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openSUSE Leap 15.6: Kernel Important Update 2025:3748-1

opensuse
Calendar Grey October 23, 2025
Dist Opensuse Esm H88
An important security update addressing nine vulnerabilities is now available for openSUSE kernel. Install promptly.
An update that solves nine vulnerabilities can now be installed.

Description

This update for the Linux Kernel 6.4.0-150600_23_38 fixes several issues.

The following security issues were fixed:

* CVE-2025-38678: netfilter: nf_tables: reject duplicate device on updates

(bsc#1249534).

* CVE-2025-38499: clone_private_mnt(): make sure that caller has CAP_SYS_ADMIN

in the right userns (bsc#1248673).

* CVE-2025-38396: fs: export anon_inode_make_secure_inode() and fix secretmem

LSM bypass (bsc#1247158).

* CVE-2025-38566: sunrpc: fix handling of server side tls alerts

(bsc#1248376).

* CVE-2025-21971: net_sched: Prevent creation of classes with TC_H_ROOT

(bsc#1245794).

* CVE-2025-38110: net/mdiobus: Fix potential out-of-bounds clause 45

read/write access (bsc#1249458).

* CVE-2025-38644: wifi: mac80211: reject TDLS operations when station is not

associated (bsc#1248749).

* CVE-2025-38206: exfat: fix double free in delayed_free (bsc#1246075).

* CVE-2025-38471: tls: always refresh the queue when reading sock

...

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Topics%20covered

Topics Covered

security advisory software update important kernel OpenSUSE CVE

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 15.6

zypper in -t patch SUSE-2025-3748=1 SUSE-2025-3756=1 SUSE-2025-3749=1

* SUSE Linux Enterprise Live Patching 15-SP6

zypper in -t patch SUSE-SLE-Module-Live-Patching-15-SP6-2025-3748=1 SUSE-SLE-

Module-Live-Patching-15-SP6-2025-3756=1 SUSE-SLE-Module-Live-

Patching-15-SP6-2025-3749=1

Package List

* openSUSE Leap 15.6 (ppc64le s390x x86_64)

* kernel-livepatch-6_4_0-150600_23_38-default-9-150600.2.1

* kernel-livepatch-6_4_0-150600_23_30-default-14-150600.2.1

* kernel-livepatch-6_4_0-150600_23_33-default-14-150600.2.1

* kernel-livepatch-SLE15-SP6_Update_6-debugsource-14-150600.2.1

* kernel-livepatch-6_4_0-150600_23_38-default-debuginfo-9-150600.2.1

* kernel-livepatch-6_4_0-150600_23_30-default-debuginfo-14-150600.2.1

* kernel-livepatch-6_4_0-150600_23_33-default-debuginfo-14-150600.2.1

* kernel-livepatch-SLE15-SP6_Update_7-debugsource-14-150600.2.1

* kernel-livepatch-SLE15-SP6_Update_8-debugsource-9-150600.2.1

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

* kernel-livepatch-6_4_0-150600_23_38-default-9-150600.2.1

* kernel-livepatch-6_4_0-150600_23_30-default-14-150600.2.1

* kernel-livepatch-6_4_0-150600_23_33-default-14-150600.2.1

* kernel-livepatch-SLE15-SP6_Update_6-debugsource-14-150600.2.1

* kernel-livepatch-6_4_0-150600_23_38-default-debuginfo-9-150600.2.1

*...

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References

* bsc#1245794

* bsc#1246075

* bsc#1247158

* bsc#1247452

* bsc#1248376

* bsc#1248673

* bsc#1248749

* bsc#1249458

* bsc#1249534

## References:

* https://www.suse.com/security/cve/CVE-2025-21971.html

* https://www.suse.com/security/cve/CVE-2025-38110.html

* https://www.suse.com/security/cve/CVE-2025-38206.html

* https://www.suse.com/security/cve/CVE-2025-38396.html

* https://www.suse.com/security/cve/CVE-2025-38471.html

* https://www.suse.com/security/cve/CVE-2025-38499.html

* https://www.suse.com/security/cve/CVE-2025-38566.html

* https://www.suse.com/security/cve/CVE-2025-38644.html

* https://www.suse.com/security/cve/CVE-2025-38678.html

* https://bugzilla.suse.com/show_bug.cgi?id=1245794

* https://bugzilla.suse.com/show_bug.cgi?id=1246075

* https://bugzilla.suse.com/show_bug.cgi?id=1247158

* https://bugzilla.suse.com/show_bug.cgi?id=1247452

* https://bugzilla.suse.com/show_bug.cgi?id=1248376

* https://bugzilla.suse.com/show_bug.cgi?id=1248673

* https://bugzilla.suse.com/show_bug.cgi?id=1248749

*...

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Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2025:3748-1
Release Date: 2025-10-23T11:34:37Z
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 software update important kernel OpenSUSE CVE

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