: Fix unlikely race in gdlm_put_lock (bsc#1255075).
• CVE-2025-40248: vsock: Ignore signal/timeout on connect() if already established (bsc#1254864).
• CVE-2025-40250: net/mlx5: Clean up only new IRQ glue on request_irq() failure (bsc#1254854).
• CVE-2025-40251: devlink: rate: Unset parent pointer in devl_rate_nodes_destroy (bsc#1254856).
• CVE-2025-40252: net: qlogic/qede: fix potential out-of-bounds read in qede_tpa_cont() and qede_tpa_end() (bsc#1254849).
• CVE-2025-40254: net: openvswitch: remove never-working support for setting nsh fields (bsc#1254852).
• CVE-2025-40257: mptcp: fix a race in mptcp_pm_del_add_timer() (bsc#1254842).
• CVE-2025-40258: mptcp: fix race condition in mptcp_schedule_work() (bsc#1254843).
• CVE-2025-40259: scsi: sg: Do not sleep in atomic context (bsc#1254845).
• CVE-2025-40261: nvme: nvme-fc: Ensure ->ioerr_work is cancelled in nvme_fc_delete_ctrl() (bsc#1254839).
• CVE-2025-40264: be2net: pass wrb_params in case of OS2BMC (bsc#1254835).
• CVE-2025-40268: cifs: client: fix memory leak in smb3_fs_context_parse_param (bsc#1255082).
• CVE-2025-40271: fs/proc: fix uaf in…

The SUSE Linux Enterprise Micro 6.0 and 6.1 RT kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2023-53817: crypto: lib/mpi - avoid null pointer deref in mpi_cmp_ui() (bsc#1254992).
• CVE-2025-37861: scsi: mpi3mr: Synchronous access b/w reset and tm thread for reply queue (bsc#1243055).
• CVE-2025-38321: smb: Log an error when close_all_cached_dirs fails (bsc#1246328).
• CVE-2025-38728: smb3: fix for slab out of bounds on mount to ksmbd (bsc#1249256).
• CVE-2025-39748: bpf: Forget ranges when refining tnum after JSET (bsc#1249587).
• CVE-2025-39880: libceph: fix invalid accesses to ceph_connection_v1_info (bsc#1250388).
• CVE-2025-39890: wifi: ath12k: fix memory leak in ath12k_service_ready_ext_event (bsc#1250334).
• CVE-2025-39964: crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg (bsc#1251966).
• CVE-2025-39977: futex: Prevent use-after-free during requeue-PI (bsc#1252046).
• CVE-2025-40006: mm/hugetlb: fix folio is still mapped when deleted (bsc#1252342).
• CVE-2025-40024: vhost: Take a reference on the task in struct vhost_task (bsc#1252686).
• CVE-2025-40033: remoteproc: pru: Fix potential NULL pointer dereference in pru_rproc_set_ctable() (bsc#1252824).
• CVE-2025-40042: tracing: Fix race condition in kprobe initialization causing NULL pointer dereference (bsc#1252861).
• CVE-2025-40053: net: dlink: handle copy_thresh allocation failure (bsc#1252808).
• CVE-2025-40081: perf: arm_spe: Prevent overflow in PERF_IDX2OFF() (bsc#1252776).
• CVE-2025-40099: cifs: parse_dfs_referrals: prevent oob on malformed input (bsc#1252911).
• CVE-2025-40102: KVM: arm64: Prevent access to vCPU events before init (bsc#1252919).
• CVE-2025-40103: smb: client: Fix refcount leak for cifs_sb_tlink (bsc#1252924).
• CVE-2025-40123: bpf: Enforce expected_attach_type for tailcall compatibility (bsc#1253365).
• CVE-2025-40134: dm: fix NULL pointer dereference in __dm_suspend() (bsc#1253386).
• CVE-2025-40135: ipv6: use RCU in ip6_xmit() (bsc#1253342).
• CVE-2025-40153: mm: hugetlb: avoid soft lockup when mprotect to large memory area (bsc#1253408).
• CVE-2025-40158: ipv6: use RCU in ip6_output() (bsc#1253402).
• CVE-2025-40160: xen/events: Cleanup find_virq() return codes (bsc#1253400).
• CVE-2025-40167: ext4: detect invalid INLINE_DATA + EXTENTS flag combination (bsc#1253458).
• CVE-2025-40170: net: use dst_dev_rcu() in sk_setup_caps() (bsc#1253413).
• CVE-2025-40178: pid: Add a judgment for ns null in pid_nr_ns (bsc#1253463).
• CVE-2025-40179: ext4: verify orphan file size is not too big (bsc#1253442).
• CVE-2025-40187: net/sctp: fix a null dereference in sctp_disposition sctp_sf_do_5_1D_ce() (bsc#1253647).
• CVE-2025-40190: ext4: guard against EA inode refcount underflow in xattr update (bsc#1253623).
• CVE-2025-40192: Revert "ipmi: fix msg stack when IPMI is disconnected" (bsc#1253622).
• CVE-2025-40220: fuse: fix livelock in synchronous file put from fuseblk workers (bsc#1254520).
• CVE-2025-40231: vsock: fix lock inversion in vsock_assign_transport() (bsc#1254815).
• CVE-2025-40233: ocfs2: clear extent cache after moving/defragmenting extents (bsc#1254813).
• CVE-2025-40238: net/mlx5: Fix IPsec cleanup over MPV device (bsc#1254871).
• CVE-2025-40240: sctp: avoid NULL dereference when chunk data buffer is missing (bsc#1254869).
• CVE-2025-40242: gfs2: Fix unlikely race in gdlm_put_lock (bsc#1255075).
• CVE-2025-40248: vsock: Ignore signal/timeout on connect() if already established (bsc#1254864).
• CVE-2025-40250: net/mlx5: Clean up only new IRQ glue on request_irq() failure (bsc#1254854).
• CVE-2025-40251: devlink: rate: Unset parent pointer in devl_rate_nodes_destroy (bsc#1254856).
• CVE-2025-40252: net: qlogic/qede: fix potential out-of-bounds read in qede_tpa_cont() and qede_tpa_end() (bsc#1254849).
• CVE-2025-40254: net: openvswitch: remove never-working support for setting nsh fields (bsc#1254852).
• CVE-2025-40257: mptcp: fix a race in mptcp_pm_del_add_timer()…

The SUSE Linux Enterprise Micro 6.0 and 6.1 RT kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2023-53817: crypto: lib/mpi - avoid null pointer deref in mpi_cmp_ui() (bsc#1254992).
• CVE-2025-37861: scsi: mpi3mr: Synchronous access b/w reset and tm thread for reply queue (bsc#1243055).
• CVE-2025-38321: smb: Log an error when close_all_cached_dirs fails (bsc#1246328).
• CVE-2025-38728: smb3: fix for slab out of bounds on mount to ksmbd (bsc#1249256).
• CVE-2025-39748: bpf: Forget ranges when refining tnum after JSET (bsc#1249587).
• CVE-2025-39880: libceph: fix invalid accesses to ceph_connection_v1_info (bsc#1250388).
• CVE-2025-39890: wifi: ath12k: fix memory leak in ath12k_service_ready_ext_event (bsc#1250334).
• CVE-2025-39964: crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg (bsc#1251966).
• CVE-2025-39977: futex: Prevent use-after-free during requeue-PI (bsc#1252046).
• CVE-2025-40006: mm/hugetlb: fix folio is still mapped when deleted (bsc#1252342).
• CVE-2025-40024: vhost: Take a reference on the task in struct vhost_task (bsc#1252686).
• CVE-2025-40033: remoteproc: pru: Fix potential NULL pointer dereference in pru_rproc_set_ctable() (bsc#1252824).
• CVE-2025-40042: tracing: Fix race condition in kprobe initialization causing NULL pointer dereference (bsc#1252861).
• CVE-2025-40053: net: dlink: handle copy_thresh allocation failure (bsc#1252808).
• CVE-2025-40081: perf: arm_spe: Prevent overflow in PERF_IDX2OFF() (bsc#1252776).
• CVE-2025-40099: cifs: parse_dfs_referrals: prevent oob on malformed input (bsc#1252911).
• CVE-2025-40102: KVM: arm64: Prevent access to vCPU events before init (bsc#1252919).
• CVE-2025-40103: smb: client: Fix refcount leak for cifs_sb_tlink (bsc#1252924).
• CVE-2025-40123: bpf: Enforce expected_attach_type for tailcall compatibility (bsc#1253365).
• CVE-2025-40134: dm: fix NULL pointer dereference in __dm_suspend() (bsc#1253386).
• CVE-2025-40135: ipv6: use RCU in ip6_xmit() (bsc#1253342).
• CVE-2025-40153: mm: hugetlb: avoid soft lockup when mprotect to large memory area (bsc#1253408).
• CVE-2025-40158: ipv6: use RCU in ip6_output() (bsc#1253402).
• CVE-2025-40160: xen/events: Cleanup find_virq() return codes (bsc#1253400).
• CVE-2025-40167: ext4: detect invalid INLINE_DATA + EXTENTS flag combination (bsc#1253458).
• CVE-2025-40170: net: use dst_dev_rcu() in sk_setup_caps() (bsc#1253413).
• CVE-2025-40178: pid: Add a judgment for ns null in pid_nr_ns (bsc#1253463).
• CVE-2025-40179: ext4: verify orphan file size is not too big (bsc#1253442).
• CVE-2025-40187: net/sctp: fix a null dereference in sctp_disposition sctp_sf_do_5_1D_ce() (bsc#1253647).
• CVE-2025-40190: ext4: guard against EA inode refcount underflow in xattr update (bsc#1253623).
• CVE-2025-40192: Revert "ipmi: fix msg stack when IPMI is disconnected" (bsc#1253622).
• CVE-2025-40220: fuse: fix livelock in synchronous file put from fuseblk workers (bsc#1254520).
• CVE-2025-40231: vsock: fix lock inversion in vsock_assign_transport() (bsc#1254815).
• CVE-2025-40233: ocfs2: clear extent cache after moving/defragmenting extents (bsc#1254813).
• CVE-2025-40238: net/mlx5: Fix IPsec cleanup over MPV device (bsc#1254871).
• CVE-2025-40240: sctp: avoid NULL dereference when chunk data buffer is missing (bsc#1254869).
• CVE-2025-40242: gfs2: Fix unlikely race in gdlm_put_lock (bsc#1255075).
• CVE-2025-40248: vsock: Ignore signal/timeout on connect() if already established (bsc#1254864).
• CVE-2025-40250: net/mlx5: Clean up only new IRQ glue on request_irq() failure (bsc#1254854).
• CVE-2025-40251: devlink: rate: Unset parent pointer in devl_rate_nodes_destroy (bsc#1254856).
• CVE-2025-40252: net: qlogic/qede: fix potential out-of-bounds read in qede_tpa_cont() and qede_tpa_end() (bsc#1254849).
• CVE-2025-40254: net: openvswitch: remove never-working support for setting nsh fields (bsc#1254852).
• CVE-2025-40257: mptcp: fix a race in mptcp_pm_del_add_timer()…