{"id":"CVE-2026-45899","state":"PUBLISHED","title":"ext4: drop extent cache when splitting extent fails","description":"In the Linux kernel, the following vulnerability has been resolved:\n\next4: drop extent cache when splitting extent fails\n\nWhen the split extent fails, we might leave some extents still being\nprocessed and return an error directly, which will result in stale\nextent entries remaining in the extent status tree. So drop all of the\nremaining potentially stale extents if the splitting fails.","publishedAt":"2026-05-27T12:17:08.447Z","updatedAt":"2026-10-30T12:25:42.327Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"107a7bd31ac003e42c0f966aa8e5b26947de6024","status":"affected","lessThan":"6e54f8dfee359bbd58086c883ea8cffd5312999d","versionType":"git"},{"version":"107a7bd31ac003e42c0f966aa8e5b26947de6024","status":"affected","lessThan":"337506dc652383c80839edb8d8dcdd8ff2129b4f","versionType":"git"},{"version":"107a7bd31ac003e42c0f966aa8e5b26947de6024","status":"affected","lessThan":"2943bdbcdef6f74d4235ad0e57b225104dcad8ab","versionType":"git"},{"version":"107a7bd31ac003e42c0f966aa8e5b26947de6024","status":"affected","lessThan":"dc7c9b9d03a59a7fe483574531327e650a4b4adc","versionType":"git"},{"version":"107a7bd31ac003e42c0f966aa8e5b26947de6024","status":"affected","lessThan":"120c6bd7ca9d3e80a968b758cbb3fbd67570f132","versionType":"git"},{"version":"107a7bd31ac003e42c0f966aa8e5b26947de6024","status":"affected","lessThan":"808f3191498f300174523c54cab101e18795ae4e","versionType":"git"},{"version":"107a7bd31ac003e42c0f966aa8e5b26947de6024","status":"affected","lessThan":"31bf37cf53ede8145e2bc62da803d4506da92975","versionType":"git"},{"version":"107a7bd31ac003e42c0f966aa8e5b26947de6024","status":"affected","lessThan":"79b592e8f1b435796cbc2722190368e3e8ffd7a1","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ext4/extents.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.12","versionType":"semver"},{"version":"5.10.253","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.203","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.130","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/ext4/extents.c"]}],"references":["https://git.kernel.org/stable/c/6e54f8dfee359bbd58086c883ea8cffd5312999d","https://git.kernel.org/stable/c/337506dc652383c80839edb8d8dcdd8ff2129b4f","https://git.kernel.org/stable/c/2943bdbcdef6f74d4235ad0e57b225104dcad8ab","https://git.kernel.org/stable/c/dc7c9b9d03a59a7fe483574531327e650a4b4adc","https://git.kernel.org/stable/c/120c6bd7ca9d3e80a968b758cbb3fbd67570f132","https://git.kernel.org/stable/c/808f3191498f300174523c54cab101e18795ae4e","https://git.kernel.org/stable/c/31bf37cf53ede8145e2bc62da803d4506da92975","https://git.kernel.org/stable/c/79b592e8f1b435796cbc2722190368e3e8ffd7a1"],"weaknesses":[],"ingestedAt":"2026-10-30T12:42:04.495Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/45xxx/CVE-2026-45899.json","commit":"db8103c5921aac81d5d90efcf3745980dafabf49","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-45899","state":"PUBLISHED","datePublished":"2026-05-27T12:17:08.447Z","dateUpdated":"2026-10-30T12:25:42.327Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-13T15:03:33.083Z"},"containers":{"cna":{"title":"ext4: drop extent cache when splitting extent fails","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\next4: drop extent cache when splitting extent fails\n\nWhen the split extent fails, we might leave some extents still being\nprocessed and return an error directly, which will result in stale\nextent entries remaining in the extent status tree. So drop all of the\nremaining potentially stale extents if the splitting fails."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"107a7bd31ac003e42c0f966aa8e5b26947de6024","status":"affected","lessThan":"6e54f8dfee359bbd58086c883ea8cffd5312999d","versionType":"git"},{"version":"107a7bd31ac003e42c0f966aa8e5b26947de6024","status":"affected","lessThan":"337506dc652383c80839edb8d8dcdd8ff2129b4f","versionType":"git"},{"version":"107a7bd31ac003e42c0f966aa8e5b26947de6024","status":"affected","lessThan":"2943bdbcdef6f74d4235ad0e57b225104dcad8ab","versionType":"git"},{"version":"107a7bd31ac003e42c0f966aa8e5b26947de6024","status":"affected","lessThan":"dc7c9b9d03a59a7fe483574531327e650a4b4adc","versionType":"git"},{"version":"107a7bd31ac003e42c0f966aa8e5b26947de6024","status":"affected","lessThan":"120c6bd7ca9d3e80a968b758cbb3fbd67570f132","versionType":"git"},{"version":"107a7bd31ac003e42c0f966aa8e5b26947de6024","status":"affected","lessThan":"808f3191498f300174523c54cab101e18795ae4e","versionType":"git"},{"version":"107a7bd31ac003e42c0f966aa8e5b26947de6024","status":"affected","lessThan":"31bf37cf53ede8145e2bc62da803d4506da92975","versionType":"git"},{"version":"107a7bd31ac003e42c0f966aa8e5b26947de6024","status":"affected","lessThan":"79b592e8f1b435796cbc2722190368e3e8ffd7a1","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ext4/extents.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.12","versionType":"semver"},{"version":"5.10.253","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.203","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.130","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/ext4/extents.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/6e54f8dfee359bbd58086c883ea8cffd5312999d"},{"url":"https://git.kernel.org/stable/c/337506dc652383c80839edb8d8dcdd8ff2129b4f"},{"url":"https://git.kernel.org/stable/c/2943bdbcdef6f74d4235ad0e57b225104dcad8ab"},{"url":"https://git.kernel.org/stable/c/dc7c9b9d03a59a7fe483574531327e650a4b4adc"},{"url":"https://git.kernel.org/stable/c/120c6bd7ca9d3e80a968b758cbb3fbd67570f132"},{"url":"https://git.kernel.org/stable/c/808f3191498f300174523c54cab101e18795ae4e"},{"url":"https://git.kernel.org/stable/c/31bf37cf53ede8145e2bc62da803d4506da92975"},{"url":"https://git.kernel.org/stable/c/79b592e8f1b435796cbc2722190368e3e8ffd7a1"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-30T12:25:42.327Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.12","versionEndExcluding":"5.10.253"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.12","versionEndExcluding":"5.15.203"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.12","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.12","versionEndExcluding":"6.6.130"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.12","versionEndExcluding":"6.12.75"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.12","versionEndExcluding":"6.18.14"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.12","versionEndExcluding":"6.19.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.12","versionEndExcluding":"7.0"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}