{"id":"CVE-2026-43358","state":"PUBLISHED","title":"btrfs: add missing RCU unlock in error path in try_release_subpage_extent_buffer()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: add missing RCU unlock in error path in try_release_subpage_extent_buffer()\n\nCall rcu_read_lock() before exiting the loop in\ntry_release_subpage_extent_buffer() because there is a rcu_read_unlock()\ncall past the loop.\n\nThis has been detected by the Clang thread-safety analyzer.","publishedAt":"2026-05-08T14:21:13.719Z","updatedAt":"2026-05-23T16:06:50.155Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"ad580dfa388fabb52af033e3f8cc5d04be985e54","status":"affected","lessThan":"5e1ab71f74a1e61f1254dff128a764fdebaec0b8","versionType":"git"},{"version":"ad580dfa388fabb52af033e3f8cc5d04be985e54","status":"affected","lessThan":"35b0c8768e848e1b7e32052db36b5fa59b6a33a1","versionType":"git"},{"version":"ad580dfa388fabb52af033e3f8cc5d04be985e54","status":"affected","lessThan":"b2840e33127ce0eea880504b7f133e780f567a9b","versionType":"git"},{"version":"10ec363cfefeeb77fda4c1ac20a531f21de45264","status":"affected","versionType":"git"},{"version":"6.16.4","status":"affected","lessThan":"6.17","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/btrfs/extent_io.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.17","versionType":"semver"},{"version":"6.18.19","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.9","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/extent_io.c"]}],"references":["https://git.kernel.org/stable/c/5e1ab71f74a1e61f1254dff128a764fdebaec0b8","https://git.kernel.org/stable/c/35b0c8768e848e1b7e32052db36b5fa59b6a33a1","https://git.kernel.org/stable/c/b2840e33127ce0eea880504b7f133e780f567a9b"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/43xxx/CVE-2026-43358.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-43358","state":"PUBLISHED","datePublished":"2026-05-08T14:21:13.719Z","dateUpdated":"2026-05-23T16:06:50.155Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-01T14:12:56.005Z"},"containers":{"cna":{"title":"btrfs: add missing RCU unlock in error path in try_release_subpage_extent_buffer()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: add missing RCU unlock in error path in try_release_subpage_extent_buffer()\n\nCall rcu_read_lock() before exiting the loop in\ntry_release_subpage_extent_buffer() because there is a rcu_read_unlock()\ncall past the loop.\n\nThis has been detected by the Clang thread-safety analyzer."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"ad580dfa388fabb52af033e3f8cc5d04be985e54","status":"affected","lessThan":"5e1ab71f74a1e61f1254dff128a764fdebaec0b8","versionType":"git"},{"version":"ad580dfa388fabb52af033e3f8cc5d04be985e54","status":"affected","lessThan":"35b0c8768e848e1b7e32052db36b5fa59b6a33a1","versionType":"git"},{"version":"ad580dfa388fabb52af033e3f8cc5d04be985e54","status":"affected","lessThan":"b2840e33127ce0eea880504b7f133e780f567a9b","versionType":"git"},{"version":"10ec363cfefeeb77fda4c1ac20a531f21de45264","status":"affected","versionType":"git"},{"version":"6.16.4","status":"affected","lessThan":"6.17","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/btrfs/extent_io.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.17","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.17","versionType":"semver"},{"version":"6.18.19","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.9","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/extent_io.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/5e1ab71f74a1e61f1254dff128a764fdebaec0b8"},{"url":"https://git.kernel.org/stable/c/35b0c8768e848e1b7e32052db36b5fa59b6a33a1"},{"url":"https://git.kernel.org/stable/c/b2840e33127ce0eea880504b7f133e780f567a9b"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-23T16:06:50.155Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.17","versionEndExcluding":"6.18.19"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.17","versionEndExcluding":"6.19.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.17","versionEndExcluding":"7.0"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.16.4"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}