{"id":"CVE-2025-21679","state":"PUBLISHED","title":"btrfs: add the missing error handling inside get_canonical_dev_path","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: add the missing error handling inside get_canonical_dev_path\n\nInside function get_canonical_dev_path(), we call d_path() to get the\nfinal device path.\n\nBut d_path() can return error, and in that case the next strscpy() call\nwill trigger an invalid memory access.\n\nAdd back the missing error handling for d_path().","publishedAt":"2025-01-31T11:25:40.171Z","updatedAt":"2026-05-11T21:04:21.083Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5d261f60b5c82ba1e4b5555252e1c90c43d96015","status":"affected","lessThan":"d0fb5741932b831eded49bfaaf33353e96200d6d","versionType":"git"},{"version":"7e06de7c83a746e58d4701e013182af133395188","status":"affected","lessThan":"fe4de594f7a2e9bc49407de60fbd20809fad4192","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":"unaffected","versions":[{"version":"6.12.5","status":"affected","lessThan":"6.12.11","versionType":"semver"}],"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/d0fb5741932b831eded49bfaaf33353e96200d6d","https://git.kernel.org/stable/c/fe4de594f7a2e9bc49407de60fbd20809fad4192"],"weaknesses":[],"ingestedAt":"2026-10-29T20:08:39.238Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/21xxx/CVE-2025-21679.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-21679","state":"PUBLISHED","datePublished":"2025-01-31T11:25:40.171Z","dateUpdated":"2026-05-11T21:04:21.083Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-12-29T08:45:45.738Z"},"containers":{"cna":{"title":"btrfs: add the missing error handling inside get_canonical_dev_path","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: add the missing error handling inside get_canonical_dev_path\n\nInside function get_canonical_dev_path(), we call d_path() to get the\nfinal device path.\n\nBut d_path() can return error, and in that case the next strscpy() call\nwill trigger an invalid memory access.\n\nAdd back the missing error handling for d_path()."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5d261f60b5c82ba1e4b5555252e1c90c43d96015","status":"affected","lessThan":"d0fb5741932b831eded49bfaaf33353e96200d6d","versionType":"git"},{"version":"7e06de7c83a746e58d4701e013182af133395188","status":"affected","lessThan":"fe4de594f7a2e9bc49407de60fbd20809fad4192","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":"unaffected","versions":[{"version":"6.12.5","status":"affected","lessThan":"6.12.11","versionType":"semver"}],"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/d0fb5741932b831eded49bfaaf33353e96200d6d"},{"url":"https://git.kernel.org/stable/c/fe4de594f7a2e9bc49407de60fbd20809fad4192"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:04:21.083Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12.5","versionEndExcluding":"6.12.11"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}