{"id":"CVE-2026-80820","summary":"xfs: don't livelock in scrub on a circular unlinked list","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: don't livelock in scrub on a circular unlinked list\n\nLOLLM points out that online fsck can livelock if an unlinked inode list\ncontains a loop.  Use a bitmap to detect cycles.","modified":"2026-09-06T03:46:51.541637192Z","published":"2026-09-04T15:13:41.355Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80820.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/159d162fe80bd56573cafde5801bd5a90a3dd1ac"},{"type":"WEB","url":"https://git.kernel.org/stable/c/527eaaefddb6ec5c83a06c9a1559960dd6361753"},{"type":"WEB","url":"https://git.kernel.org/stable/c/56407a61a8bb85b884de802d39635abdb0ea7408"},{"type":"WEB","url":"https://git.kernel.org/stable/c/599453f83458b57995290a1d31200c263e2c2691"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80820.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-80820"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"a12890aebb895951720ff884eab1c99a30645b29"},{"fixed":"599453f83458b57995290a1d31200c263e2c2691"},{"fixed":"159d162fe80bd56573cafde5801bd5a90a3dd1ac"},{"fixed":"56407a61a8bb85b884de802d39635abdb0ea7408"},{"fixed":"527eaaefddb6ec5c83a06c9a1559960dd6361753"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80820.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"4.15.0"},{"fixed":"6.12.106"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.47"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.1.11"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80820.json"}}],"schema_version":"1.9.0"}