Security update for the Linux Kernel

Announcement ID:	SUSE-SU-2026:1574-1
Release Date:	2026-04-23T15:52:59Z
Rating:	important
References:	bsc#1215492 bsc#1246057 bsc#1256675 bsc#1257773 bsc#1259797 bsc#1260005 bsc#1260009 bsc#1260347 bsc#1260562
Cross-References:	CVE-2025-38234 CVE-2025-68818 CVE-2026-23103 CVE-2026-23243 CVE-2026-23272 CVE-2026-23274 CVE-2026-23317
CVSS scores:	CVE-2025-38234 ( SUSE ): 5.7 CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVE-2025-38234 ( SUSE ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2025-38234 ( NVD ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2025-68818 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2026-23103 ( SUSE ): 6.8 CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVE-2026-23103 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2026-23103 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2026-23103 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-23243 ( 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-2026-23243 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-23243 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-23272 ( 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-2026-23272 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-23272 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-23274 ( 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-2026-23274 ( SUSE ): 7.0 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-23274 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-23317 ( SUSE ): 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVE-2026-23317 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2026-23317 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Products:	openSUSE Leap 15.5 SUSE Linux Enterprise Micro 5.5

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

Description:

The SUSE Linux Enterprise 15 SP5 RT kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2025-38234: sched/rt: Fix race in push_rt_task (bsc#1246057).
• CVE-2025-68818: scsi: Revert "scsi: qla2xxx: Perform lockless command completion in abort path" (bsc#1256675).
• 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-2026-23317: drm/vmwgfx: Return the correct value in vmw_translate_ptr functions (bsc#1260562).

The following non-security bugs were fixed:

• PCI/ACS: Fix 'pci=config_acs=' parameter (git-fixes).
• PCI: Fix lock symmetry in pci_slot_unlock() (git-fixes).
• PCI: Fix pci_slot_trylock() error handling (git-fixes).
• PCI: dwc: ep: Return -ENOMEM for allocation failures (git-fixes).
• PCI: tegra194: Fix duplicate PLL disable in pex_ep_event_pex_rst_assert() (git-fixes).
• nvme-fc: use ctrl state getter (git-fixes bsc#1215492).
• nvme-pci: fix queue unquiesce check on slot_reset (git-fixes).
• nvme-pci: skip nvme_write_sq_db on empty rqlist (git-fixes).
• x86/platform/uv: Handle deconfigured sockets (bsc#1260347).

Special Instructions and Notes:

• Please reboot the system after installing this update.

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 15.5
  zypper in -t patch SUSE-2026-1574=1
• SUSE Linux Enterprise Micro 5.5
  zypper in -t patch SUSE-SLE-Micro-5.5-2026-1574=1

Package List:

• openSUSE Leap 15.5 (noarch)
  • kernel-source-rt-5.14.21-150500.13.127.1
  • kernel-devel-rt-5.14.21-150500.13.127.1
• openSUSE Leap 15.5 (x86_64)
  • dlm-kmp-rt-5.14.21-150500.13.127.1
  • kernel-rt-optional-debuginfo-5.14.21-150500.13.127.1
  • kernel-rt-devel-5.14.21-150500.13.127.1
  • kernel-rt-optional-5.14.21-150500.13.127.1
  • reiserfs-kmp-rt-5.14.21-150500.13.127.1
  • kernel-rt_debug-vdso-5.14.21-150500.13.127.1
  • kernel-rt-extra-5.14.21-150500.13.127.1
  • ocfs2-kmp-rt-debuginfo-5.14.21-150500.13.127.1
  • kernel-rt-devel-debuginfo-5.14.21-150500.13.127.1
  • ocfs2-kmp-rt-5.14.21-150500.13.127.1
  • kselftests-kmp-rt-debuginfo-5.14.21-150500.13.127.1
  • gfs2-kmp-rt-5.14.21-150500.13.127.1
  • kernel-rt-debugsource-5.14.21-150500.13.127.1
  • kernel-rt_debug-vdso-debuginfo-5.14.21-150500.13.127.1
  • reiserfs-kmp-rt-debuginfo-5.14.21-150500.13.127.1
  • kernel-syms-rt-5.14.21-150500.13.127.1
  • kernel-rt-livepatch-5.14.21-150500.13.127.1
  • dlm-kmp-rt-debuginfo-5.14.21-150500.13.127.1
  • kernel-rt-debuginfo-5.14.21-150500.13.127.1
  • kernel-rt_debug-devel-debuginfo-5.14.21-150500.13.127.1
  • kselftests-kmp-rt-5.14.21-150500.13.127.1
  • cluster-md-kmp-rt-debuginfo-5.14.21-150500.13.127.1
  • cluster-md-kmp-rt-5.14.21-150500.13.127.1
  • gfs2-kmp-rt-debuginfo-5.14.21-150500.13.127.1
  • kernel-rt-livepatch-devel-5.14.21-150500.13.127.1
  • kernel-rt-vdso-debuginfo-5.14.21-150500.13.127.1
  • kernel-rt-vdso-5.14.21-150500.13.127.1
  • kernel-rt_debug-devel-5.14.21-150500.13.127.1
  • kernel-rt-extra-debuginfo-5.14.21-150500.13.127.1
  • kernel-rt_debug-debuginfo-5.14.21-150500.13.127.1
  • kernel-rt_debug-debugsource-5.14.21-150500.13.127.1
• openSUSE Leap 15.5 (nosrc x86_64)
  • kernel-rt-5.14.21-150500.13.127.1
  • kernel-rt_debug-5.14.21-150500.13.127.1
• SUSE Linux Enterprise Micro 5.5 (noarch)
  • kernel-source-rt-5.14.21-150500.13.127.1
  • kernel-devel-rt-5.14.21-150500.13.127.1
• SUSE Linux Enterprise Micro 5.5 (nosrc x86_64)
  • kernel-rt-5.14.21-150500.13.127.1
• SUSE Linux Enterprise Micro 5.5 (x86_64)
  • kernel-rt-debuginfo-5.14.21-150500.13.127.1
  • kernel-rt-debugsource-5.14.21-150500.13.127.1

References:

• https://www.suse.com/security/cve/CVE-2025-38234.html
• https://www.suse.com/security/cve/CVE-2025-68818.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-2026-23317.html
• https://bugzilla.suse.com/show_bug.cgi?id=1215492
• https://bugzilla.suse.com/show_bug.cgi?id=1246057
• https://bugzilla.suse.com/show_bug.cgi?id=1256675
• 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=1260347
• https://bugzilla.suse.com/show_bug.cgi?id=1260562