Security update for the Linux Kernel RT (Live Patch 9 for SLE 15 SP6)

Announcement ID: SUSE-SU-2025:03638-1
Release Date: 2025-10-18T11:03:43Z
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2025-21971 ( SUSE ): 8.5 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  • CVE-2025-21971 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2025-38110 ( SUSE ): 8.5 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  • CVE-2025-38110 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2025-38206 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  • CVE-2025-38206 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2025-38396 ( SUSE ): 8.5 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  • CVE-2025-38396 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2025-38471 ( SUSE ): 8.4 CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:L/VA:H/SC:N/SI:N/SA:N
  • CVE-2025-38471 ( SUSE ): 7.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:H
  • CVE-2025-38499 ( SUSE ): 6.2 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:H
  • CVE-2025-38499 ( SUSE ): 8.4 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H
  • CVE-2025-38566 ( SUSE ): 9.2 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  • CVE-2025-38566 ( SUSE ): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2025-38644 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  • CVE-2025-38644 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2025-38678 ( SUSE ): 7.1 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Affected Products:
  • 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

An update that solves nine vulnerabilities can now be installed.

Description:

This update for the Linux Kernel 6.4.0-150600_10_29 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 (bsc#1247452).

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-SP6-2025-3638=1 SUSE-SLE-Module-Live-Patching-15-SP6-2025-3639=1 SUSE-SLE-Module-Live-Patching-15-SP6-2025-3649=1 SUSE-SLE-Module-Live-Patching-15-SP6-2025-3640=1 SUSE-SLE-Module-Live-Patching-15-SP6-2025-3641=1

Package List:

  • SUSE Linux Enterprise Live Patching 15-SP6 (x86_64)
    • kernel-livepatch-6_4_0-150600_10_26-rt-debuginfo-9-150600.2.1
    • kernel-livepatch-6_4_0-150600_10_20-rt-debuginfo-14-150600.2.1
    • kernel-livepatch-6_4_0-150600_10_26-rt-9-150600.2.1
    • kernel-livepatch-6_4_0-150600_10_20-rt-14-150600.2.1
    • kernel-livepatch-SLE15-SP6-RT_Update_9-debugsource-9-150600.2.1
    • kernel-livepatch-SLE15-SP6-RT_Update_6-debugsource-14-150600.2.1
    • kernel-livepatch-6_4_0-150600_10_23-rt-debuginfo-14-150600.2.1
    • kernel-livepatch-SLE15-SP6-RT_Update_7-debugsource-14-150600.2.1
    • kernel-livepatch-6_4_0-150600_10_23-rt-14-150600.2.1
    • kernel-livepatch-SLE15-SP6-RT_Update_8-debugsource-9-150600.2.1
    • kernel-livepatch-6_4_0-150600_10_29-rt-debuginfo-9-150600.2.1
    • kernel-livepatch-6_4_0-150600_10_29-rt-9-150600.2.1
    • kernel-livepatch-SLE15-SP6-RT_Update_5-debugsource-17-150600.2.1
    • kernel-livepatch-6_4_0-150600_10_17-rt-17-150600.2.1
    • kernel-livepatch-6_4_0-150600_10_17-rt-debuginfo-17-150600.2.1

References: