{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2023-54145", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-24T13:02:52.523Z", "datePublished": "2025-12-24T13:06:58.227Z", "dateUpdated": "2025-12-24T13:06:58.227Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-12-24T13:06:58.227Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: drop unnecessary user-triggerable WARN_ONCE in verifierl log\n\nIt's trivial for user to trigger \"verifier log line truncated\" warning,\nas verifier has a fixed-sized buffer of 1024 bytes (as of now), and there are at\nleast two pieces of user-provided information that can be output through\nthis buffer, and both can be arbitrarily sized by user:\n - BTF names;\n - BTF.ext source code lines strings.\n\nVerifier log buffer should be properly sized for typical verifier state\noutput. But it's sort-of expected that this buffer won't be long enough\nin some circumstances. So let's drop the check. In any case code will\nwork correctly, at worst truncating a part of a single line output."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/bpf/log.c"], "versions": [{"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "40c88c429a598006f91ad7a2b89856cd50b3a008", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "926a175026fed5d534f587ea4ec3ec49265cd3c5", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "cff36398bd4c7d322d424433db437f3c3391c491", "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/log.c"], "versions": [{"version": "6.1.107", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.4.7", "lessThanOrEqual": "6.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.5", "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:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.1.107"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.4.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.5"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/40c88c429a598006f91ad7a2b89856cd50b3a008"}, {"url": "https://git.kernel.org/stable/c/926a175026fed5d534f587ea4ec3ec49265cd3c5"}, {"url": "https://git.kernel.org/stable/c/cff36398bd4c7d322d424433db437f3c3391c491"}], "title": "bpf: drop unnecessary user-triggerable WARN_ONCE in verifierl log", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: drop unnecessary user-triggerable WARN_ONCE in verifierl log\n\nIt's trivial for user to trigger \"verifier log line truncated\" warning,\nas verifier has a fixed-sized buffer of 1024 bytes (as of now), and there are at\nleast two pieces of user-provided information that can be output through\nthis buffer, and both can be arbitrarily sized by user:\n - BTF names;\n - BTF.ext source code lines strings.\n\nVerifier log buffer should be properly sized for typical verifier state\noutput. But it's sort-of expected that this buffer won't be long enough\nin some circumstances. So let's drop the check. In any case code will\nwork correctly, at worst truncating a part of a single line output."}], "id": "CVE-2023-54145", "lastModified": "2025-12-24T13:16:16.510", "metrics": {}, "published": "2025-12-24T13:16:16.510", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/40c88c429a598006f91ad7a2b89856cd50b3a008"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/926a175026fed5d534f587ea4ec3ec49265cd3c5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cff36398bd4c7d322d424433db437f3c3391c491"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

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