Security update for the Linux Kernel
The SUSE Linux Enterprise Micro 6.0 and Micro 6.1 RT 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-2026-43500: rxrpc: unshare DATA/RESPONSE packets when paged frags are present (bsc#1264450). The following non security issues were fixed: - config: s390x/ppc64le: disable unsupported CONFIG_AFS_FS and CONFIG_AF_RXRPC (bsc#1264450). - io-wq: check that the predecessor is hashed in io_wq_remove_pending() (git-fixes).
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
The SUSE Linux Enterprise Micro 6.0 and Micro 6.1 RT 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-2026-43500: rxrpc: unshare DATA/RESPONSE packets when paged frags are present (bsc#1264450). The following non security issues were fixed: - config: s390x/ppc64le: disable unsupported CONFIG_AFS_FS and CONFIG_AF_RXRPC (bsc#1264450). - io-wq: check that the predecessor is hashed in io_wq_remove_pending() (git-fixes).
05 / REFERENCES
Further evidence
- https://bugzilla.suse.com/1264013
- https://bugzilla.suse.com/1264450
- https://bugzilla.suse.com/1265209
- https://www.suse.com/security/cve/CVE-2025-54518
- https://www.suse.com/security/cve/CVE-2026-43500
- https://www.suse.com/security/cve/CVE-2026-46300
- https://www.suse.com/support/update/announcement/2026/suse-su-202621690-1/