{"id":"CVE-2022-50843","state":"PUBLISHED","title":"dm clone: Fix UAF in clone_dtr()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndm clone: Fix UAF in clone_dtr()\n\nDm_clone also has the same UAF problem when dm_resume()\nand dm_destroy() are concurrent.\n\nTherefore, cancelling timer again in clone_dtr().","publishedAt":"2025-12-30T12:11:01.130Z","updatedAt":"2026-05-11T19:26:11.293Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"7431b7835f554f8608b415a02cf3c3f086309e02","status":"affected","lessThan":"520b56cfd9faee7683f081c3a38f11a81b13a68e","versionType":"git"},{"version":"7431b7835f554f8608b415a02cf3c3f086309e02","status":"affected","lessThan":"342cfd8426dff4228e6c714bcb9fc8295a2748dd","versionType":"git"},{"version":"7431b7835f554f8608b415a02cf3c3f086309e02","status":"affected","lessThan":"856edd0e92f3fe89606b704c86a93daedddfe6ec","versionType":"git"},{"version":"7431b7835f554f8608b415a02cf3c3f086309e02","status":"affected","lessThan":"b1ddb666073bb5f36390aaabaa1a4d48d78c52ed","versionType":"git"},{"version":"7431b7835f554f8608b415a02cf3c3f086309e02","status":"affected","lessThan":"9e113cd4f61f3b0000843b2d0a90ce8b40a1fcff","versionType":"git"},{"version":"7431b7835f554f8608b415a02cf3c3f086309e02","status":"affected","lessThan":"e4b5957c6f749a501c464f92792f1c8e26b61a94","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/dm-clone-target.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.4","versionType":"semver"},{"version":"5.4.229","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.163","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.87","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.18","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1.4","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/dm-clone-target.c"]}],"references":["https://git.kernel.org/stable/c/520b56cfd9faee7683f081c3a38f11a81b13a68e","https://git.kernel.org/stable/c/342cfd8426dff4228e6c714bcb9fc8295a2748dd","https://git.kernel.org/stable/c/856edd0e92f3fe89606b704c86a93daedddfe6ec","https://git.kernel.org/stable/c/b1ddb666073bb5f36390aaabaa1a4d48d78c52ed","https://git.kernel.org/stable/c/9e113cd4f61f3b0000843b2d0a90ce8b40a1fcff","https://git.kernel.org/stable/c/e4b5957c6f749a501c464f92792f1c8e26b61a94"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/50xxx/CVE-2022-50843.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-50843","state":"PUBLISHED","datePublished":"2025-12-30T12:11:01.130Z","dateUpdated":"2026-05-11T19:26:11.293Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-12-30T12:06:07.133Z"},"containers":{"cna":{"title":"dm clone: Fix UAF in clone_dtr()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndm clone: Fix UAF in clone_dtr()\n\nDm_clone also has the same UAF problem when dm_resume()\nand dm_destroy() are concurrent.\n\nTherefore, cancelling timer again in clone_dtr()."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"7431b7835f554f8608b415a02cf3c3f086309e02","status":"affected","lessThan":"520b56cfd9faee7683f081c3a38f11a81b13a68e","versionType":"git"},{"version":"7431b7835f554f8608b415a02cf3c3f086309e02","status":"affected","lessThan":"342cfd8426dff4228e6c714bcb9fc8295a2748dd","versionType":"git"},{"version":"7431b7835f554f8608b415a02cf3c3f086309e02","status":"affected","lessThan":"856edd0e92f3fe89606b704c86a93daedddfe6ec","versionType":"git"},{"version":"7431b7835f554f8608b415a02cf3c3f086309e02","status":"affected","lessThan":"b1ddb666073bb5f36390aaabaa1a4d48d78c52ed","versionType":"git"},{"version":"7431b7835f554f8608b415a02cf3c3f086309e02","status":"affected","lessThan":"9e113cd4f61f3b0000843b2d0a90ce8b40a1fcff","versionType":"git"},{"version":"7431b7835f554f8608b415a02cf3c3f086309e02","status":"affected","lessThan":"e4b5957c6f749a501c464f92792f1c8e26b61a94","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/dm-clone-target.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.4","versionType":"semver"},{"version":"5.4.229","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.163","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.87","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.0.18","status":"unaffected","lessThanOrEqual":"6.0.*","versionType":"semver"},{"version":"6.1.4","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/md/dm-clone-target.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/520b56cfd9faee7683f081c3a38f11a81b13a68e"},{"url":"https://git.kernel.org/stable/c/342cfd8426dff4228e6c714bcb9fc8295a2748dd"},{"url":"https://git.kernel.org/stable/c/856edd0e92f3fe89606b704c86a93daedddfe6ec"},{"url":"https://git.kernel.org/stable/c/b1ddb666073bb5f36390aaabaa1a4d48d78c52ed"},{"url":"https://git.kernel.org/stable/c/9e113cd4f61f3b0000843b2d0a90ce8b40a1fcff"},{"url":"https://git.kernel.org/stable/c/e4b5957c6f749a501c464f92792f1c8e26b61a94"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:26:11.293Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"5.4.229"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"5.10.163"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"5.15.87"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"6.0.18"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"6.1.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"6.2"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}