{"id":"CVE-2024-49877","state":"PUBLISHED","title":"ocfs2: fix possible null-ptr-deref in ocfs2_set_buffer_uptodate","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nocfs2: fix possible null-ptr-deref in ocfs2_set_buffer_uptodate\n\nWhen doing cleanup, if flags without OCFS2_BH_READAHEAD, it may trigger\nNULL pointer dereference in the following ocfs2_set_buffer_uptodate() if\nbh is NULL.","publishedAt":"2024-10-21T18:01:16.788Z","updatedAt":"2026-05-23T15:53:59.763Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6c150df9c2e80b5cf86f5a0d98beb7390ad63bfc","status":"affected","lessThan":"190d98bcd61117a78fe185222d162180f061a6ca","versionType":"git"},{"version":"cf76c78595ca87548ca5e45c862ac9e0949c4687","status":"affected","lessThan":"e68c8323355e8cedfbe0bec7d5a39009f61640b6","versionType":"git"},{"version":"cf76c78595ca87548ca5e45c862ac9e0949c4687","status":"affected","lessThan":"61b84013e560382cbe7dd56758be3154d43a3988","versionType":"git"},{"version":"cf76c78595ca87548ca5e45c862ac9e0949c4687","status":"affected","lessThan":"df944dc46d06af65a75191183d52be017e6b9dbe","versionType":"git"},{"version":"cf76c78595ca87548ca5e45c862ac9e0949c4687","status":"affected","lessThan":"01cb2e751cc61ade454c9bc1aaa2eac1f8197112","versionType":"git"},{"version":"cf76c78595ca87548ca5e45c862ac9e0949c4687","status":"affected","lessThan":"d52c5652e7dcb7a0648bbb8642cc3e617070ab49","versionType":"git"},{"version":"cf76c78595ca87548ca5e45c862ac9e0949c4687","status":"affected","lessThan":"46b1edf0536a5291a8ad2337f88c926214b209d9","versionType":"git"},{"version":"cf76c78595ca87548ca5e45c862ac9e0949c4687","status":"affected","lessThan":"4846e72ab5a0726e49ad4188b9d9df091ae78c64","versionType":"git"},{"version":"cf76c78595ca87548ca5e45c862ac9e0949c4687","status":"affected","lessThan":"33b525cef4cff49e216e4133cc48452e11c0391e","versionType":"git"},{"version":"01f93d5e36753fc4d06ec67f05ce78c9c6f2dd56","status":"affected","versionType":"git"},{"version":"65cbd1279f4b999d56a838344a30642db24cd215","status":"affected","versionType":"git"},{"version":"97e1db17bc1ef4c2e1789bc9323c7be44fba53f8","status":"affected","versionType":"git"},{"version":"4.19.87","status":"affected","lessThan":"4.19.323","versionType":"semver"},{"version":"4.4.204","status":"affected","lessThan":"4.5","versionType":"semver"},{"version":"4.9.204","status":"affected","lessThan":"4.10","versionType":"semver"},{"version":"4.14.157","status":"affected","lessThan":"4.15","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ocfs2/buffer_head_io.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.20","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.20","versionType":"semver"},{"version":"4.19.323","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.285","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.227","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.168","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.113","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.55","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.10.14","status":"unaffected","lessThanOrEqual":"6.10.*","versionType":"semver"},{"version":"6.11.3","status":"unaffected","lessThanOrEqual":"6.11.*","versionType":"semver"},{"version":"6.12","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ocfs2/buffer_head_io.c"]}],"references":["https://git.kernel.org/stable/c/190d98bcd61117a78fe185222d162180f061a6ca","https://git.kernel.org/stable/c/e68c8323355e8cedfbe0bec7d5a39009f61640b6","https://git.kernel.org/stable/c/61b84013e560382cbe7dd56758be3154d43a3988","https://git.kernel.org/stable/c/df944dc46d06af65a75191183d52be017e6b9dbe","https://git.kernel.org/stable/c/01cb2e751cc61ade454c9bc1aaa2eac1f8197112","https://git.kernel.org/stable/c/d52c5652e7dcb7a0648bbb8642cc3e617070ab49","https://git.kernel.org/stable/c/46b1edf0536a5291a8ad2337f88c926214b209d9","https://git.kernel.org/stable/c/4846e72ab5a0726e49ad4188b9d9df091ae78c64","https://git.kernel.org/stable/c/33b525cef4cff49e216e4133cc48452e11c0391e","https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html","https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:07:56.516Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/49xxx/CVE-2024-49877.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-49877","state":"PUBLISHED","datePublished":"2024-10-21T18:01:16.788Z","dateUpdated":"2026-05-23T15:53:59.763Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-10-21T12:17:06.021Z"},"containers":{"cna":{"title":"ocfs2: fix possible null-ptr-deref in ocfs2_set_buffer_uptodate","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nocfs2: fix possible null-ptr-deref in ocfs2_set_buffer_uptodate\n\nWhen doing cleanup, if flags without OCFS2_BH_READAHEAD, it may trigger\nNULL pointer dereference in the following ocfs2_set_buffer_uptodate() if\nbh is NULL."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6c150df9c2e80b5cf86f5a0d98beb7390ad63bfc","status":"affected","lessThan":"190d98bcd61117a78fe185222d162180f061a6ca","versionType":"git"},{"version":"cf76c78595ca87548ca5e45c862ac9e0949c4687","status":"affected","lessThan":"e68c8323355e8cedfbe0bec7d5a39009f61640b6","versionType":"git"},{"version":"cf76c78595ca87548ca5e45c862ac9e0949c4687","status":"affected","lessThan":"61b84013e560382cbe7dd56758be3154d43a3988","versionType":"git"},{"version":"cf76c78595ca87548ca5e45c862ac9e0949c4687","status":"affected","lessThan":"df944dc46d06af65a75191183d52be017e6b9dbe","versionType":"git"},{"version":"cf76c78595ca87548ca5e45c862ac9e0949c4687","status":"affected","lessThan":"01cb2e751cc61ade454c9bc1aaa2eac1f8197112","versionType":"git"},{"version":"cf76c78595ca87548ca5e45c862ac9e0949c4687","status":"affected","lessThan":"d52c5652e7dcb7a0648bbb8642cc3e617070ab49","versionType":"git"},{"version":"cf76c78595ca87548ca5e45c862ac9e0949c4687","status":"affected","lessThan":"46b1edf0536a5291a8ad2337f88c926214b209d9","versionType":"git"},{"version":"cf76c78595ca87548ca5e45c862ac9e0949c4687","status":"affected","lessThan":"4846e72ab5a0726e49ad4188b9d9df091ae78c64","versionType":"git"},{"version":"cf76c78595ca87548ca5e45c862ac9e0949c4687","status":"affected","lessThan":"33b525cef4cff49e216e4133cc48452e11c0391e","versionType":"git"},{"version":"01f93d5e36753fc4d06ec67f05ce78c9c6f2dd56","status":"affected","versionType":"git"},{"version":"65cbd1279f4b999d56a838344a30642db24cd215","status":"affected","versionType":"git"},{"version":"97e1db17bc1ef4c2e1789bc9323c7be44fba53f8","status":"affected","versionType":"git"},{"version":"4.19.87","status":"affected","lessThan":"4.19.323","versionType":"semver"},{"version":"4.4.204","status":"affected","lessThan":"4.5","versionType":"semver"},{"version":"4.9.204","status":"affected","lessThan":"4.10","versionType":"semver"},{"version":"4.14.157","status":"affected","lessThan":"4.15","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ocfs2/buffer_head_io.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"4.20","status":"affected"},{"version":"0","status":"unaffected","lessThan":"4.20","versionType":"semver"},{"version":"4.19.323","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.285","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.227","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.168","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.113","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.55","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.10.14","status":"unaffected","lessThanOrEqual":"6.10.*","versionType":"semver"},{"version":"6.11.3","status":"unaffected","lessThanOrEqual":"6.11.*","versionType":"semver"},{"version":"6.12","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["fs/ocfs2/buffer_head_io.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/190d98bcd61117a78fe185222d162180f061a6ca"},{"url":"https://git.kernel.org/stable/c/e68c8323355e8cedfbe0bec7d5a39009f61640b6"},{"url":"https://git.kernel.org/stable/c/61b84013e560382cbe7dd56758be3154d43a3988"},{"url":"https://git.kernel.org/stable/c/df944dc46d06af65a75191183d52be017e6b9dbe"},{"url":"https://git.kernel.org/stable/c/01cb2e751cc61ade454c9bc1aaa2eac1f8197112"},{"url":"https://git.kernel.org/stable/c/d52c5652e7dcb7a0648bbb8642cc3e617070ab49"},{"url":"https://git.kernel.org/stable/c/46b1edf0536a5291a8ad2337f88c926214b209d9"},{"url":"https://git.kernel.org/stable/c/4846e72ab5a0726e49ad4188b9d9df091ae78c64"},{"url":"https://git.kernel.org/stable/c/33b525cef4cff49e216e4133cc48452e11c0391e"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-23T15:53:59.763Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19.87","versionEndExcluding":"4.19.323"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"5.4.285"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"5.10.227"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"5.15.168"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"6.1.113"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"6.6.55"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"6.10.14"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"6.11.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.20","versionEndExcluding":"6.12"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.4.204"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9.204"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14.157"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2024-49877","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-10-22T13:46:09.612488Z"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2024-10-22T13:48:51.090Z"}},{"title":"CVE Program Container","references":[{"url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html"},{"url":"https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html"}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2025-11-03T22:22:42.001Z"}}]}}}