Security update for the Linux Kernel RT (Live Patch 7 for SUSE Linux Enterprise Micro 6.0)
This update for the SUSE Linux Enterprise Kernel 6.4.0-30.1 fixes various security issues The following security issues were fixed: - CVE-2025-38375: virtio-net: ensure the received length does not exceed allocated size (bsc#1258073). - CVE-2025-39977: futex: Prevent use-after-free during requeue-PI (bsc#1252048). - CVE-2025-71066: net/sched: ets: Always remove class from active list before deleting in ets_qdisc_change (bsc#1258005). - CVE-2026-23004: dst: fix races in rt6_uncached_list_del() and rt_del_uncached_list() (bsc#1258655). - CVE-2026-23204: net/sched: cls_u32: use skb_header_pointer_careful() (bsc#1259126). - CVE-2026-31431: crypto: algif_aead - Revert to operating out-of-place (bsc#1263689).
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
This update for the SUSE Linux Enterprise Kernel 6.4.0-30.1 fixes various security issues The following security issues were fixed: - CVE-2025-38375: virtio-net: ensure the received length does not exceed allocated size (bsc#1258073). - CVE-2025-39977: futex: Prevent use-after-free during requeue-PI (bsc#1252048). - CVE-2025-71066: net/sched: ets: Always remove class from active list before deleting in ets_qdisc_change (bsc#1258005). - CVE-2026-23004: dst: fix races in rt6_uncached_list_del() and rt_del_uncached_list() (bsc#1258655). - CVE-2026-23204: net/sched: cls_u32: use skb_header_pointer_careful() (bsc#1259126). - CVE-2026-31431: crypto: algif_aead - Revert to operating out-of-place (bsc#1263689).
05 / REFERENCES
Further evidence
- https://bugzilla.suse.com/1252048
- https://bugzilla.suse.com/1258005
- https://bugzilla.suse.com/1258073
- https://bugzilla.suse.com/1258655
- https://bugzilla.suse.com/1259126
- https://bugzilla.suse.com/1263689
- https://www.suse.com/security/cve/CVE-2025-38375
- https://www.suse.com/security/cve/CVE-2025-39977
- https://www.suse.com/security/cve/CVE-2025-71066
- https://www.suse.com/security/cve/CVE-2026-23004
- https://www.suse.com/security/cve/CVE-2026-23204
- https://www.suse.com/security/cve/CVE-2026-31431
- https://www.suse.com/support/update/announcement/2026/suse-su-202621507-1/