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openSUSE Kernel Important Heap Buffer Overflow Fix 2026-2610-1

opensuse
Calendar Grey June 24, 2026
Dist Opensuse Esm H88
Critical kernel update for openSUSE resolves six issues with significant threats, ensuring your system's security.
An update that solves six vulnerabilities and has one security fix can now be installed.

Description

This update for the SUSE Linux Enterprise Kernel 6.4.0-150600.23.50 fixes

various security issues

The following security issues were fixed:

* CVE-2026-23278: netfilter: nf_tables: always walk all pending catchall

elements (bsc#1260907).

* CVE-2026-31402: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache

(bsc#1261640).

* CVE-2026-31504: net: fix fanout UAF in packet_release() via NETDEV_UP race

(bsc#1263088).

* CVE-2026-31694: fuse: reject oversized dirents in page cache (bsc#1263902).

* CVE-2026-43503: final dirty.frag related fixes (bsc#1266229).

* CVE-2026-46323: net: gro: don't merge zcopy skbs (bsc#1268282).

* net/sched: fix pedit partial COW leading to page cache (bsc#1267625).

Topics%20covered

Topics Covered

security advisory buffer overflow important heap overflow kernel 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:

* SUSE Linux Enterprise Live Patching 15-SP6

zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP6-2026-2610=1

* openSUSE Leap 15.6

zypper in -t patch SUSE-2026-2610=1

Package List

* SUSE Linux Enterprise Live Patching 15-SP6 (ppc64le s390x x86_64)

* kernel-livepatch-6_4_0-150600_23_50-default-debuginfo-19-150600.2.1

* kernel-livepatch-6_4_0-150600_23_50-default-19-150600.2.1

* kernel-livepatch-SLE15-SP6_Update_11-debugsource-19-150600.2.1

* openSUSE Leap 15.6 (ppc64le s390x x86_64)

* kernel-livepatch-6_4_0-150600_23_50-default-debuginfo-19-150600.2.1

* kernel-livepatch-6_4_0-150600_23_50-default-19-150600.2.1

* kernel-livepatch-SLE15-SP6_Update_11-debugsource-19-150600.2.1

References

* bsc#1260907

* bsc#1261640

* bsc#1263088

* bsc#1263902

* bsc#1266229

* bsc#1267625

* bsc#1268282

## References:

* https://www.suse.com/security/cve/CVE-2026-23278.html

* https://www.suse.com/security/cve/CVE-2026-31402.html

* https://www.suse.com/security/cve/CVE-2026-31504.html

* https://www.suse.com/security/cve/CVE-2026-31694.html

* https://www.suse.com/security/cve/CVE-2026-43503.html

* https://www.suse.com/security/cve/CVE-2026-46323.html

* https://bugzilla.suse.com/show_bug.cgi?id=1260907

* https://bugzilla.suse.com/show_bug.cgi?id=1261640

* https://bugzilla.suse.com/show_bug.cgi?id=1263088

* https://bugzilla.suse.com/show_bug.cgi?id=1263902

* https://bugzilla.suse.com/show_bug.cgi?id=1266229

* https://bugzilla.suse.com/show_bug.cgi?id=1267625

* https://bugzilla.suse.com/show_bug.cgi?id=1268282

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2610-1
Release Date: 2026-06-24T08:49:52Z
Affected Products: * openSUSE Leap 15.6 * SUSE Linux Enterprise Live Patching 15-SP6 * SUSE Linux Enterprise Real Time 15 SP6 * SUSE Linux Enterprise Server 15 SP6 * SUSE Linux Enterprise Server for SAP Applications 15 SP6

Topics%20covered

Topics Covered

security advisory buffer overflow important heap overflow kernel OpenSUSE

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