Security update for the Linux Kernel
The SUSE Linux Enterprise 12 SP5 kernel was updated to fix various security issues The following security issues were fixed: - CVE-2025-54518: x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache (bsc#1264013). - CVE-2026-46300: net: skbuff: propagate shared-frag marker through pskb_copy() (bsc#1265209). - CVE-2026-43284: xfrm: esp: avoid in-place decrypt on shared skb frags (bsc#1264449). - CVE-2026-46333: Fixed logic bug in the Linux kernel's __ptrace_may_access() function (bsc#1265308).
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
The SUSE Linux Enterprise 12 SP5 kernel was updated to fix various security issues The following security issues were fixed: - CVE-2025-54518: x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache (bsc#1264013). - CVE-2026-46300: net: skbuff: propagate shared-frag marker through pskb_copy() (bsc#1265209). - CVE-2026-43284: xfrm: esp: avoid in-place decrypt on shared skb frags (bsc#1264449). - CVE-2026-46333: Fixed logic bug in the Linux kernel's __ptrace_may_access() function (bsc#1265308).
05 / REFERENCES
Further evidence
- https://bugzilla.suse.com/1264013
- https://bugzilla.suse.com/1264449
- https://bugzilla.suse.com/1265209
- https://bugzilla.suse.com/1265308
- https://www.suse.com/security/cve/CVE-2025-54518
- https://www.suse.com/security/cve/CVE-2026-43284
- https://www.suse.com/security/cve/CVE-2026-46300
- https://www.suse.com/security/cve/CVE-2026-46333
- https://www.suse.com/support/update/announcement/2026/suse-su-20261904-1/