{"id":"CVE-2026-45974","state":"PUBLISHED","title":"btrfs: fix invalid leaf access in btrfs_quota_enable() if ref key not found","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix invalid leaf access in btrfs_quota_enable() if ref key not found\n\nIf btrfs_search_slot_for_read() returns 1, it means we did not find any\nkey greater than or equals to the key we asked for, meaning we have\nreached the end of the tree and therefore the path is not valid. If\nthis happens we need to break out of the loop and stop, instead of\ncontinuing and accessing an invalid path.","publishedAt":"2026-05-27T12:18:33.107Z","updatedAt":"2026-05-27T12:18:33.107Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5223cc60b40ae525ae6c94e98824129f1a5b4ae5","status":"affected","lessThan":"023545e272f369d487e6a986c1e321c6e04be1da","versionType":"git"},{"version":"5223cc60b40ae525ae6c94e98824129f1a5b4ae5","status":"affected","lessThan":"fd4913a53e3b54ad7e161847291439fe445d6356","versionType":"git"},{"version":"5223cc60b40ae525ae6c94e98824129f1a5b4ae5","status":"affected","lessThan":"b5b8ade9da452086e78f5d519b90d3769e354853","versionType":"git"},{"version":"5223cc60b40ae525ae6c94e98824129f1a5b4ae5","status":"affected","lessThan":"1ee1d006c9fe4d6be5527ab1c84216b80cccbe40","versionType":"git"},{"version":"5223cc60b40ae525ae6c94e98824129f1a5b4ae5","status":"affected","lessThan":"0761447f6f51e1c7997960d8e6559337deed6729","versionType":"git"},{"version":"5223cc60b40ae525ae6c94e98824129f1a5b4ae5","status":"affected","lessThan":"d7cf2314dd5e8661c05d076cd627eea9a7f76616","versionType":"git"},{"version":"5223cc60b40ae525ae6c94e98824129f1a5b4ae5","status":"affected","lessThan":"b2bd557b75b760e4b9d209112bda19314bd64558","versionType":"git"},{"version":"5223cc60b40ae525ae6c94e98824129f1a5b4ae5","status":"affected","lessThan":"ecb7c2484cfc83a93658907580035a8adf1e0a92","versionType":"git"},{"version":"ecce1be9f2a366990d0e75dd249fb324e83c34a9","status":"affected","versionType":"git"},{"version":"5.9.7","status":"affected","lessThan":"5.10","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/btrfs/qgroup.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.10","versionType":"semver"},{"version":"5.10.252","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.202","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.165","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.128","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.75","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.14","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.4","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/btrfs/qgroup.c"]}],"references":["https://git.kernel.org/stable/c/023545e272f369d487e6a986c1e321c6e04be1da","https://git.kernel.org/stable/c/fd4913a53e3b54ad7e161847291439fe445d6356","https://git.kernel.org/stable/c/b5b8ade9da452086e78f5d519b90d3769e354853","https://git.kernel.org/stable/c/1ee1d006c9fe4d6be5527ab1c84216b80cccbe40","https://git.kernel.org/stable/c/0761447f6f51e1c7997960d8e6559337deed6729","https://git.kernel.org/stable/c/d7cf2314dd5e8661c05d076cd627eea9a7f76616","https://git.kernel.org/stable/c/b2bd557b75b760e4b9d209112bda19314bd64558","https://git.kernel.org/stable/c/ecb7c2484cfc83a93658907580035a8adf1e0a92"],"weaknesses":[],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/45xxx/CVE-2026-45974.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-45974","state":"PUBLISHED","datePublished":"2026-05-27T12:18:33.107Z","dateUpdated":"2026-05-27T12:18:33.107Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-13T15:03:33.090Z"},"containers":{"cna":{"title":"btrfs: fix invalid leaf access in btrfs_quota_enable() if ref key not found","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix invalid leaf access in btrfs_quota_enable() if ref key not found\n\nIf btrfs_search_slot_for_read() returns 1, it means we did not find any\nkey greater than or equals to the key we asked for, meaning we have\nreached the end of the tree and therefore the path is not valid. If\nthis happens we need to break out of the loop and stop, instead of\ncontinuing and accessing an invalid path."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5223cc60b40ae525ae6c94e98824129f1a5b4ae5","status":"affected","lessThan":"023545e272f369d487e6a986c1e321c6e04be1da","versionType":"git"},{"version":"5223cc60b40ae525ae6c94e98824129f1a5b4ae5","status":"affected","lessThan":"fd4913a53e3b54ad7e161847291439fe445d6356","versionType":"git"},{"version":"5223cc60b40ae525ae6c94e98824129f1a5b4ae5","status":"affected","lessThan":"b5b8ade9da452086e78f5d519b90d3769e354853","versionType":"git"},{"version":"5223cc60b40ae525ae6c94e98824129f1a5b4ae5","status":"affected","lessThan":"1ee1d006c9fe4d6be5527ab1c84216b80cccbe40","versionType":"git"},{"version":"5223cc60b40ae525ae6c94e98824129f1a5b4ae5","status":"affected","lessThan":"0761447f6f51e1c7997960d8e6559337deed6729","versionType":"git"},{"version":"5223cc60b40ae525ae6c94e98824129f1a5b4ae5","status":"affected","lessThan":"d7cf2314dd5e8661c05d076cd627eea9a7f76616","versionType":"git"},{"version":"5223cc60b40ae525ae6c94e98824129f1a5b4ae5","status":"affected","lessThan":"b2bd557b75b760e4b9d209112bda19314bd64558","versionType":"git"},{"version":"5223cc60b40ae525ae6c94e98824129f1a5b4ae5","status":"affected","lessThan":"ecb7c2484cfc83a93658907580035a8adf1e0a92","versionType":"git"},{"version":"ecce1be9f2a366990d0e75dd249fb324e83c34a9","status":"affected","versionType":"git"},{"version":"5.9.7","status":"affected","lessThan":"5.10","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/btrfs/qgroup.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.10","versionType":"semver"},{"version":"5.10.252","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.202","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.165","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.128","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.75","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.14","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.4","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/btrfs/qgroup.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/023545e272f369d487e6a986c1e321c6e04be1da"},{"url":"https://git.kernel.org/stable/c/fd4913a53e3b54ad7e161847291439fe445d6356"},{"url":"https://git.kernel.org/stable/c/b5b8ade9da452086e78f5d519b90d3769e354853"},{"url":"https://git.kernel.org/stable/c/1ee1d006c9fe4d6be5527ab1c84216b80cccbe40"},{"url":"https://git.kernel.org/stable/c/0761447f6f51e1c7997960d8e6559337deed6729"},{"url":"https://git.kernel.org/stable/c/d7cf2314dd5e8661c05d076cd627eea9a7f76616"},{"url":"https://git.kernel.org/stable/c/b2bd557b75b760e4b9d209112bda19314bd64558"},{"url":"https://git.kernel.org/stable/c/ecb7c2484cfc83a93658907580035a8adf1e0a92"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-27T12:18:33.107Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"5.10.252"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"5.15.202"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"6.1.165"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"6.6.128"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"6.12.75"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"6.18.14"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"6.19.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"7.0"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.9.7"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}