Security update for the Linux Kernel RT (Live Patch 18 for SUSE Linux Enterprise Micro 6.0)
This update for the SUSE Linux Enterprise Kernel 6.4.0-40.1 fixes various security issues The following security issues were fixed: - CVE-2025-54518: AMD-SN-7052: CPU OP Cache Corruption (bsc#1264096). - CVE-2026-23243: RDMA/umad: Reject negative data_len in ib_umad_write (bsc#1259798). - CVE-2026-23274: netfilter: xt_IDLETIMER: reject rev0 reuse of ALARM timer labels (bsc#1260908). - CVE-2026-46300: FragNesia attack: another xfrm/esp based local root exploit (bsc#1265224). - CVE-2026-46333: ptrace: slightly saner 'get_dumpable()' logic (bsc#1265384).
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
This update for the SUSE Linux Enterprise Kernel 6.4.0-40.1 fixes various security issues The following security issues were fixed: - CVE-2025-54518: AMD-SN-7052: CPU OP Cache Corruption (bsc#1264096). - CVE-2026-23243: RDMA/umad: Reject negative data_len in ib_umad_write (bsc#1259798). - CVE-2026-23274: netfilter: xt_IDLETIMER: reject rev0 reuse of ALARM timer labels (bsc#1260908). - CVE-2026-46300: FragNesia attack: another xfrm/esp based local root exploit (bsc#1265224). - CVE-2026-46333: ptrace: slightly saner 'get_dumpable()' logic (bsc#1265384).
05 / REFERENCES
Further evidence
- https://bugzilla.suse.com/1259798
- https://bugzilla.suse.com/1260908
- https://bugzilla.suse.com/1264096
- https://bugzilla.suse.com/1265224
- https://bugzilla.suse.com/1265384
- https://www.suse.com/security/cve/CVE-2025-54518
- https://www.suse.com/security/cve/CVE-2026-23243
- https://www.suse.com/security/cve/CVE-2026-23274
- 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-202621930-1/