{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-45951","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-05-13T15:03:33.088Z","datePublished":"2026-05-27T12:18:07.255Z","dateUpdated":"2026-05-30T10:46:12.863Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-30T10:46:12.863Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix a potential use-after-free of BTF object\n\nRefcounting in the check_pseudo_btf_id() function is incorrect:\nthe __check_pseudo_btf_id() function might get called with a zero\nrefcounted btf. Fix this, and patch related code accordingly.\n\nv3: rephrase a comment (AI)\nv2: fix a refcount leak introduced in v1 (AI)"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","baseScore":7.8,"baseSeverity":"HIGH"}}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/bpf/verifier.c"],"versions":[{"version":"76145f7255326761dafb76721a785799d8a00d5f","lessThan":"eac65c272f3b49021a843cba5107d63627395e0e","status":"affected","versionType":"git"},{"version":"76145f7255326761dafb76721a785799d8a00d5f","lessThan":"9ff46ffeecdb1802d6e26183177935b948a12e7f","status":"affected","versionType":"git"},{"version":"76145f7255326761dafb76721a785799d8a00d5f","lessThan":"ccd2d799ed4467c07f5ee18c2f5c59bcc990822c","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/verifier.c"],"versions":[{"version":"6.14","status":"affected"},{"version":"0","lessThan":"6.14","status":"unaffected","versionType":"semver"},{"version":"6.18.14","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"6.19.4","lessThanOrEqual":"6.19.*","status":"unaffected","versionType":"semver"},{"version":"7.0","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":"6.14","versionEndExcluding":"6.18.14"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.14","versionEndExcluding":"6.19.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.14","versionEndExcluding":"7.0"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/eac65c272f3b49021a843cba5107d63627395e0e"},{"url":"https://git.kernel.org/stable/c/9ff46ffeecdb1802d6e26183177935b948a12e7f"},{"url":"https://git.kernel.org/stable/c/ccd2d799ed4467c07f5ee18c2f5c59bcc990822c"}],"title":"bpf: Fix a potential use-after-free of BTF object","x_generator":{"engine":"bippy-1.2.0"}}}}