{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-40909","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-07-12T12:17:45.580Z","datePublished":"2024-07-12T12:20:48.447Z","dateUpdated":"2025-05-04T12:57:08.471Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2025-05-04T12:57:08.471Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix a potential use-after-free in bpf_link_free()\n\nAfter commit 1a80dbcb2dba, bpf_link can be freed by\nlink->ops->dealloc_deferred, but the code still tests and uses\nlink->ops->dealloc afterward, which leads to a use-after-free as\nreported by syzbot. Actually, one of them should be sufficient, so\njust call one of them instead of both. Also add a WARN_ON() in case\nof any problematic implementation."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/bpf/syscall.c"],"versions":[{"version":"876941f533e7b47fc69977fc4551c02f2d18af97","lessThan":"91cff53136daeff50816b0baeafd38a6976f6209","status":"affected","versionType":"git"},{"version":"1a80dbcb2dbaf6e4c216e62e30fa7d3daa8001ce","lessThan":"fa97b8fed9896f1e89cb657513e483a152d4c382","status":"affected","versionType":"git"},{"version":"1a80dbcb2dbaf6e4c216e62e30fa7d3daa8001ce","lessThan":"2884dc7d08d98a89d8d65121524bb7533183a63a","status":"affected","versionType":"git"},{"version":"5d8d447777564b35f67000e7838e7ccb64d525c8","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/bpf/syscall.c"],"versions":[{"version":"6.9","status":"affected"},{"version":"0","lessThan":"6.9","status":"unaffected","versionType":"semver"},{"version":"6.6.35","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.9.6","lessThanOrEqual":"6.9.*","status":"unaffected","versionType":"semver"},{"version":"6.10","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6.26","versionEndExcluding":"6.6.35"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9","versionEndExcluding":"6.9.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9","versionEndExcluding":"6.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8.5"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/91cff53136daeff50816b0baeafd38a6976f6209"},{"url":"https://git.kernel.org/stable/c/fa97b8fed9896f1e89cb657513e483a152d4c382"},{"url":"https://git.kernel.org/stable/c/2884dc7d08d98a89d8d65121524bb7533183a63a"}],"title":"bpf: Fix a potential use-after-free in bpf_link_free()","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-02T04:39:55.487Z"},"title":"CVE Program Container","references":[{"url":"https://git.kernel.org/stable/c/91cff53136daeff50816b0baeafd38a6976f6209","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/fa97b8fed9896f1e89cb657513e483a152d4c382","tags":["x_transferred"]},{"url":"https://git.kernel.org/stable/c/2884dc7d08d98a89d8d65121524bb7533183a63a","tags":["x_transferred"]}]},{"metrics":[{"other":{"type":"ssvc","content":{"id":"CVE-2024-40909","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2024-09-10T17:06:09.099919Z"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-09-11T17:34:37.410Z"}}]}}