SUSE-SU-2026:1909-1

HIGH8.8

Security update for the Linux Kernel

Published May 17, 2026

Modified 2 weeks ago

Fix available

Details

Description of the patch:

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

The following security issues were fixed:

CVE-2025-54518: x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache (bsc#1264013).
CVE-2026-46300: net: skbuff: propagate shared-frag marker through pskb_copy() (bsc#1265209).
CVE-2026-46333: Fixed logic bug in the Linux kernel's __ptrace_may_access() function (bsc#1265308).

The following non security issues were fixed:

io-wq: check that the predecessor is hashed in io_wq_remove_pending() (git-fixes).

Affected Packages(20 packages)

cluster-md-kmp-default

SUSE Linux Enterprise High Availability Extension 15 SP4

Fixed in:

5.14.21-150400.24.214.1

dlm-kmp-default

SUSE Linux Enterprise High Availability Extension 15 SP4

Fixed in:

5.14.21-150400.24.214.1

gfs2-kmp-default

SUSE Linux Enterprise High Availability Extension 15 SP4

Fixed in:

5.14.21-150400.24.214.1

ocfs2-kmp-default

SUSE Linux Enterprise High Availability Extension 15 SP4

Fixed in:

5.14.21-150400.24.214.1

kernel-64kb

SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP4-LTSSSUSE Linux Enterprise Server 15 SP4-LTSS

Fixed in:

5.14.21-150400.24.214.1

kernel-64kb-devel

SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP4-LTSSSUSE Linux Enterprise Server 15 SP4-LTSS

Fixed in:

5.14.21-150400.24.214.1

kernel-default

SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP4-LTSSSUSE Linux Enterprise Micro 5.3SUSE Linux Enterprise Micro 5.4SUSE Linux Enterprise Server 15 SP4-LTSS

Fixed in:

5.14.21-150400.24.214.1

kernel-default-base

Fixed in:

5.14.21-150400.24.214.1.150400.24.108.2

kernel-default-devel

SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOSSUSE Linux Enterprise High Performance Computing 15 SP4-LTSSSUSE Linux Enterprise Server 15 SP4-LTSSSUSE Linux Enterprise Server for SAP Applications 15 SP4

Fixed in:

5.14.21-150400.24.214.1

kernel-devel

Fixed in:

5.14.21-150400.24.214.1

References

ADVISORY

https://bugzilla.suse.com/1264013

ADVISORY

https://bugzilla.suse.com/1265209

ADVISORY

https://bugzilla.suse.com/1265308