CVE-2023-54198

In the Linux kernel, the following vulnerability has been resolved: tty: fix out-of-bounds access in tty_driver_lookup_tty() When specifying an invalid console= device like console=tty3270, tty_driver_lookup_tty() returns the tty struct without checking whether index is a valid number. To reproduce: qemu-system-x86_64 -enable-kvm -nographic -serial mon:stdio \ -kernel ../linux-build-x86/arch/x86/boot/bzImage \ -append "console=ttyS0 console=tty3270" This crashes with: [ 0.770599] BUG: kernel NULL pointer dereference, address: 00000000000000ef [ 0.771265] #PF: supervisor read access in kernel mode [ 0.771773] #PF: error_code(0x0000) - not-present page [ 0.772609] Oops: 0000 [#1] PREEMPT SMP PTI [ 0.774878] RIP: 0010:tty_open+0x268/0x6f0 [ 0.784013] chrdev_open+0xbd/0x230 [ 0.784444] ? cdev_device_add+0x80/0x80 [ 0.784920] do_dentry_open+0x1e0/0x410 [ 0.785389] path_openat+0xca9/0x1050 [ 0.785813] do_filp_open+0xaa/0x150 [ 0.786240] file_open_name+0x133/0x1b0 [ 0.786746] filp_open+0x27/0x50 [ 0.787244] console_on_rootfs+0x14/0x4d [ 0.787800] kernel_init_freeable+0x1e4/0x20d [ 0.788383] ? rest_init+0xc0/0xc0 [ 0.788881] kernel_init+0x11/0x120 [ 0.789356] ret_from_fork+0x22/0x30

In the Linux kernel, the following vulnerability has been resolved: tty: fix out-of-bounds access in tty_driver_lookup_tty() When specifying an invalid console= device like console=tty3270, tty_driver_lookup_tty() returns the tty struct without checking whether index is a valid number. To reproduce: qemu-system-x86_64 -enable-kvm -nographic -serial mon:stdio \ -kernel ../linux-build-x86/arch/x86/boot/bzImage \ -append "console=ttyS0 console=tty3270" This crashes with: [ 0.770599] BUG: kernel NULL pointer dereference, address: 00000000000000ef [ 0.771265] #PF: supervisor read access in kernel mode [ 0.771773] #PF: error_code(0x0000) - not-present page [ 0.772609] Oops: 0000 [#1] PREEMPT SMP PTI [ 0.774878] RIP: 0010:tty_open+0x268/0x6f0 [ 0.784013] chrdev_open+0xbd/0x230 [ 0.784444] ? cdev_device_add+0x80/0x80 [ 0.784920] do_dentry_open+0x1e0/0x410 [ 0.785389] path_openat+0xca9/0x1050 [ 0.785813] do_filp_open+0xaa/0x150 [ 0.786240] file_open_name+0x133/0x1b0 [ 0.786746] filp_open+0x27/0x50 [ 0.787244] console_on_rootfs+0x14/0x4d [ 0.787800] kernel_init_freeable+0x1e4/0x20d [ 0.788383] ? rest_init+0xc0/0xc0 [ 0.788881] kernel_init+0x11/0x120 [ 0.789356] ret_from_fork+0x22/0x30

• atm: lec: fix use-after-free in sock_def_readable() {CVE-2026-43050}
• ALSA: usb-audio: Use the right limit for PCM OOB check
• ALSA: usb-audio: Prevent excessive number of frames {CVE-2026-23208}
• xen/privcmd: fix double free via VMA splitting {CVE-2026-31787}
• cpufreq: governor: fix double free in cpufreq_dbs_governor_init() error path {CVE-2026-43328}
• cpufreq: governor: Free dbs_data directly when gov->init() fails {CVE-2026-43328}
• rcu: Fix rcu_read_unlock() deadloop due to softirq
• rcu: Fix racy re-initialization of irq_work causing hangs
• RDMA/efa: Fix possible deadlock {CVE-2026-31493}
• RDMA/efa: Fix use of completion ctx after free {CVE-2026-31493}
• RDMA/efa: Improve admin completion context state machine {CVE-2026-31493}
• RDMA/efa: Check stored completion CTX command ID with received one {CVE-2026-31493}
• RDMA/efa: Extend admin timeout error print
• RDMA/efa: Properly handle unexpected AQ completions {CVE-2026-31493}
• rcu: Fix rcu_read_unlock() deadloop due to IRQ work {CVE-2025-39744}
• netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() {CVE-2026-23455}
• rtnetlink: Allocate vfinfo size for VF GUIDs when supported {CVE-2025-22075}
• kernel/printk/index.c: fix memory leak with using debugfs_lookup() {CVE-2023-53402}
• wifi: iwlwifi: don't warn when if there is a FW error {CVE-2025-38096}
• md/raid5-cache: fix null-ptr-deref for r5l_flush_stripe_to_raid() {CVE-2023-53210}
• exfat: fix the infinite loop in exfat_readdir() {CVE-2024-57940}
• af_netlink: Fix shift out of bounds in group mask calculation {CVE-2022-49197}
• xfrm_user: fix info leak in build_mapping() {CVE-2026-43089}
• udf: Fix preallocation discarding at indirect extent boundary {CVE-2022-48946}
• efi: Do not import certificates from UEFI Secure Boot for T2 Macs {CVE-2022-49357}
• kernel/resource: fix kfree() of bootmem memory again {CVE-2022-49190}
• smb: client: fix warning in cifs_smb3_do_mount() {CVE-2023-53230}
• sctp: Fix null-ptr-deref in reuseport_add_sock(). {CVE-2024-44935}
• RDMA/bnxt_re: Fix a bug while setting up Level-2 PBL pages {CVE-2024-50208}
• drm/amdgpu: avoid using null object of framebuffer {CVE-2024-41093}
• firmware: cs_dsp: Return error if block header overflows file {CVE-2024-42238}
• ata: libata-sff: Ensure that we cannot write outside the allocated buffer {CVE-2025-21738}
• net: hinic: fix memory leak when reading function table {CVE-2022-50438}
• device property: fix of node refcount leak in fwnode_graph_get_next_endpoint() {CVE-2022-49752}
• libceph: fix race between delayed_work() and ceph_monc_stop() {CVE-2024-42232}
• usbnet: fix memory leak in error case {CVE-2022-49657}
• hwmon: (w83791d) Convert macros to functions to avoid TOCTOU {CVE-2025-71111}
• seccomp: Move copy_seccomp() to no failure path. {CVE-2022-50661}
• net/mlx5: fs, lock FTE when checking if active {CVE-2024-53121}
• nvme-pci: fix freeing of the HMB descriptor table {CVE-2024-56756}
• leds: class: Protect brightness_show() with led_cdev->led_access mutex {CVE-2024-56587}
• bpf, sockmap: Check for any of tcp_bpf_prots when cloning a listener {CVE-2023-52986}
• RDMA/uverbs: Prevent integer overflow issue {CVE-2024-57890}
• sctp: move SCTP_CMD_ASSOC_SHKEY right after SCTP_CMD_PEER_INIT {CVE-2026-23125}
• tracing: Fix memory leak in test_gen_synth_cmd() and test_empty_synth_event() {CVE-2022-49800}
• kprobes: Fix check for probe enabled in kill_kprobe() {CVE-2022-50266}
• NFSv4.2: fix nfs4_listxattr kernel BUG at mm/usercopy.c:102 {CVE-2024-26870}
• i915/perf: Fix NULL deref bugs with drm_dbg() calls {CVE-2023-52788}
• can: mcp251x: fix deadlock in error path of mcp251x_open {CVE-2026-23357}
• regmap-irq: Use the new num_config_regs property in regmap_add_irq_chip_fwnode {CVE-2022-50558}
• wifi: cfg80211: Set correct chandef when starting CAC {CVE-2024-49937}
• netfilter: nf_tables: prevent nf_skb_duplicated corruption {CVE-2024-49952}
• can: isotp: fix potential CAN frame reception race in isotp_rcv() {CVE-2022-48830}
• bpf: Fix…

The SUSE Linux Enterprise 15 SP5 RT kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2022-50630: mm: hugetlb: fix UAF in hugetlb_handle_userfault (bsc#1254785).
• CVE-2022-50700: wifi: ath10k: Delay the unmapping of the buffer (bsc#1255576).
• CVE-2023-53254: cacheinfo: Fix shared_cpu_map to handle shared caches at different levels (bsc#1249871).
• CVE-2023-53781: smc: Fix use-after-free in tcp_write_timer_handler() (bsc#1254751).
• CVE-2024-56590: Bluetooth: hci_core: Fix not checking skb length on hci_acldata_packet (bsc#1235038).
• CVE-2025-39977: futex: Prevent use-after-free during requeue-PI (bsc#1252046).
• CVE-2025-40019: crypto: essiv - Check ssize for decryption and in-place encryption (bsc#1252678).
• CVE-2025-40139: net: ipv4: Consolidate ipv4_mtu and ip_dst_mtu_maybe_forward (bsc#1253409).
• 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-2025-40258: mptcp: fix race condition in mptcp_schedule_work() (bsc#1254843).
• CVE-2025-40277: drm/vmwgfx: Validate command header size against (bsc#1254894).
• CVE-2025-40280: tipc: Fix use-after-free in tipc_mon_reinit_self() (bsc#1254847).
• CVE-2025-40331: sctp: Prevent TOCTOU out-of-bounds write (bsc#1254615).
• CVE-2025-68732: gpu: host1x: Fix race in syncpt alloc/free (bsc#1255688).

The following non security issues were fixed:

• ACPI/IORT: Fix memory leak in iort_rmr_alloc_sids() (git-fixes).
• ACPI: PRM: Remove unnecessary strict handler address checks (git-fixes).
• ACPI: property: Do not pass NULL handles to acpi_attach_data() (git-fixes).
• ACPI: property: Fix buffer properties extraction for subnodes (git-fixes).
• KVM: SVM: Fix TSC_AUX virtualization setup (git-fixes).
• RDMA/cm: Rate limit destroy CM ID timeout error message (git-fixes).
• RDMA/counter: Check CAP_NET_RAW check in user namespace for RDMA counters (git-fixes).
• RDMA/hns: Fix the modification of max_send_sge (git-fixes).
• RDMA/mlx5: Check CAP_NET_RAW in user namespace for anchor create (git-fixes).
• RDMA/mlx5: Check CAP_NET_RAW in user namespace for devx create (git-fixes).
• RDMA/mlx5: Check CAP_NET_RAW in user namespace for flow create (git-fixes).
• RDMA/mlx5: Fix compilation warning when USER_ACCESS isn't set (git-fixes).
• RDMA/nldev: Check CAP_NET_RAW in user namespace for QP modify (git-fixes).
• RDMA/uverbs: Add empty rdma_uattrs_has_raw_cap() declaration (git-fixes).
• RDMA/uverbs: Check CAP_NET_RAW in user namespace for QP create (git-fixes).
• RDMA/uverbs: Check CAP_NET_RAW in user namespace for RAW QP create (git-fixes).
• RDMA/uverbs: Check CAP_NET_RAW in user namespace for flow create (git-fixes).
• arch/idle: Change arch_cpu_idle() behavior: always exit with IRQs disabled (git-fixes).
• cpuidle/poll: Ensure IRQs stay disabled after cpuidle_state::enter() calls (git-fixes).
• cpuidle: Move IRQ state validation (git-fixes).
• cpuidle: haltpoll: Do not enable interrupts when entering idle (git-fixes).
• dm: free table mempools if not used in __bind (git-fixes).
• padata: Honor the caller's alignment in case of chunk_size 0 (bsc#1237563).
• platform/x86/intel-uncore-freq: Fail module load when plat_info is NULL (git-fixes).
• x86/bugs: Fix RSB clearing in indirect_branch_prediction_barrier() (git-fixes).
• x86/bugs: Use SBPB in write_ibpb() if applicable (git-fixes).
• x86/paravirt: Move halt paravirt calls under CONFIG_PARAVIRT (git-fixes).
• x86/tdx: Drop flags from __tdx_hypercall() (git-fixes).
• x86/tdx: Dynamically disable SEPT violations from causing #VEs (git-fixes).
• x86/tdx: Emit warning if IRQs are enabled during HLT #VE handling (git-fixes).
• x86/tdx: Extend TDX_MODULE_CALL to support more TDCALL/SEAMCALL leafs (git-fixes).
• x86/tdx: Fix __noreturn build warning around __tdx_hypercall_failed()…

The SUSE Linux Enterprise 15 SP5 kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2022-50630: mm: hugetlb: fix UAF in hugetlb_handle_userfault (bsc#1254785).
• CVE-2022-50700: wifi: ath10k: Delay the unmapping of the buffer (bsc#1255576).
• CVE-2023-53254: cacheinfo: Fix shared_cpu_map to handle shared caches at different levels (bsc#1249871).
• CVE-2023-53781: smc: Fix use-after-free in tcp_write_timer_handler() (bsc#1254751).
• CVE-2024-56590: Bluetooth: hci_core: Fix not checking skb length on hci_acldata_packet (bsc#1235038).
• CVE-2025-39977: futex: Prevent use-after-free during requeue-PI (bsc#1252046).
• CVE-2025-40019: crypto: essiv - Check ssize for decryption and in-place encryption (bsc#1252678).
• CVE-2025-40139: smc: Use __sk_dst_get() and dst_dev_rcu() in in smc_clc_prfx_set() (bsc#1253409).
• 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-2025-40258: mptcp: fix race condition in mptcp_schedule_work() (bsc#1254843).
• CVE-2025-40277: drm/vmwgfx: Validate command header size against (bsc#1254894).
• CVE-2025-40280: tipc: Fix use-after-free in tipc_mon_reinit_self() (bsc#1254847).
• CVE-2025-40331: sctp: Prevent TOCTOU out-of-bounds write (bsc#1254615).
• CVE-2025-68732: gpu: host1x: Fix race in syncpt alloc/free (bsc#1255688).

The following non security issues were fixed:

• ACPI/IORT: Fix memory leak in iort_rmr_alloc_sids() (git-fixes).
• ACPI: PRM: Remove unnecessary strict handler address checks (git-fixes).
• ACPI: property: Do not pass NULL handles to acpi_attach_data() (git-fixes).
• ACPI: property: Fix buffer properties extraction for subnodes (git-fixes).
• KVM: SVM: Fix TSC_AUX virtualization setup (git-fixes).
• RDMA/cm: Rate limit destroy CM ID timeout error message (git-fixes).
• RDMA/counter: Check CAP_NET_RAW check in user namespace for RDMA counters (git-fixes).
• RDMA/hns: Fix the modification of max_send_sge (git-fixes).
• RDMA/mlx5: Check CAP_NET_RAW in user namespace for anchor create (git-fixes).
• RDMA/mlx5: Check CAP_NET_RAW in user namespace for devx create (git-fixes).
• RDMA/mlx5: Check CAP_NET_RAW in user namespace for flow create (git-fixes).
• RDMA/mlx5: Fix compilation warning when USER_ACCESS isn't set (git-fixes).
• RDMA/nldev: Check CAP_NET_RAW in user namespace for QP modify (git-fixes).
• RDMA/uverbs: Add empty rdma_uattrs_has_raw_cap() declaration (git-fixes).
• RDMA/uverbs: Check CAP_NET_RAW in user namespace for QP create (git-fixes).
• RDMA/uverbs: Check CAP_NET_RAW in user namespace for RAW QP create (git-fixes).
• RDMA/uverbs: Check CAP_NET_RAW in user namespace for flow create (git-fixes).
• arch/idle: Change arch_cpu_idle() behavior: always exit with IRQs disabled (git-fixes).
• cpuidle/poll: Ensure IRQs stay disabled after cpuidle_state::enter() calls (git-fixes).
• cpuidle: Move IRQ state validation (git-fixes).
• cpuidle: haltpoll: Do not enable interrupts when entering idle (git-fixes).
• dm: free table mempools if not used in __bind (git-fixes).
• padata: Honor the caller's alignment in case of chunk_size 0 (bsc#1237563).
• platform/x86/intel-uncore-freq: Fail module load when plat_info is NULL (git-fixes).
• x86/bugs: Fix RSB clearing in indirect_branch_prediction_barrier() (git-fixes).
• x86/bugs: Use SBPB in write_ibpb() if applicable (git-fixes).
• x86/paravirt: Move halt paravirt calls under CONFIG_PARAVIRT (git-fixes).
• x86/tdx: Drop flags from __tdx_hypercall() (git-fixes).
• x86/tdx: Dynamically disable SEPT violations from causing #VEs (git-fixes).
• x86/tdx: Emit warning if IRQs are enabled during HLT #VE handling (git-fixes).
• x86/tdx: Extend TDX_MODULE_CALL to support more TDCALL/SEAMCALL leafs (git-fixes).
• x86/tdx: Fix __noreturn build warning around __tdx_hypercall_failed()…

The SUSE Linux Enterprise 15 SP4 RT kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2022-50630: mm: hugetlb: fix UAF in hugetlb_handle_userfault (bsc#1254785).
• CVE-2022-50697: mrp: introduce active flags to prevent UAF when applicant uninit (bsc#1255594).
• CVE-2022-50700: wifi: ath10k: Delay the unmapping of the buffer (bsc#1255576).
• CVE-2023-53215: sched/fair: Don't balance task to its current running CPU (bsc#1250397).
• CVE-2023-53254: cacheinfo: Fix shared_cpu_map to handle shared caches at different levels (bsc#1249871).
• CVE-2023-53781: smc: Fix use-after-free in tcp_write_timer_handler() (bsc#1254751).
• CVE-2023-54142: gtp: Fix use-after-free in __gtp_encap_destroy() (bsc#1256095).
• CVE-2023-54243: netfilter: ebtables: fix table blob use-after-free (bsc#1255908).
• CVE-2024-28956: x86/its: Enumerate Indirect Target Selection (ITS) bug (bsc#1242006).
• CVE-2024-36348: x86/bugs: Add a Transient Scheduler Attacks mitigation (bsc#1238896).
• CVE-2024-36349: x86/bugs: Add a Transient Scheduler Attacks mitigation (bsc#1238896).
• CVE-2024-36350: x86/bugs: Add a Transient Scheduler Attacks mitigation (bsc#1238896).
• CVE-2024-36357: x86/bugs: Add a Transient Scheduler Attacks mitigation (bsc#1238896).
• CVE-2024-44987: ipv6: prevent UAF in ip6_send_skb() (bsc#1230185).
• CVE-2025-38068: crypto: lzo - Fix compression buffer overrun (bsc#1245210).
• CVE-2025-38129: page_pool: fix inconsistency for page_pool_ring_lock() (bsc#1245723).
• CVE-2025-38159: wifi: rtw88: fix the 'para' buffer size to avoid reading out of bounds (bsc#1245751).
• CVE-2025-38375: virtio-net: ensure the received length does not exceed allocated size (bsc#1247177).
• CVE-2025-39977: futex: Prevent use-after-free during requeue-PI (bsc#1252046).
• CVE-2025-40019: crypto: essiv - Check ssize for decryption and in-place encryption (bsc#1252678).
• CVE-2025-40139: net: ipv4: Consolidate ipv4_mtu and ip_dst_mtu_maybe_forward (bsc#1253409).
• 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-2025-40257: 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-2025-40277: drm/vmwgfx: Validate command header size against (bsc#1254894).
• CVE-2025-40280: tipc: Fix use-after-free in tipc_mon_reinit_self() (bsc#1254847).
• CVE-2025-40300: Documentation/hw-vuln: Add VMSCAPE documentation (bsc#1247483).
• CVE-2025-40331: sctp: Prevent TOCTOU out-of-bounds write (bsc#1254615).
• CVE-2025-68183: ima: don't clear IMA_DIGSIG flag when setting or removing non-IMA xattr (bsc#1255251).
• CVE-2025-68284: libceph: prevent potential out-of-bounds writes in handle_auth_session_key() (bsc#1255377).
• CVE-2025-68285: libceph: fix potential use-after-free in have_mon_and_osd_map() (bsc#1255401).
• CVE-2025-68732: gpu: host1x: Fix race in syncpt alloc/free (bsc#1255688).
• CVE-2025-68771: ocfs2: fix kernel BUG in ocfs2_find_victim_chain (bsc#1256582).
• CVE-2025-68813: ipvs: fix ipv4 null-ptr-deref in route error path (bsc#1256641).
• CVE-2025-71089: iommu: disable SVA when CONFIG_X86 is set (bsc#1256612).
• CVE-2025-71116: libceph: make decode_pool() more resilient against corrupted osdmaps (bsc#1256744).
• CVE-2025-71120: SUNRPC: svcauth_gss: avoid NULL deref on zero length gss_token in gss_read_proxy_verf (bsc#1256779).

The following non security issues were fixed:

• x86/CPU/AMD: Add ZenX generations flags (bsc#1238896).
• x86: make page fault handling disable interrupts properly (git-fixes).

The SUSE Linux Enterprise 12 SP5 kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2022-50347: mmc: rtsx_usb_sdmmc: fix return value check of mmc_add_host() (bsc#1249928).
• CVE-2022-50580: blk-throttle: prevent overflow while calculating wait time (bsc#1252542).
• CVE-2022-50676: net: rds: don't hold sock lock when cancelling work from rds_tcp_reset_callbacks() (bsc#1254689).
• CVE-2022-50697: mrp: introduce active flags to prevent UAF when applicant uninit (bsc#1255594).
• CVE-2022-50709: wifi: ath9k: avoid uninit memory read in ath9k_htc_rx_msg() (bsc#1255565).
• CVE-2022-50716: wifi: ar5523: Fix use-after-free on ar5523_cmd() timed out (bsc#1255839).
• CVE-2022-50717: nvmet-tcp: add bounds check on Transfer Tag (bsc#1255844).
• CVE-2022-50719: ALSA: line6: fix stack overflow in line6_midi_transmit (bsc#1255939).
• CVE-2022-50740: wifi: ath9k: hif_usb: fix memory leak of urbs in ath9k_hif_usb_dealloc_tx_urbs() (bsc#1256155).
• CVE-2022-50744: scsi: lpfc: Fix hard lockup when reading the rx_monitor from debugfs (bsc#1256165).
• CVE-2022-50749: acct: fix potential integer overflow in encode_comp_t() (bsc#1256191).
• CVE-2022-50751: configfs: fix possible memory leak in configfs_create_dir() (bsc#1256184).
• CVE-2022-50760: drm/amdgpu: Fix PCI device refcount leak in amdgpu_atrm_get_bios() (bsc#1255983).
• CVE-2022-50770: ocfs2: fix memory leak in ocfs2_mount_volume() (bsc#1256221).
• CVE-2022-50777: net: phy: xgmiitorgmii: Fix refcount leak in xgmiitorgmii_probe (bsc#1256320).
• CVE-2022-50780: net: fix UAF issue in nfqnl_nf_hook_drop() when ops_init() failed (bsc#1256305).
• CVE-2022-50782: ext4: fix bug_on in __es_tree_search caused by bad quota inode (bsc#1256282).
• CVE-2022-50786: media: s5p-mfc: Clear workbit to handle error condition (bsc#1256258).
• CVE-2022-50816: ipv6: ensure sane device mtu in tunnels (bsc#1256038).
• CVE-2022-50834: nfc: Fix potential resource leaks (bsc#1256219).
• CVE-2022-50865: tcp: fix a signed-integer-overflow bug in tcp_add_backlog() (bsc#1256168).
• CVE-2022-50868: hwrng: amd - Fix PCI device refcount leak (bsc#1256386).
• CVE-2022-50880: wifi: ath10k: add peer map clean up for peer delete in ath10k_sta_state() (bsc#1256132).
• CVE-2022-50881: ath9k: Fix typo in function name (bsc#1256130).
• CVE-2022-50884: drm: Prevent drm_copy_field() to attempt copying a NULL pointer (bsc#1256127).
• CVE-2022-50885: RDMA/rxe: Fix NULL-ptr-deref in rxe_qp_do_cleanup() when socket create failed (bsc#1256122).
• CVE-2022-50887: regulator: core: fix unbalanced of node refcount in regulator_dev_lookup() (bsc#1256125).
• CVE-2023-50756: nvme-pci: fix mempool alloc size (bsc#1256216).
• CVE-2023-53685: tun: Fix memory leak for detached NAPI queue (bsc#1251770).
• CVE-2023-53747: vc_screen: reload load of struct vc_data pointer in vcs_write() to avoid UAF (bsc#1254572).
• CVE-2023-53751: cifs: fix potential use-after-free bugs in TCP_Server_Info::hostname (bsc#1254986).
• CVE-2023-53825: kcm: Fix error handling for SOCK_DGRAM in kcm_sendmsg() (bsc#1254707).
• CVE-2023-53853: netlink: annotate accesses to nlk->cb_running (bsc#1254673).
• CVE-2023-53863: netlink: do not hard code device address lenth in fdb dumps (bsc#1254657).
• CVE-2023-53992: wifi: cfg80211: ocb: don't leave if not joined (bsc#1256058).
• CVE-2023-54012: net: fix stack overflow when LRO is disabled for virtual interfaces (bsc#1255571).
• CVE-2023-54047: drm/rockchip: dw_hdmi: cleanup drm encoder during unbind (bsc#1256398).
• CVE-2023-54048: RDMA/bnxt_re: Prevent handling any completions after qp destroy (bsc#1256395).
• CVE-2023-54067: btrfs: fix race when deleting free space root from the dirty cow roots list (bsc#1256369).
• CVE-2023-54111: pinctrl: rockchip: Fix refcount leak in rockchip_pinctrl_parse_groups (bsc#1256149).
• CVE-2023-54112: kcm: Fix memory leak in error path of kcm_sendmsg() (bsc#1256354).
• CVE-2023-54118: serial: sc16is7xx: setup GPIO controller later in probe…

The SUSE Linux Enterprise 15 SP4 kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2022-50630: mm: hugetlb: fix UAF in hugetlb_handle_userfault (bsc#1254785).
• CVE-2022-50697: mrp: introduce active flags to prevent UAF when applicant uninit (bsc#1255594).
• CVE-2022-50700: wifi: ath10k: Delay the unmapping of the buffer (bsc#1255576).
• CVE-2023-53215: sched/fair: Don't balance task to its current running CPU (bsc#1250397).
• CVE-2023-53254: cacheinfo: Fix shared_cpu_map to handle shared caches at different levels (bsc#1249871).
• CVE-2023-53781: smc: Fix use-after-free in tcp_write_timer_handler() (bsc#1254751).
• CVE-2023-54142: gtp: Fix use-after-free in __gtp_encap_destroy() (bsc#1256095).
• CVE-2023-54243: netfilter: ebtables: fix table blob use-after-free (bsc#1255908).
• CVE-2024-28956: x86/its: Enumerate Indirect Target Selection (ITS) bug (bsc#1242006).
• CVE-2024-36348: x86/bugs: Add a Transient Scheduler Attacks mitigation (bsc#1238896).
• CVE-2024-36349: x86/bugs: Add a Transient Scheduler Attacks mitigation (bsc#1238896).
• CVE-2024-36350: x86/bugs: Add a Transient Scheduler Attacks mitigation (bsc#1238896).
• CVE-2024-36357: x86/bugs: Add a Transient Scheduler Attacks mitigation (bsc#1238896).
• CVE-2024-44987: ipv6: prevent UAF in ip6_send_skb() (bsc#1230185).
• CVE-2024-46854: net: dpaa: Pad packets to ETH_ZLEN (bsc#1231084).
• CVE-2025-21738: ata: libata-sff: Ensure that we cannot write outside the allocated buffer (bsc#1238917).
• CVE-2025-38068: crypto: lzo - Fix compression buffer overrun (bsc#1245210).
• CVE-2025-38129: page_pool: fix inconsistency for page_pool_ring_lock() (bsc#1245723).
• CVE-2025-38159: wifi: rtw88: fix the 'para' buffer size to avoid reading out of bounds (bsc#1245751).
• CVE-2025-38375: virtio-net: ensure the received length does not exceed allocated size (bsc#1247177).
• CVE-2025-39977: futex: Prevent use-after-free during requeue-PI (bsc#1252046).
• CVE-2025-40019: crypto: essiv - Check ssize for decryption and in-place encryption (bsc#1252678).
• CVE-2025-40139: net: ipv4: Consolidate ipv4_mtu and ip_dst_mtu_maybe_forward (bsc#1253409).
• 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-2025-40257: 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-2025-40277: drm/vmwgfx: Validate command header size against (bsc#1254894).
• CVE-2025-40280: tipc: Fix use-after-free in tipc_mon_reinit_self() (bsc#1254847).
• CVE-2025-40300: Documentation/hw-vuln: Add VMSCAPE documentation (bsc#1247483).
• CVE-2025-40331: sctp: Prevent TOCTOU out-of-bounds write (bsc#1254615).
• CVE-2025-68183: ima: don't clear IMA_DIGSIG flag when setting or removing non-IMA xattr (bsc#1255251).
• CVE-2025-68284: libceph: prevent potential out-of-bounds writes in handle_auth_session_key() (bsc#1255377).
• CVE-2025-68285: libceph: fix potential use-after-free in have_mon_and_osd_map() (bsc#1255401).
• CVE-2025-68312: usbnet: Prevents free active kevent (bsc#1255171).
• CVE-2025-68732: gpu: host1x: Fix race in syncpt alloc/free (bsc#1255688).
• CVE-2025-68813: ipvs: fix ipv4 null-ptr-deref in route error path (bsc#1256641).
• CVE-2025-71085: ipv6: BUG() in pskb_expand_head() as part of calipso_skbuff_setattr() (bsc#1256623).
• CVE-2025-71089: iommu: disable SVA when CONFIG_X86 is set (bsc#1256612).
• CVE-2025-71112: net: hns3: add VLAN id validation before using (bsc#1256726).
• CVE-2025-71116: libceph: make decode_pool() more resilient against corrupted osdmaps (bsc#1256744).
• CVE-2025-71120: SUNRPC: svcauth_gss: avoid NULL deref on zero length gss_token in gss_read_proxy_verf (bsc#1256779).
• CVE-2026-22999: net/sched: sch_qfq: do not free…