Stay Secure with the Latest Linux Advisories

security advisorysecurity issueimportant

openSUSE Leap 15.5 Important Kernel Security Update 2026-1574-1

An update that solves seven vulnerabilities and has two security fixes can now be installed.. # 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 theSUSE 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 . Seven security fixes for kernel vulnerabilities available in SUSE update. Ensure your system is secure and patched.. security update, kernel patch, SUSE Linux, important fixes. . Severity: Important. LinuxSecurity.com Team

Apr 23, 2026 •Important SuSE