{"id":"CVE-2026-80547","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-80547","summary":"s390/vfio_ccw: Implement a crw lock","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/vfio_ccw: Implement a crw lock\n\nUnlike the channel_program struct, which covers synchronous I/O\nsubmissions and asynchronous interrupts, the CRW region relies\nexclusively on asynchronous events coming from hardware.\n\nImplement a lock to manage the list of those payloads, to ensure\nthey are read cohesively.","published":"2026-08-26T14:37:18.159Z","modified":"2026-08-28T03:47:24.074031811Z","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"5.15.218"}],"fix":null,"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/0edd222730a9d7ec98368aaf1d40ee2d8d862e61"},{"type":"WEB","url":"https://git.kernel.org/stable/c/16b0798024c0e9117e395829ddbbe70981c79d9c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3c94d4179bcc19e01b28db634c07a58b28116209"},{"type":"WEB","url":"https://git.kernel.org/stable/c/49fa26b0df009dc1f420980bd71780e70615b83b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7902be374cbfc11c3435e1e87bf22195bf06a558"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a3d60ae24183eee352c8e87a0ff94c97cd87f156"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c76c4ee72bfc3824f4f491f18ed0323bf2e2daf9"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80547.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80547"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-28T03:47:24.074031811Z"}}