{"id":"CVE-2024-38566","state":"PUBLISHED","title":"bpf: Fix verifier assumptions about socket->sk","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix verifier assumptions about socket->sk\n\nThe verifier assumes that 'sk' field in 'struct socket' is valid\nand non-NULL when 'socket' pointer itself is trusted and non-NULL.\nThat may not be the case when socket was just created and\npassed to LSM socket_accept hook.\nFix this verifier assumption and adjust tests.","publishedAt":"2024-06-19T13:35:33.587Z","updatedAt":"2026-05-11T20:19:11.359Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6fcd486b3a0a628c41f12b3a7329a18a2c74b351","status":"affected","lessThan":"39f8a29330f433000e716eefc4b9abda05b71a82","versionType":"git"},{"version":"6fcd486b3a0a628c41f12b3a7329a18a2c74b351","status":"affected","lessThan":"6f5ae91172a93abac9720ba94edf3ec8f4d7f24f","versionType":"git"},{"version":"6fcd486b3a0a628c41f12b3a7329a18a2c74b351","status":"affected","lessThan":"c58ccdd2483a1d990748cdaf94206b5d5986a001","versionType":"git"},{"version":"6fcd486b3a0a628c41f12b3a7329a18a2c74b351","status":"affected","lessThan":"0db63c0b86e981a1e97d2596d64ceceba1a5470e","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/bpf/verifier.c","tools/testing/selftests/bpf/progs/bench_local_storage_create.c","tools/testing/selftests/bpf/progs/local_storage.c","tools/testing/selftests/bpf/progs/lsm_cgroup.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.4","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.4","versionType":"semver"},{"version":"6.6.33","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.8.12","status":"unaffected","lessThanOrEqual":"6.8.*","versionType":"semver"},{"version":"6.9.3","status":"unaffected","lessThanOrEqual":"6.9.*","versionType":"semver"},{"version":"6.10","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/bpf/verifier.c","tools/testing/selftests/bpf/progs/bench_local_storage_create.c","tools/testing/selftests/bpf/progs/local_storage.c","tools/testing/selftests/bpf/progs/lsm_cgroup.c"]}],"references":["https://git.kernel.org/stable/c/39f8a29330f433000e716eefc4b9abda05b71a82","https://git.kernel.org/stable/c/6f5ae91172a93abac9720ba94edf3ec8f4d7f24f","https://git.kernel.org/stable/c/c58ccdd2483a1d990748cdaf94206b5d5986a001","https://git.kernel.org/stable/c/0db63c0b86e981a1e97d2596d64ceceba1a5470e"],"weaknesses":[],"ingestedAt":"2026-10-29T20:07:39.287Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/38xxx/CVE-2024-38566.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2024-38566","state":"PUBLISHED","datePublished":"2024-06-19T13:35:33.587Z","dateUpdated":"2026-05-11T20:19:11.359Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-06-18T19:36:34.923Z"},"containers":{"cna":{"title":"bpf: Fix verifier assumptions about socket->sk","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix verifier assumptions about socket->sk\n\nThe verifier assumes that 'sk' field in 'struct socket' is valid\nand non-NULL when 'socket' pointer itself is trusted and non-NULL.\nThat may not be the case when socket was just created and\npassed to LSM socket_accept hook.\nFix this verifier assumption and adjust 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