🛡️ SUSE-SU-2026:22048-1 — kernel-64kb (CVE-2023-20585 +37 more)

Security update for the Linux Kernel

The SUSE Linux Enterprise 16.0 kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2023-20585: iommu/amd: Use maximum Event log buffer size when SNP is enabled on Family 0x19 (bsc#1243603).
• CVE-2026-3150: bcache: fix cached_dev.sb_bio use-after-free and crash (bsc#1263169).
• CVE-2026-23359: bpf: Fix stack-out-of-bounds write in devmap (bsc#1260584).
• CVE-2026-23380: tracing: Fix WARN_ON in tracing_buffers_mmap_close (bsc#1260539).
• CVE-2026-23444: wifi: mac80211: always free skb on ieee80211_tx_prepare_skb() failure (bsc#1266307).
• CVE-2026-31464: scsi: ibmvfc: Fix OOB access in ibmvfc_discover_targets_done() (bsc#1262656).
• CVE-2026-31480: tracing: Fix potential deadlock in cpu hotplug with osnoise (bsc#1262634).
• CVE-2026-31483: s390/barrier: Make array_index_mask_nospec() __always_inline (bsc#1261590 bsc#1262771).
• CVE-2026-31493: RDMA/efa: Fix use of completion ctx after free (bsc#1262668).
• CVE-2026-31516: xfrm: prevent policy_hthresh.work from racing with netns teardown (bsc#1262755).
• CVE-2026-31521: module: Fix kernel panic when a symbol st_shndx is out of bounds (bsc#1263102).
• CVE-2026-31568: s390/mm: Add missing secure storage access fixups for donated memory (bsc#1263068).
• CVE-2026-31575: mm/userfaultfd: fix hugetlb fault mutex hash calculation (bsc#1263067).
• CVE-2026-31613: smb: client: fix OOB reads parsing symlink error response (bsc#1263769).
• CVE-2026-31614: smb: client: fix off-by-8 bounds check in check_wsl_eas() (bsc#1263774).
• CVE-2026-31729: usb: typec: ucsi: validate connector number in ucsi_notify_common() (bsc#1264112).
• CVE-2026-31736: net: ethernet: mtk_ppe: avoid NULL deref when gmac0 is disabled (bsc#1263908).
• CVE-2026-43012: net/mlx5: Fix switchdev mode rollback in case of failure (bsc#1264016).
• CVE-2026-43013: net/mlx5: lag: Check for LAG device before creating debugfs (bsc#1264011).
• CVE-2026-43054: scsi: target: tcm_loop: Drain commands in target_reset handler (bsc#1264063).
• CVE-2026-43112: fs/smb/client: fix out-of-bounds read in cifs_sanitize_prepath (bsc#1264437).
• CVE-2026-43234: team: avoid NETDEV_CHANGEMTU event when unregistering slave (bsc#1264409).
• CVE-2026-43252: mptcp: pm: in-kernel: always set ID as avail when rm endp (bsc#1264300).
• CVE-2026-43325: wifi: iwlwifi: mvm: don't send a 6E related command when not supported (bsc#1265110).
• CVE-2026-43328: cpufreq: governor: fix double free in cpufreq_dbs_governor_init() error path (bsc#1264832).
• CVE-2026-43333: bpf: reject direct access to nullable PTR_TO_BUF pointers (bsc#1264726).
• CVE-2026-43338: btrfs: reserve enough transaction items for qgroup ioctls (bsc#1264716).
• CVE-2026-43341: net/ipv6: ioam6: prevent schema length wraparound in trace fill (bsc#1265044).
• CVE-2026-43359: btrfs: fix transaction abort on set received ioctl due to item overflow (bsc#1264719).
• CVE-2026-43360: btrfs: fix transaction abort on file creation due to name hash collision (bsc#1264720).
• CVE-2026-43361: btrfs: fix transaction abort when snapshotting received subvolumes (bsc#1264722).
• CVE-2026-43362: smb: client: fix in-place encryption corruption in SMB2_write() (bsc#1264989).
• CVE-2026-43414: scsi: qla2xxx: Completely fix fcport double free (bsc#1264669).
• CVE-2026-43499: rtmutex: Use waiter::task instead of current in remove_waiter() (bsc#1266001).
• CVE-2026-45843: slip: bound decode() reads against the compressed packet length (bsc#1266395).
• CVE-2026-46110: net: stmmac: rename STMMAC_GET_ENTRY() -> STMMAC_NEXT_ENTRY() (bsc#1266759).

The following non security issues were fixed:

• ACPI: x86: cmos_rtc: Clean up address space handler driver (stable-fixes).
• ACPI: x86: cmos_rtc: Improve coordination with ACPI TAD driver (git-fixes).
• ALSA: asihpi: Fix potential OOB array access at reading cache (stable-fixes).
• ALSA: hda/conexant: Renaming the codec with device ID 0x1f86 and 0x1f87 (stable-fixes).
• ALSA: pcm: Don't setup bogus iov_iter for silencing (git-fixes).
• ALSA: pcm: oss: Fix setup list UAF on proc write error (git-fixes).
• ALSA: scarlett2: Fix 2i2 Gen 4 direct monitor gain on firmware 2417 (git-fixes).
• ALSA: seq: avoid past-the-end iterator in snd_seq_create_port() (git-fixes).
• ALSA: seq: Serialize UMP output teardown with event_input (git-fixes).
• ALSA: timer: avoid past-the-end iterator in snd_timer_dev_register() (git-fixes).
• ALSA: ua101: Reject too-short USB descriptors (git-fixes).
• arm64: tlb: Flush walk cache when unsharing PMD tables (git-fixes).
• ASoC: codecs: simple-mux: Fix enum control bounds check (git-fixes).
• ASoC: cs35l56: Fix flushing of IRQ work in cs35l56_sdw_remove() (git-fixes).
• ASoC: Intel: bytcht_es8316: Fix MCLK leak on init errors (git-fixes).
• ASoC: qcom: q6asm-dai: close stream only when running (git-fixes).
• ASoC: qcom: q6asm-dai: do not set stream state in event and trigger callbacks (git-fixes).
• ASoC: qcom: q6asm-dai: fix error handling in prepar