SUSE-SU-2026:1557-1
Vulnerability Summary
Timeline
Description
Security update for the Linux Kernel The SUSE Linux Enterprise 15 SP4 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). The following non-security bugs were fixed: - watchdog/perf: properly initialize the turbo mode timestamp and rearm counter (bsc#1256504).
Affected Systems
- suse•kernel-rt&distro=SUSE Linux Enterprise Micro 5.3
< 5.14.21-150400.15.148.1
- suse•kernel-rt&distro=SUSE Linux Enterprise Micro 5.4
< 5.14.21-150400.15.148.1
- suse•kernel-source-rt&distro=SUSE Linux Enterprise Micro 5.3
< 5.14.21-150400.15.148.1
- suse•kernel-source-rt&distro=SUSE Linux Enterprise Micro 5.4
< 5.14.21-150400.15.148.1
References (14)
- https://www.suse.com/support/update/announcement/2026/suse-su-20261557-1/
- https://bugzilla.suse.com/1246057
- https://bugzilla.suse.com/1256504
- https://bugzilla.suse.com/1256675
- https://bugzilla.suse.com/1257773
- https://bugzilla.suse.com/1259797
- https://bugzilla.suse.com/1260005
- https://bugzilla.suse.com/1260009
- https://www.suse.com/security/cve/CVE-2025-38234
- https://www.suse.com/security/cve/CVE-2025-68818
- https://www.suse.com/security/cve/CVE-2026-23103
- https://www.suse.com/security/cve/CVE-2026-23243
- https://www.suse.com/security/cve/CVE-2026-23272
- https://www.suse.com/security/cve/CVE-2026-23274