🛡️ SUSE-SU-2026:20845-1 — kernel-rt (CVE-2023-53817 +654 more)

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Security update for the Linux Kernel

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() (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 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-2025-40289: drm/amdgpu: hide VRAM sysfs attribu

Affected software

SUSE-SU-2026:20845-1 is recorded against 2 packages.

  • kernel-rt (fixed in 6.4.0-40.1)
  • kernel-source-rt (fixed in 6.4.0-40.1)

Timeline and source

Published on 24 March 2026 and last revised on 28 March 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

www.suse.com (Advisory)
bugzilla.suse.com (Report)
bugzilla.suse.com (Report)
bugzilla.suse.com (Report)
bugzilla.suse.com (Report)
bugzilla.suse.com (Report)
bugzilla.suse.com (Report)
bugzilla.suse.com (Report)
bugzilla.suse.com (Report)
bugzilla.suse.com (Report)
bugzilla.suse.com (Report)
bugzilla.suse.com (Report)
bugzilla.suse.com (Report)
bugzilla.suse.com (Report)
bugzilla.suse.com (Report)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-03-24
Updated 2026-08-20
Modified 2026-03-28
Fix URL N/A

Affected Packages

Software From version Fixed in
kernel-rt — 6.4.0-40.1
kernel-source-rt — 6.4.0-40.1

References

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