{"id":"CVE-2026-43168","state":"PUBLISHED","title":"ocfs2: fix reflink preserve cleanup issue","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nocfs2: fix reflink preserve cleanup issue\n\ncommit c06c303832ec (\"ocfs2: fix xattr array entry __counted_by error\")\ndoesn't handle all cases and the cleanup job for preserved xattr entries\nstill has bug:\n- the 'last' pointer should be shifted by one unit after cleanup\n  an array entry.\n- current code logic doesn't cleanup the first entry when xh_count is 1.\n\nNote, commit c06c303832ec is also a bug fix for 0fe9b66c65f3.","publishedAt":"2026-05-06T11:27:44.570Z","updatedAt":"2026-05-11T22:19:06.078Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"0fe9b66c65f3ff227da45381afe7612f91e32740","status":"affected","lessThan":"c44d86ca949cb1e5566ad14510cc26fa1a17e2d8","versionType":"git"},{"version":"0fe9b66c65f3ff227da45381afe7612f91e32740","status":"affected","lessThan":"02acc9f72365e50eb45a56b7dacb9114ca3b503c","versionType":"git"},{"version":"0fe9b66c65f3ff227da45381afe7612f91e32740","status":"affected","lessThan":"8ff329353134280b203cb2bce95311cb8f7cbd8a","versionType":"git"},{"version":"0fe9b66c65f3ff227da45381afe7612f91e32740","status":"affected","lessThan":"bb273b68c1719c2925e05557f7e7099edb066680","versionType":"git"},{"version":"0fe9b66c65f3ff227da45381afe7612f91e32740","status":"affected","lessThan":"b2952dbeac2c3c527cb0519d5ffaeb95b062466a","versionType":"git"},{"version":"0fe9b66c65f3ff227da45381afe7612f91e32740","status":"affected","lessThan":"3bdc3766aafb052aef4baadef455a84c1c0a059d","versionType":"git"},{"version":"0fe9b66c65f3ff227da45381afe7612f91e32740","status":"affected","lessThan":"2f4daccd9d9b8b2952df7878df8c2e8ba6439398","versionType":"git"},{"version":"0fe9b66c65f3ff227da45381afe7612f91e32740","status":"affected","lessThan":"5138c936c2c82c9be8883921854bc6f7e1177d8c","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ocfs2/xattr.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.32","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.32","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":"6.18.16","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.6","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/ocfs2/xattr.c"]}],"references":["https://git.kernel.org/stable/c/c44d86ca949cb1e5566ad14510cc26fa1a17e2d8","https://git.kernel.org/stable/c/02acc9f72365e50eb45a56b7dacb9114ca3b503c","https://git.kernel.org/stable/c/8ff329353134280b203cb2bce95311cb8f7cbd8a","https://git.kernel.org/stable/c/bb273b68c1719c2925e05557f7e7099edb066680","https://git.kernel.org/stable/c/b2952dbeac2c3c527cb0519d5ffaeb95b062466a","https://git.kernel.org/stable/c/3bdc3766aafb052aef4baadef455a84c1c0a059d","https://git.kernel.org/stable/c/2f4daccd9d9b8b2952df7878df8c2e8ba6439398","https://git.kernel.org/stable/c/5138c936c2c82c9be8883921854bc6f7e1177d8c"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/43xxx/CVE-2026-43168.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-43168","state":"PUBLISHED","datePublished":"2026-05-06T11:27:44.570Z","dateUpdated":"2026-05-11T22:19:06.078Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-01T14:12:55.990Z"},"containers":{"cna":{"title":"ocfs2: fix reflink preserve cleanup issue","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nocfs2: fix reflink preserve cleanup issue\n\ncommit c06c303832ec (\"ocfs2: fix xattr array entry __counted_by error\")\ndoesn't handle all cases and the cleanup job for preserved xattr entries\nstill has bug:\n- the 'last' pointer should be shifted by one unit after cleanup\n  an array entry.\n- current code logic doesn't cleanup the first entry when xh_count is 1.\n\nNote, commit c06c303832ec is also a bug fix for 0fe9b66c65f3."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"0fe9b66c65f3ff227da45381afe7612f91e32740","status":"affected","lessThan":"c44d86ca949cb1e5566ad14510cc26fa1a17e2d8","versionType":"git"},{"version":"0fe9b66c65f3ff227da45381afe7612f91e32740","status":"affected","lessThan":"02acc9f72365e50eb45a56b7dacb9114ca3b503c","versionType":"git"},{"version":"0fe9b66c65f3ff227da45381afe7612f91e32740","status":"affected","lessThan":"8ff329353134280b203cb2bce95311cb8f7cbd8a","versionType":"git"},{"version":"0fe9b66c65f3ff227da45381afe7612f91e32740","status":"affected","lessThan":"bb273b68c1719c2925e05557f7e7099edb066680","versionType":"git"},{"version":"0fe9b66c65f3ff227da45381afe7612f91e32740","status":"affected","lessThan":"b2952dbeac2c3c527cb0519d5ffaeb95b062466a","versionType":"git"},{"version":"0fe9b66c65f3ff227da45381afe7612f91e32740","status":"affected","lessThan":"3bdc3766aafb052aef4baadef455a84c1c0a059d","versionType":"git"},{"version":"0fe9b66c65f3ff227da45381afe7612f91e32740","status":"affected","lessThan":"2f4daccd9d9b8b2952df7878df8c2e8ba6439398","versionType":"git"},{"version":"0fe9b66c65f3ff227da45381afe7612f91e32740","status":"affected","lessThan":"5138c936c2c82c9be8883921854bc6f7e1177d8c","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ocfs2/xattr.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.32","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.32","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":"6.18.16","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.6","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/ocfs2/xattr.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/c44d86ca949cb1e5566ad14510cc26fa1a17e2d8"},{"url":"https://git.kernel.org/stable/c/02acc9f72365e50eb45a56b7dacb9114ca3b503c"},{"url":"https://git.kernel.org/stable/c/8ff329353134280b203cb2bce95311cb8f7cbd8a"},{"url":"https://git.kernel.org/stable/c/bb273b68c1719c2925e05557f7e7099edb066680"},{"url":"https://git.kernel.org/stable/c/b2952dbeac2c3c527cb0519d5ffaeb95b062466a"},{"url":"https://git.kernel.org/stable/c/3bdc3766aafb052aef4baadef455a84c1c0a059d"},{"url":"https://git.kernel.org/stable/c/2f4daccd9d9b8b2952df7878df8c2e8ba6439398"},{"url":"https://git.kernel.org/stable/c/5138c936c2c82c9be8883921854bc6f7e1177d8c"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T22:19:06.078Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"5.10.252"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"5.15.202"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"6.1.165"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"6.6.128"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"6.12.75"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"6.18.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"6.19.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.32","versionEndExcluding":"7.0"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}