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openSUSE 15 SP4 Kernel Security Updates Address Critical Local Flaw

opensuse
Calendar Grey June 1, 2026
Dist Opensuse Esm H88
Important kernel security update for openSUSE Leap 15 SP4 addressing local exploit vulnerabilities.
An update that solves five vulnerabilities can now be installed.

Description

This update for the SUSE Linux Enterprise Kernel 5.14.21-150400.24.197 fixes

various security issues

The following security issues were fixed:

* CVE-2025-54518: AMD-SN-7052: CPU OP Cache Corruption (bsc#1264096).

* CVE-2026-23243: RDMA/umad: Reject negative data_len in ib_umad_write

(bsc#1259798).

* CVE-2026-23274: netfilter: xt_IDLETIMER: reject rev0 reuse of ALARM timer

labels (bsc#1260908).

* CVE-2026-46300: FragNesia attack: another xfrm/esp based local root exploit

(bsc#1265224).

* CVE-2026-46333: ptrace: slightly saner 'get_dumpable()' logic (bsc#1265384).

Topics%20covered

Topics Covered

security advisory local exploit important kernel system patch OpenSUSE

Patch

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like

YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

* openSUSE Leap 15.4

zypper in -t patch SUSE-2026-2158=1 SUSE-2026-2161=1 SUSE-2026-2156=1

SUSE-2026-2154=1

* SUSE Linux Enterprise Live Patching 15-SP4

zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP4-2026-2158=1 SUSE-SLE-

Module-Live-Patching-15-SP4-2026-2161=1 SUSE-SLE-Module-Live-

Patching-15-SP4-2026-2156=1 SUSE-SLE-Module-Live-Patching-15-SP4-2026-2154=1

Package List

* openSUSE Leap 15.4 (ppc64le s390x x86_64)

* kernel-livepatch-5_14_21-150400_24_187-default-debuginfo-8-150400.2.1

* kernel-livepatch-SLE15-SP4_Update_49-debugsource-4-150400.2.1

* kernel-livepatch-5_14_21-150400_24_187-default-8-150400.2.1

* kernel-livepatch-5_14_21-150400_24_194-default-6-150400.2.1

* kernel-livepatch-5_14_21-150400_24_184-default-8-150400.2.1

* kernel-livepatch-5_14_21-150400_24_197-default-debuginfo-4-150400.2.1

* kernel-livepatch-5_14_21-150400_24_184-default-debuginfo-8-150400.2.1

* kernel-livepatch-SLE15-SP4_Update_48-debugsource-6-150400.2.1

* kernel-livepatch-5_14_21-150400_24_197-default-4-150400.2.1

* kernel-livepatch-SLE15-SP4_Update_47-debugsource-8-150400.2.1

* kernel-livepatch-5_14_21-150400_24_194-default-debuginfo-6-150400.2.1

* kernel-livepatch-SLE15-SP4_Update_46-debugsource-8-150400.2.1

* SUSE Linux Enterprise Live Patching 15-SP4 (ppc64le s390x x86_64)

* kernel-livepatch-5_14_21-150400_24_187-default-debuginfo-8-150400.2.1

*...

Read the Full Advisory

References

* bsc#1259798

* bsc#1260908

* bsc#1264096

* bsc#1265224

* bsc#1265384

## References:

* https://www.suse.com/security/cve/CVE-2025-54518.html

* https://www.suse.com/security/cve/CVE-2026-23243.html

* https://www.suse.com/security/cve/CVE-2026-23274.html

* https://www.suse.com/security/cve/CVE-2026-46300.html

* https://www.suse.com/security/cve/CVE-2026-46333.html

* https://bugzilla.suse.com/show_bug.cgi?id=1259798

* https://bugzilla.suse.com/show_bug.cgi?id=1260908

* https://bugzilla.suse.com/show_bug.cgi?id=1264096

* https://bugzilla.suse.com/show_bug.cgi?id=1265224

* https://bugzilla.suse.com/show_bug.cgi?id=1265384

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2158-1
Release Date: 2026-05-31T11:34:13Z
Affected Products: * openSUSE Leap 15.4 * SUSE Linux Enterprise High Performance Computing 15 SP4 * SUSE Linux Enterprise Live Patching 15-SP4 * SUSE Linux Enterprise Micro 5.3 * SUSE Linux Enterprise Micro 5.4 * SUSE Linux Enterprise Real Time 15 SP4 * SUSE Linux Enterprise Server 15 SP4 * SUSE Linux Enterprise Server for SAP Applications 15 SP4

Topics%20covered

Topics Covered

security advisory local exploit important kernel system patch OpenSUSE

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