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).
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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).
05 / REFERENCES
Further evidence
- 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
- https://www.suse.com/support/update/announcement/2026/suse-su-20261557-1/