{"id":"CVE-2026-98081","state":"PUBLISHED","title":"btrfs: zoned: finish active block group cleanup if call_zone_finish() fails","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: zoned: finish active block group cleanup if call_zone_finish() fails\n\ndo_zone_finish() clears BLOCK_GROUP_FLAG_ZONE_IS_ACTIVE before finishing\nthe zones. If call_zone_finish() then fails it returned early, leaving the\nnow inactive block group on fs_info->zone_active_bgs, leaking its\nreference, the BTRFS_FS_NEED_ZONE_FINISH waiters are never woken, and as\nits alloc_offset equals the zone capacity btrfs_zone_finish_one_bg() keeps\nselecting it, spinning btrfs_zoned_activate_one_bg().\n\nFall through to the cleanup on failure too and return the error, but keep\nthe block group read-only as its zones are left inconsistent.","publishedAt":"2026-09-25T10:24:18.091Z","updatedAt":"2026-10-21T12:54:24.847Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d70cbdda75da3f258118a558c087157e073229fb","status":"affected","lessThan":"433d52b196a689b18dcfadc7cf6c784f0e5cc7c9","versionType":"git"},{"version":"d70cbdda75da3f258118a558c087157e073229fb","status":"affected","lessThan":"36b9cdab44848f25879ca625275c92b007f84653","versionType":"git"},{"version":"d70cbdda75da3f258118a558c087157e073229fb","status":"affected","lessThan":"40370f02a1ca3760f8925ffcbe76eb4d91ea758d","versionType":"git"},{"version":"d70cbdda75da3f258118a558c087157e073229fb","status":"affected","lessThan":"e1b168a53174b385e3548bfbd079513b22ac240c","versionType":"git"},{"version":"d70cbdda75da3f258118a558c087157e073229fb","status":"affected","lessThan":"a18a6b93a2843b9d103d3456bbd4b3f90282a379","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/btrfs/zoned.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.19","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.111","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.53","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.7","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/btrfs/zoned.c"]}],"references":["https://git.kernel.org/stable/c/433d52b196a689b18dcfadc7cf6c784f0e5cc7c9","https://git.kernel.org/stable/c/36b9cdab44848f25879ca625275c92b007f84653","https://git.kernel.org/stable/c/40370f02a1ca3760f8925ffcbe76eb4d91ea758d","https://git.kernel.org/stable/c/e1b168a53174b385e3548bfbd079513b22ac240c","https://git.kernel.org/stable/c/a18a6b93a2843b9d103d3456bbd4b3f90282a379"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:43.249Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/98xxx/CVE-2026-98081.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98081","state":"PUBLISHED","datePublished":"2026-09-25T10:24:18.091Z","dateUpdated":"2026-10-21T12:54:24.847Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-09-25T10:19:56.075Z"},"containers":{"cna":{"title":"btrfs: zoned: finish active block group cleanup if call_zone_finish() fails","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: zoned: finish active block group cleanup if call_zone_finish() fails\n\ndo_zone_finish() clears BLOCK_GROUP_FLAG_ZONE_IS_ACTIVE before finishing\nthe zones. If call_zone_finish() then fails it returned early, leaving the\nnow inactive block group on fs_info->zone_active_bgs, leaking its\nreference, the BTRFS_FS_NEED_ZONE_FINISH waiters are never woken, and as\nits alloc_offset equals the zone capacity btrfs_zone_finish_one_bg() keeps\nselecting it, spinning btrfs_zoned_activate_one_bg().\n\nFall through to the cleanup on failure too and return the error, but keep\nthe block group read-only as its zones are left inconsistent."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"d70cbdda75da3f258118a558c087157e073229fb","status":"affected","lessThan":"433d52b196a689b18dcfadc7cf6c784f0e5cc7c9","versionType":"git"},{"version":"d70cbdda75da3f258118a558c087157e073229fb","status":"affected","lessThan":"36b9cdab44848f25879ca625275c92b007f84653","versionType":"git"},{"version":"d70cbdda75da3f258118a558c087157e073229fb","status":"affected","lessThan":"40370f02a1ca3760f8925ffcbe76eb4d91ea758d","versionType":"git"},{"version":"d70cbdda75da3f258118a558c087157e073229fb","status":"affected","lessThan":"e1b168a53174b385e3548bfbd079513b22ac240c","versionType":"git"},{"version":"d70cbdda75da3f258118a558c087157e073229fb","status":"affected","lessThan":"a18a6b93a2843b9d103d3456bbd4b3f90282a379","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/btrfs/zoned.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.19","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.111","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.53","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.2.7","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/btrfs/zoned.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/433d52b196a689b18dcfadc7cf6c784f0e5cc7c9"},{"url":"https://git.kernel.org/stable/c/36b9cdab44848f25879ca625275c92b007f84653"},{"url":"https://git.kernel.org/stable/c/40370f02a1ca3760f8925ffcbe76eb4d91ea758d"},{"url":"https://git.kernel.org/stable/c/e1b168a53174b385e3548bfbd079513b22ac240c"},{"url":"https://git.kernel.org/stable/c/a18a6b93a2843b9d103d3456bbd4b3f90282a379"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-21T12:54:24.847Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"6.12.111"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"6.18.53"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"7.2.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.19","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}