{"id":"CVE-2026-43393","state":"PUBLISHED","title":"btrfs: fix chunk map leak in btrfs_map_block() after btrfs_chunk_map_num_copies()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix chunk map leak in btrfs_map_block() after btrfs_chunk_map_num_copies()\n\nFix a chunk map leak in btrfs_map_block(): if we return early with -EINVAL,\nwe're not freeing the chunk map that we've just looked up.","publishedAt":"2026-05-08T14:21:37.368Z","updatedAt":"2026-05-11T22:23:43.050Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"0ae653fbec2b9fbc72c65a0c99528990bfb2136d","status":"affected","lessThan":"0e4aaf5a3212b6a469c2489637c29a8e2a5062a5","versionType":"git"},{"version":"0ae653fbec2b9fbc72c65a0c99528990bfb2136d","status":"affected","lessThan":"7bdf00ed75c477252578068dba19934cd825f20a","versionType":"git"},{"version":"0ae653fbec2b9fbc72c65a0c99528990bfb2136d","status":"affected","lessThan":"4f90c5c2698383984102401b1724b0b67da832ab","versionType":"git"},{"version":"0ae653fbec2b9fbc72c65a0c99528990bfb2136d","status":"affected","lessThan":"f15fb3d41543244d1179f423da4a4832a55bc050","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/btrfs/volumes.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.12","versionType":"semver"},{"version":"6.12.78","status":"unaffected","lessThanOrEqual":"6.12.*","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/volumes.c"]}],"references":["https://git.kernel.org/stable/c/0e4aaf5a3212b6a469c2489637c29a8e2a5062a5","https://git.kernel.org/stable/c/7bdf00ed75c477252578068dba19934cd825f20a","https://git.kernel.org/stable/c/4f90c5c2698383984102401b1724b0b67da832ab","https://git.kernel.org/stable/c/f15fb3d41543244d1179f423da4a4832a55bc050"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/43xxx/CVE-2026-43393.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-43393","state":"PUBLISHED","datePublished":"2026-05-08T14:21:37.368Z","dateUpdated":"2026-05-11T22:23:43.050Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-01T14:12:56.007Z"},"containers":{"cna":{"title":"btrfs: fix chunk map leak in btrfs_map_block() after btrfs_chunk_map_num_copies()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: fix chunk map leak in btrfs_map_block() after btrfs_chunk_map_num_copies()\n\nFix a chunk map leak in btrfs_map_block(): if we return early with -EINVAL,\nwe're not freeing the chunk map that we've just looked up."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"0ae653fbec2b9fbc72c65a0c99528990bfb2136d","status":"affected","lessThan":"0e4aaf5a3212b6a469c2489637c29a8e2a5062a5","versionType":"git"},{"version":"0ae653fbec2b9fbc72c65a0c99528990bfb2136d","status":"affected","lessThan":"7bdf00ed75c477252578068dba19934cd825f20a","versionType":"git"},{"version":"0ae653fbec2b9fbc72c65a0c99528990bfb2136d","status":"affected","lessThan":"4f90c5c2698383984102401b1724b0b67da832ab","versionType":"git"},{"version":"0ae653fbec2b9fbc72c65a0c99528990bfb2136d","status":"affected","lessThan":"f15fb3d41543244d1179f423da4a4832a55bc050","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/btrfs/volumes.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.12","versionType":"semver"},{"version":"6.12.78","status":"unaffected","lessThanOrEqual":"6.12.*","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/volumes.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/0e4aaf5a3212b6a469c2489637c29a8e2a5062a5"},{"url":"https://git.kernel.org/stable/c/7bdf00ed75c477252578068dba19934cd825f20a"},{"url":"https://git.kernel.org/stable/c/4f90c5c2698383984102401b1724b0b67da832ab"},{"url":"https://git.kernel.org/stable/c/f15fb3d41543244d1179f423da4a4832a55bc050"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T22:23:43.050Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.12.78"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.18.19"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.19.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"7.0"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}