Explore top 10 tips to secure your open-source projects now. Read More

×
Alerts This Week
Warning Icon 1 496
Alerts This Week
Warning Icon 1 496

openSUSE 15.3 Kernel Important Update Fixes Seven Issues

opensuse
Calendar Grey April 15, 2026
Dist Opensuse Esm H88
SUSE Linux Kernel update resolves seven important security issues. Ensure protection by applying fixes promptly.
An update that solves seven vulnerabilities can now be installed.

Description

The SUSE Linux Enterprise 15 SP3 kernel was updated to fix various security

issues.

The following security issues were fixed:

* CVE-2025-38234: sched/rt: Fix race in push_rt_task (bsc#1246057).

* CVE-2026-23103: ipvlan: Make the addrs_lock be per port (bsc#1257773).

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

(bsc#1259797).

* CVE-2026-23272: netfilter: nf_tables: unconditionally bump set->nelems

before insertion (bsc#1260009).

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

labels (bsc#1260005).

* CVE-2026-23293: net: vxlan: fix nd_tbl NULL dereference when IPv6 is

disabled (bsc#1260486).

* CVE-2026-23398: icmp: fix NULL pointer dereference in icmp_tag_validation()

(bsc#1260730).

## Special Instructions and Notes:

* Please reboot the system after installing this update.

Topics%20covered

Topics Covered

security advisory security issue threat important 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:

* openSUSE Leap 15.3

zypper in -t patch SUSE-2026-1342=1

* SUSE Linux Enterprise Micro 5.2

zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-1342=1

* SUSE Linux Enterprise Micro for Rancher 5.2

zypper in -t patch SUSE-SUSE-MicroOS-5.2-2026-1342=1

Package List

* openSUSE Leap 15.3 (noarch nosrc)

* kernel-docs-5.3.18-150300.59.241.1

* openSUSE Leap 15.3 (noarch)

* kernel-devel-5.3.18-150300.59.241.1

* kernel-source-5.3.18-150300.59.241.1

* kernel-source-vanilla-5.3.18-150300.59.241.1

* kernel-docs-html-5.3.18-150300.59.241.1

* kernel-macros-5.3.18-150300.59.241.1

* openSUSE Leap 15.3 (aarch64 ppc64le s390x x86_64)

* kernel-default-debugsource-5.3.18-150300.59.241.1

* kernel-obs-build-debugsource-5.3.18-150300.59.241.1

* gfs2-kmp-default-debuginfo-5.3.18-150300.59.241.1

* kernel-default-optional-5.3.18-150300.59.241.1

* cluster-md-kmp-default-5.3.18-150300.59.241.1

* reiserfs-kmp-default-debuginfo-5.3.18-150300.59.241.1

* kselftests-kmp-default-5.3.18-150300.59.241.1

* reiserfs-kmp-default-5.3.18-150300.59.241.1

* cluster-md-kmp-default-debuginfo-5.3.18-150300.59.241.1

* kernel-default-devel-5.3.18-150300.59.241.1

* ocfs2-kmp-default-5.3.18-150300.59.241.1

* kernel-default-extra-5.3.18-150300.59.241.1

* kernel-default-debuginfo-5.3.18-150300.59.241.1

*...

Read the Full Advisory

References

* bsc#1246057

* bsc#1257773

* bsc#1259797

* bsc#1260005

* bsc#1260009

* bsc#1260486

* bsc#1260730

## References:

* https://www.suse.com/security/cve/CVE-2025-38234.html

* https://www.suse.com/security/cve/CVE-2026-23103.html

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

* https://www.suse.com/security/cve/CVE-2026-23272.html

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

* https://www.suse.com/security/cve/CVE-2026-23293.html

* https://www.suse.com/security/cve/CVE-2026-23398.html

* https://bugzilla.suse.com/show_bug.cgi?id=1246057

* https://bugzilla.suse.com/show_bug.cgi?id=1257773

* https://bugzilla.suse.com/show_bug.cgi?id=1259797

* https://bugzilla.suse.com/show_bug.cgi?id=1260005

* https://bugzilla.suse.com/show_bug.cgi?id=1260009

* https://bugzilla.suse.com/show_bug.cgi?id=1260486

* https://bugzilla.suse.com/show_bug.cgi?id=1260730

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:1342-1
Release Date: 2026-04-15T10:15:56Z
Affected Products: * openSUSE Leap 15.3 * SUSE Linux Enterprise Micro 5.2 * SUSE Linux Enterprise Micro for Rancher 5.2

Topics%20covered

Topics Covered

security advisory security issue threat important kernel OpenSUSE

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.