Security update for the Linux Kernel RT (Live Patch 0 for SUSE Linux Enterprise 16)

Announcement ID: SUSE-SU-2026:20645-1
Release Date: 2026-03-04T10:13:56Z
Rating: important
References:
Cross-References:
CVSS scores:
  • CVE-2025-38352 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  • CVE-2025-38352 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2025-38352 ( NVD ): 7.4 CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE-2025-39698 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2025-39698 ( NVD ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
  • CVE-2025-39698 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • CVE-2025-39742 ( 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-2025-39742 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
  • CVE-2025-39742 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • CVE-2025-40129 ( SUSE ): 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
  • CVE-2025-40129 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • CVE-2025-40186 ( SUSE ): 7.3 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
  • CVE-2025-40186 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products:
  • SUSE Linux Micro 6.2

An update that solves five vulnerabilities and has two fixes can now be installed.

Description:

This update for the SUSE Linux Enterprise kernel 6.12.0-160000.5.1 fixes various security issues

The following security issues were fixed:

  • CVE-2025-38352: posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del() (bsc#1249205).
  • CVE-2025-39698: io_uring/futex: ensure io_futex_wait() cleans up properly on failure (bsc#1250190).
  • CVE-2025-39742: RDMA: hfi1: fix possible divide-by-zero in find_hw_thread_mask() (bsc#1249480).
  • CVE-2025-40129: sunrpc: fix null pointer dereference on zero-length checksum (bsc#1253473).
  • CVE-2025-40186: tcp: Don't call reqsk_fastopen_remove() in tcp_conn_request() (bsc#1253439).

The following non security issue was fixed:

  • bsc#1249241: fix addr_bit_set() issue on big-endian machines BITOP_BE32_SWIZZLE ought to be defined depending on the target's endianess, but the livepatch includes only the little-endian variant. Fix that. (bsc#1249241 bsc#1256928).

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 Micro 6.2
    zypper in -t patch SUSE-SL-Micro-6.2-351=1

Package List:

  • SUSE Linux Micro 6.2 (x86_64)
    • kernel-livepatch-6_12_0-160000_5-rt-debuginfo-5-160000.3.4
    • kernel-livepatch-SLE16-RT_Update_0-debugsource-5-160000.3.4
    • kernel-livepatch-6_12_0-160000_5-rt-5-160000.3.4

References: