{"id":"CVE-2025-40055","state":"PUBLISHED","title":"ocfs2: fix double free in user_cluster_connect()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nocfs2: fix double free in user_cluster_connect()\n\nuser_cluster_disconnect() frees \"conn->cc_private\" which is \"lc\" but then\nthe error handling frees \"lc\" a second time.  Set \"lc\" to NULL on this\npath to avoid a double free.","publishedAt":"2025-10-28T11:48:29.665Z","updatedAt":"2026-05-11T21:41:36.488Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"c994c2ebdbbc391a42f177c8eb7882ebf3f142d8","status":"affected","lessThan":"283333079d96c84baa91f0c62b5e0cbec246b7a2","versionType":"git"},{"version":"c994c2ebdbbc391a42f177c8eb7882ebf3f142d8","status":"affected","lessThan":"f992bc72f681c32a682d474a29c2135a64d4f4e5","versionType":"git"},{"version":"c994c2ebdbbc391a42f177c8eb7882ebf3f142d8","status":"affected","lessThan":"827c8efa0d1afe817b90f3618afff552e88348d2","versionType":"git"},{"version":"c994c2ebdbbc391a42f177c8eb7882ebf3f142d8","status":"affected","lessThan":"bfe011297ddd2d0cd64752978baaa0c04cd20573","versionType":"git"},{"version":"c994c2ebdbbc391a42f177c8eb7882ebf3f142d8","status":"affected","lessThan":"7e76fe9dfadbc00364d7523d5a109e9d3e4a7db2","versionType":"git"},{"version":"c994c2ebdbbc391a42f177c8eb7882ebf3f142d8","status":"affected","lessThan":"694d5b401036a614f8080085a9de6f86ff0742dc","versionType":"git"},{"version":"c994c2ebdbbc391a42f177c8eb7882ebf3f142d8","status":"affected","lessThan":"892f41e12c8689130d552a9eb2b77bafd26484ab","versionType":"git"},{"version":"c994c2ebdbbc391a42f177c8eb7882ebf3f142d8","status":"affected","lessThan":"8f45f089337d924db24397f55697cda0e6960516","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ocfs2/stack_user.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.14","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.14","versionType":"semver"},{"version":"5.4.301","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.246","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.195","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.156","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.112","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.53","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.17.3","status":"unaffected","lessThanOrEqual":"6.17.*","versionType":"semver"},{"version":"6.18","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ocfs2/stack_user.c"]}],"references":["https://git.kernel.org/stable/c/283333079d96c84baa91f0c62b5e0cbec246b7a2","https://git.kernel.org/stable/c/f992bc72f681c32a682d474a29c2135a64d4f4e5","https://git.kernel.org/stable/c/827c8efa0d1afe817b90f3618afff552e88348d2","https://git.kernel.org/stable/c/bfe011297ddd2d0cd64752978baaa0c04cd20573","https://git.kernel.org/stable/c/7e76fe9dfadbc00364d7523d5a109e9d3e4a7db2","https://git.kernel.org/stable/c/694d5b401036a614f8080085a9de6f86ff0742dc","https://git.kernel.org/stable/c/892f41e12c8689130d552a9eb2b77bafd26484ab","https://git.kernel.org/stable/c/8f45f089337d924db24397f55697cda0e6960516"],"weaknesses":[],"ingestedAt":"2026-10-29T20:09:09.358Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/40xxx/CVE-2025-40055.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-40055","state":"PUBLISHED","datePublished":"2025-10-28T11:48:29.665Z","dateUpdated":"2026-05-11T21:41:36.488Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-04-16T07:20:57.157Z"},"containers":{"cna":{"title":"ocfs2: fix double free in user_cluster_connect()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nocfs2: fix double free in user_cluster_connect()\n\nuser_cluster_disconnect() frees \"conn->cc_private\" which is \"lc\" but then\nthe error handling frees \"lc\" a second time.  Set \"lc\" to NULL on this\npath to avoid a double free."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"c994c2ebdbbc391a42f177c8eb7882ebf3f142d8","status":"affected","lessThan":"283333079d96c84baa91f0c62b5e0cbec246b7a2","versionType":"git"},{"version":"c994c2ebdbbc391a42f177c8eb7882ebf3f142d8","status":"affected","lessThan":"f992bc72f681c32a682d474a29c2135a64d4f4e5","versionType":"git"},{"version":"c994c2ebdbbc391a42f177c8eb7882ebf3f142d8","status":"affected","lessThan":"827c8efa0d1afe817b90f3618afff552e88348d2","versionType":"git"},{"version":"c994c2ebdbbc391a42f177c8eb7882ebf3f142d8","status":"affected","lessThan":"bfe011297ddd2d0cd64752978baaa0c04cd20573","versionType":"git"},{"version":"c994c2ebdbbc391a42f177c8eb7882ebf3f142d8","status":"affected","lessThan":"7e76fe9dfadbc00364d7523d5a109e9d3e4a7db2","versionType":"git"},{"version":"c994c2ebdbbc391a42f177c8eb7882ebf3f142d8","status":"affected","lessThan":"694d5b401036a614f8080085a9de6f86ff0742dc","versionType":"git"},{"version":"c994c2ebdbbc391a42f177c8eb7882ebf3f142d8","status":"affected","lessThan":"892f41e12c8689130d552a9eb2b77bafd26484ab","versionType":"git"},{"version":"c994c2ebdbbc391a42f177c8eb7882ebf3f142d8","status":"affected","lessThan":"8f45f089337d924db24397f55697cda0e6960516","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ocfs2/stack_user.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.14","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.14","versionType":"semver"},{"version":"5.4.301","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.246","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.195","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.156","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.112","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.53","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.17.3","status":"unaffected","lessThanOrEqual":"6.17.*","versionType":"semver"},{"version":"6.18","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ocfs2/stack_user.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/283333079d96c84baa91f0c62b5e0cbec246b7a2"},{"url":"https://git.kernel.org/stable/c/f992bc72f681c32a682d474a29c2135a64d4f4e5"},{"url":"https://git.kernel.org/stable/c/827c8efa0d1afe817b90f3618afff552e88348d2"},{"url":"https://git.kernel.org/stable/c/bfe011297ddd2d0cd64752978baaa0c04cd20573"},{"url":"https://git.kernel.org/stable/c/7e76fe9dfadbc00364d7523d5a109e9d3e4a7db2"},{"url":"https://git.kernel.org/stable/c/694d5b401036a614f8080085a9de6f86ff0742dc"},{"url":"https://git.kernel.org/stable/c/892f41e12c8689130d552a9eb2b77bafd26484ab"},{"url":"https://git.kernel.org/stable/c/8f45f089337d924db24397f55697cda0e6960516"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:41:36.488Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"5.4.301"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"5.10.246"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"5.15.195"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"6.1.156"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"6.6.112"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"6.12.53"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"6.17.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.14","versionEndExcluding":"6.18"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}