CVE-2022-49675

In the Linux kernel, the following vulnerability has been resolved: tick/nohz: unexport __init-annotated tick_nohz_full_setup() EXPORT_SYMBOL and __init is a bad combination because the .init.text section is freed up after the initialization. Hence, modules cannot use symbols annotated __init. The access to a freed symbol may end up with kernel panic. modpost used to detect it, but it had been broken for a decade. Commit 28438794aba4 ("modpost: fix section mismatch check for exported init/exit sections") fixed it so modpost started to warn it again, then this showed up: MODPOST vmlinux.symvers WARNING: modpost: vmlinux.o(___ksymtab_gpl+tick_nohz_full_setup+0x0): Section mismatch in reference from the variable __ksymtab_tick_nohz_full_setup to the function .init.text:tick_nohz_full_setup() The symbol tick_nohz_full_setup is exported and annotated __init Fix this by removing the __init annotation of tick_nohz_full_setup or drop the export. Drop the export because tick_nohz_full_setup() is only called from the built-in code in kernel/sched/isolation.c.

• KVM: x86: Fix shadow paging use-after-free due to unexpected role {CVE-2026-46113}
• KVM: x86: Fix shadow paging use-after-free due to unexpected GFN {CVE-2026-46113}
• Bluetooth: bcsp: receive data only if registered {CVE-2025-40308}
• xen/privcmd: unregister xenstore notifier on module exit {CVE-2026-31788}
• xen/privcmd: restrict usage in unprivileged domU {CVE-2026-31788}
• USB: usbtmc: Use usb_bulk_msg_killable() with user-specified timeouts {CVE-2026-43429}
• net: usb: rtl8150: enable basic endpoint checking {CVE-2025-21708}
• net: usb: kaweth: validate USB endpoints {CVE-2026-23312}
• net: usb: kalmia: validate USB endpoints {CVE-2026-23365}
• net: usb: pegasus: validate USB endpoints {CVE-2026-23290}
• net: usb: pegasus: enable basic endpoint checking {CVE-2026-43156}
• USB: usbcore: Introduce usb_bulk_msg_killable() {CVE-2026-43429}
• USB: core: Add routines for endpoint checks in old drivers {CVE-2026-43156}
• nf_tables: nft_dynset: fix possible stateful expression memleak in error path {CVE-2026-23399}
• tpm: Cap the number of PCR banks {CVE-2025-71077}
• clk: imx: clk-imx8mp: improve error handling in imx8mp_clocks_probe() {CVE-2023-53704}
• dm: fix a race condition in retrieve_deps {CVE-2023-54324}
• ice: fix Tx scheduler error handling in XDP callback {CVE-2025-38127}
• mlx5: fix skb leak while fifo resync and push {CVE-2023-54238}
• mmc: vub300: fix return value check of mmc_add_host() {CVE-2022-50251}
• bonding: annotate data-races around slave->last_rx {CVE-2026-23212}
• RDMA/irdma: Fix data race on CQP completion stats {CVE-2023-54302}
• bpf: cpumap: Fix memory leak in cpu_map_update_elem {CVE-2023-53441}
• fbdev: Fix do_register_framebuffer to prevent null-ptr-deref in fb_videomode_to_var {CVE-2025-38215}
• trace/fgraph: Fix the warning caused by missing unregister notifier {CVE-2025-39829}
• vxlan: Fix NPD in {arp,neigh}_reduce() when using nexthop objects {CVE-2025-39850}
• team: prevent adding a device which is already a team device lower {CVE-2024-58071}
• net: stmmac: move the EST lock to struct stmmac_priv {CVE-2024-38594}
• drm/amd/display: Disable PSR-SU on Parade 08-01 TCON too {CVE-2024-50108}
• rxrpc: Fix handling of received connection abort {CVE-2024-58053}
• bnxt_en: Fix out-of-bound memcpy() during ethtool -w {CVE-2025-37911}
• scsi: storvsc: Ratelimit warning logs to prevent VM denial of service {CVE-2025-21690}
• net: atlantic: Fix DMA mapping for PTP hwts ring {CVE-2024-26680}
• wifi: mac80211: use two-phase skb reclamation in ieee80211_do_stop() {CVE-2024-47713}
• drm/amd/display: Add null check for 'afb' in amdgpu_dm_plane_handle_cursor_update (v2) {CVE-2024-49905}
• dm: fix NULL pointer dereference in __dm_suspend() {CVE-2025-40134}
• smb: client: validate the whole DACL before rewriting it in cifsacl {CVE-2026-31709}
• PM: runtime: Fix a race condition related to device removal {CVE-2026-23452}
• ALSA: usb-audio: Check endpoint numbers at parsing Scarlett2 mixer interfaces {CVE-2026-43436}
• nvme-pci: Fix race bug in nvme_poll_irqdisable() {CVE-2026-43448}
• sctp: add mutual exclusion in proc_sctp_do_udp_port() {CVE-2025-22062}
• cachefiles: fix dentry leak in cachefiles_open_file() {CVE-2024-49870}
• mm: revert "mm: shmem: fix data-race in shmem_getattr()" {CVE-2024-53136}
• memcg: fix soft lockup in the OOM process {CVE-2024-57977}
• resource: fix region_intersects() vs add_memory_driver_managed() {CVE-2024-49878}
• r8169: add tally counter fields added with RTL8125 {CVE-2024-49973}
• svcrdma: fix miss destroy percpu_counter in svc_rdma_proc_init() {CVE-2024-53215}
• ext4: fix iloc.bh leak in ext4_fc_replay_inode() error paths {CVE-2026-43066}
• wifi: rtw88: Use devm_kmemdup() in rtw_set_supported_band() {CVE-2025-71273}
• net: netlink: af_netlink: Prevent empty skb by adding a check on len. {CVE-2021-47606}
• extcon: Modify extcon device to be created after driver data is set {CVE-2022-49308}
• tick/nohz: unexport __init-annotated tick_nohz_full_setup() {CVE-2022-49675}
• bridge:…

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

tick/nohz: unexport __init-annotated tick_nohz_full_setup()

EXPORT_SYMBOL and __init is a bad combination because the .init.text section is freed up after the initialization. Hence, modules cannot use symbols annotated __init. The access to a freed symbol may end up with kernel panic.

modpost used to detect it, but it had been broken for a decade.

Commit 28438794aba4 ("modpost: fix section mismatch check for exported init/exit sections") fixed it so modpost started to warn it again, then this showed up:

MODPOST vmlinux.symvers

WARNING: modpost: vmlinux.o(___ksymtab_gpl+tick_nohz_full_setup+0x0): Section mismatch in reference from the variable __ksymtab_tick_nohz_full_setup to the function .init.text:tick_nohz_full_setup() The symbol tick_nohz_full_setup is exported and annotated __init Fix this by removing the __init annotation of tick_nohz_full_setup or drop the export.

Drop the export because tick_nohz_full_setup() is only called from the built-in code in kernel/sched/isolation.c.

The SUSE Linux Enterprise 15 SP4 kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2024-2201: Fixed information leak in x86/BHI (bsc#1217339).
• CVE-2024-41092: drm/i915/gt: Fix potential UAF by revoke of fence registers (bsc#1228483).
• CVE-2024-42098: crypto: ecdh - explicitly zeroize private_key (bsc#1228779).
• CVE-2024-42229: crypto: aead,cipher - zeroize key buffer after use (bsc#1228708).
• CVE-2024-57996: net_sched: sch_sfq: do not allow 1 packet limit (bsc#1239076).
• CVE-2024-58014: wifi: brcmsmac: add gain range check to wlc_phy_iqcal_gainparams_nphy() (bsc#1239109).
• CVE-2025-21718: net: rose: fix timer races against user threads (bsc#1239073).
• CVE-2025-21780: drm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table() (bsc#1239115).

The following non-security bugs were fixed:

• initcall_blacklist: Does not allow kernel_lockdown be blacklisted (bsc#1237521).
• x86/bhi: Avoid warning in #DB handler due to BHI mitigation (git-fixes).
• x86/bugs: Cache the value of MSR_IA32_ARCH_CAPABILITIES (git-fixes).
• x86/bugs: Fix BHI documentation (git-fixes).
• x86/bugs: Fix BHI handling of RRSBA (git-fixes).
• x86/bugs: Fix BHI retpoline check (git-fixes).
• x86/bugs: Fix return type of spectre_bhi_state() (git-fixes).
• x86/bugs: Remove CONFIG_BHI_MITIGATION_AUTO and spectre_bhi=auto (git-fixes).

The SUSE Linux Enterprise 15 SP5 RT kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2022-49053: scsi: target: tcmu: Fix possible page UAF (bsc#1237918).
• CVE-2022-49465: blk-throttle: Set BIO_THROTTLED when bio has been throttled (bsc#1238919).
• CVE-2022-49739: gfs2: Always check inode size of inline inodes (bsc#1240207).
• CVE-2023-52935: mm/khugepaged: fix ->anon_vma race (bsc#1240276).
• CVE-2024-53124: net: fix data-races around sk->sk_forward_alloc (bsc#1234074).
• CVE-2024-53176: smb: During unmount, ensure all cached dir instances drop their dentry (bsc#1234894).
• CVE-2024-53178: smb: Do not leak cfid when reconnect races with open_cached_dir (bsc#1234895).
• CVE-2024-56651: can: hi311x: hi3110_can_ist(): fix potential use-after-free (bsc#1235528).
• CVE-2024-57996: net_sched: sch_sfq: do not allow 1 packet limit (bsc#1239076).
• CVE-2024-58013: Bluetooth: MGMT: Fix slab-use-after-free Read in mgmt_remove_adv_monitor_sync (bsc#1239095).
• CVE-2024-58014: wifi: brcmsmac: add gain range check to wlc_phy_iqcal_gainparams_nphy() (bsc#1239109).
• CVE-2025-21693: mm: zswap: properly synchronize freeing resources during CPU hotunplug (bsc#1237029).
• CVE-2025-21718: net: rose: fix timer races against user threads (bsc#1239073).
• CVE-2025-21772: partitions: mac: fix handling of bogus partition table (bsc#1238911).
• CVE-2025-21780: drm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table() (bsc#1239115).

The following non-security bugs were fixed:

• ACPI: processor: idle: Return an error if both P_LVL{2,3} idle states are invalid (bsc#1237530).
• RDMA/mana_ib: Prefer struct_size over open coded arithmetic (bsc#1239016).
• RDMA/mana_ib: Use v2 version of cfg_rx_steer_req to enable RX coalescing (bsc#1239016).
• Revert 'gfs2: Fix inode height consistency check (git-fixes).
• btrfs: defrag: do not use merged extent map for their generation check (bsc#1239968).
• btrfs: fix defrag not merging contiguous extents due to merged extent maps (bsc#1239968).
• btrfs: fix extent map merging not happening for adjacent extents (bsc#1239968).
• btrfs: send: allow cloning non-aligned extent if it ends at i_size (bsc#1239969).
• btrfs: send: fix invalid clone operation for file that got its size decreased (bsc#1239969).
• cifs: Add a laundromat thread for cached directories (git-fixes).
• cifs: fix potential null pointer use in destroy_workqueue in init_cifs error path (git-fixes).
• gfs2: Fix inode height consistency check (git-fixes).
• mm/mmu_notifier.c: fix race in mmu_interval_notifier_remove() (bsc#1239126).
• mm: zswap: move allocations during CPU init outside the lock (git-fixes).
• net: mana: Add flex array to struct mana_cfg_rx_steer_req_v2 (bsc#1239016).
• net: mana: Allow variable size indirection table (bsc#1239016).
• net: mana: Avoid open coded arithmetic (bsc#1239016).
• net: mana: Support holes in device list reply msg (bsc#1240133).
• sched/membarrier: Fix redundant load of membarrier_state (bsc#1232743).
• smb3: allow controlling length of time directory entries are cached with dir leases (git-fixes).
• smb3: do not start laundromat thread when dir leases disabled (git-fixes).
• smb3: retrying on failed server close (git-fixes).
• smb: client: destroy cfid_put_wq on module exit (git-fixes).
• smb: client: disable directory caching when dir_cache_timeout is zero (git-fixes).
• smb: client: do not start laundromat thread on nohandlecache (git-fixes).
• smb: client: make laundromat a delayed worker (git-fixes).
• smb: client: properly close cfids on umount (bsc#1231432, bsc#1232299, bsc#1235599, bsc#1234896).
• tpm: send_data: Wait longer for the TPM to become ready (bsc#1235870).

The SUSE Linux Enterprise 15 SP4 RT kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2022-49053: scsi: target: tcmu: Fix possible page UAF (bsc#1237918).
• CVE-2022-49465: blk-throttle: Set BIO_THROTTLED when bio has been throttled (bsc#1238919).
• CVE-2022-49739: gfs2: Always check inode size of inline inodes (bsc#1240207).
• CVE-2023-52935: mm/khugepaged: fix ->anon_vma race (bsc#1240276).
• CVE-2024-2201: Fixed information leak in x86/BHI (bsc#1217339).
• CVE-2024-41092: drm/i915/gt: Fix potential UAF by revoke of fence registers (bsc#1228483).
• CVE-2024-42098: crypto: ecdh - explicitly zeroize private_key (bsc#1228779).
• CVE-2024-42229: crypto: aead,cipher - zeroize key buffer after use (bsc#1228708).
• CVE-2024-53064: idpf: fix idpf_vc_core_init error path (bsc#1233558 bsc#1234464).
• CVE-2024-56651: can: hi311x: hi3110_can_ist(): fix potential use-after-free (bsc#1235528).
• CVE-2024-57996: net_sched: sch_sfq: do not allow 1 packet limit (bsc#1239076).
• CVE-2024-58014: wifi: brcmsmac: add gain range check to wlc_phy_iqcal_gainparams_nphy() (bsc#1239109).
• CVE-2024-58083: KVM: Explicitly verify target vCPU is online in kvm_get_vcpu() (bsc#1239036).
• CVE-2025-21693: mm: zswap: properly synchronize freeing resources during CPU hotunplug (bsc#1237029).
• CVE-2025-21714: RDMA/mlx5: Fix implicit ODP use after free (bsc#1237890).
• CVE-2025-21718: net: rose: fix timer races against user threads (bsc#1239073).
• CVE-2025-21732: RDMA/mlx5: Fix a race for an ODP MR which leads to CQE with error (bsc#1237877).
• CVE-2025-21753: btrfs: fix use-after-free when attempting to join an aborted transaction (bsc#1237875).
• CVE-2025-21772: partitions: mac: fix handling of bogus partition table (bsc#1238911).
• CVE-2025-21780: drm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table() (bsc#1239115).
• CVE-2025-21839: kABI: Fix kABI after backport od CVE-2025-21839 (bsc#1239061).

The following non-security bugs were fixed:

• ACPI: processor: idle: Return an error if both P_LVL{2,3} idle states are invalid (bsc#1237530).
• RDMA/mana_ib: Prefer struct_size over open coded arithmetic (bsc#1239016).
• RDMA/mana_ib: Use v2 version of cfg_rx_steer_req to enable RX coalescing (bsc#1239016).
• RDMA/mlx5: Fix implicit ODP hang on parent deregistration (git-fixes)
• btrfs: defrag: do not use merged extent map for their generation check (bsc#1239968).
• btrfs: fix defrag not merging contiguous extents due to merged extent maps (bsc#1239968).
• btrfs: fix extent map merging not happening for adjacent extents (bsc#1239968).
• btrfs: send: allow cloning non-aligned extent if it ends at i_size (bsc#1239969).
• btrfs: send: fix invalid clone operation for file that got its size decreased (bsc#1239969).
• gfs2: Fix inode height consistency check (git-fixes).
• mm/mmu_notifier.c: fix race in mmu_interval_notifier_remove() (bsc#1239126).
• mm: zswap: move allocations during CPU init outside the lock (git-fixes).
• net: mana: Add flex array to struct mana_cfg_rx_steer_req_v2 (bsc#1239016).
• net: mana: Allow variable size indirection table (bsc#1239016).
• net: mana: Avoid open coded arithmetic (bsc#1239016).
• net: mana: Fix error handling in mana_create_txq/rxq's NAPI cleanup (bsc#1240195).
• net: mana: Support holes in device list reply msg (bsc#1240133).
• x86/bhi: Avoid warning in #DB handler due to BHI mitigation (git-fixes).
• x86/bugs: Cache the value of MSR_IA32_ARCH_CAPABILITIES (git-fixes).
• x86/bugs: Fix BHI documentation (git-fixes).
• x86/bugs: Fix BHI handling of RRSBA (git-fixes).
• x86/bugs: Fix BHI retpoline check (git-fixes).
• x86/bugs: Fix return type of spectre_bhi_state() (git-fixes).
• x86/bugs: Remove CONFIG_BHI_MITIGATION_AUTO and spectre_bhi=auto (git-fixes).

The SUSE Linux Enterprise 15 SP5 kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2022-49053: scsi: target: tcmu: Fix possible page UAF (bsc#1237918).
• CVE-2022-49465: blk-throttle: Set BIO_THROTTLED when bio has been throttled (bsc#1238919).
• CVE-2022-49739: gfs2: Always check inode size of inline inodes (bsc#1240207).
• CVE-2023-52935: mm/khugepaged: fix ->anon_vma race (bsc#1240276).
• CVE-2024-53124: net: fix data-races around sk->sk_forward_alloc (bsc#1234074).
• CVE-2024-53176: smb: During unmount, ensure all cached dir instances drop their dentry (bsc#1234894).
• CVE-2024-53178: smb: Do not leak cfid when reconnect races with open_cached_dir (bsc#1234895).
• CVE-2024-56651: can: hi311x: hi3110_can_ist(): fix potential use-after-free (bsc#1235528).
• CVE-2024-57996: net_sched: sch_sfq: do not allow 1 packet limit (bsc#1239076).
• CVE-2024-58013: Bluetooth: MGMT: Fix slab-use-after-free Read in mgmt_remove_adv_monitor_sync (bsc#1239095).
• CVE-2024-58014: wifi: brcmsmac: add gain range check to wlc_phy_iqcal_gainparams_nphy() (bsc#1239109).
• CVE-2025-21693: mm: zswap: properly synchronize freeing resources during CPU hotunplug (bsc#1237029).
• CVE-2025-21718: net: rose: fix timer races against user threads (bsc#1239073).
• CVE-2025-21772: partitions: mac: fix handling of bogus partition table (bsc#1238911).
• CVE-2025-21780: drm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table() (bsc#1239115).

The following non-security bugs were fixed:

• ACPI: processor: idle: Return an error if both P_LVL{2,3} idle states are invalid (bsc#1237530).
• btrfs: defrag: do not use merged extent map for their generation check (bsc#1239968).
• btrfs: fix defrag not merging contiguous extents due to merged extent maps (bsc#1239968).
• btrfs: fix extent map merging not happening for adjacent extents (bsc#1239968).
• btrfs: send: allow cloning non-aligned extent if it ends at i_size (bsc#1239969).
• btrfs: send: fix invalid clone operation for file that got its size decreased (bsc#1239969).
• cifs: Add a laundromat thread for cached directories (git-fixes).
• cifs: fix potential null pointer use in destroy_workqueue in init_cifs error path (git-fixes).
• gfs2: Fix inode height consistency check (git-fixes).
• mm: zswap: move allocations during CPU init outside the lock (git-fixes).
• mm/mmu_notifier.c: fix race in mmu_interval_notifier_remove() (bsc#1239126).
• net: mana: Add flex array to struct mana_cfg_rx_steer_req_v2 (bsc#1239016).
• net: mana: Allow variable size indirection table (bsc#1239016).
• net: mana: Avoid open coded arithmetic (bsc#1239016).
• net: mana: Support holes in device list reply msg (bsc#1240133).
• RDMA/mana_ib: Prefer struct_size over open coded arithmetic (bsc#1239016).
• RDMA/mana_ib: Use v2 version of cfg_rx_steer_req to enable RX coalescing (bsc#1239016).
• sched/membarrier: Fix redundant load of membarrier_state (bsc#1232743).
• smb: client: destroy cfid_put_wq on module exit (git-fixes).
• smb: client: disable directory caching when dir_cache_timeout is zero (git-fixes).
• smb: client: do not start laundromat thread on nohandlecache (git-fixes).
• smb: client: make laundromat a delayed worker (git-fixes).
• smb: client: properly close cfids on umount (bsc#1231432, bsc#1232299, bsc#1235599, bsc#1234896).
• smb3: allow controlling length of time directory entries are cached with dir leases (git-fixes).
• smb3: do not start laundromat thread when dir leases disabled (git-fixes).
• smb3: retrying on failed server close (git-fixes).
• tpm: send_data: Wait longer for the TPM to become ready (bsc#1235870).