{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-40050","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-04-16T07:20:57.157Z","datePublished":"2025-10-28T11:48:26.654Z","dateUpdated":"2026-05-11T21:41:30.716Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:41:30.716Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Skip scalar adjustment for BPF_NEG if dst is a pointer\n\nIn check_alu_op(), the verifier currently calls check_reg_arg() and\nadjust_scalar_min_max_vals() unconditionally for BPF_NEG operations.\nHowever, if the destination register holds a pointer, these scalar\nadjustments are unnecessary and potentially incorrect.\n\nThis patch adds a check to skip the adjustment logic when the destination\nregister contains a pointer."}],"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":"aced132599b3c8884c050218d4c48eef203678f6","lessThan":"b9ef4963227246b9222e1559ddeec8e7af63e6c6","status":"affected","versionType":"git"},{"version":"aced132599b3c8884c050218d4c48eef203678f6","lessThan":"34904582b502a86fdb4d7984b12cacd2faabbe0d","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":"6.17","status":"affected"},{"version":"0","lessThan":"6.17","status":"unaffected","versionType":"semver"},{"version":"6.17.3","lessThanOrEqual":"6.17.*","status":"unaffected","versionType":"semver"},{"version":"6.18","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":"6.17","versionEndExcluding":"6.17.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.17","versionEndExcluding":"6.18"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/b9ef4963227246b9222e1559ddeec8e7af63e6c6"},{"url":"https://git.kernel.org/stable/c/34904582b502a86fdb4d7984b12cacd2faabbe0d"}],"title":"bpf: Skip scalar adjustment for BPF_NEG if dst is a pointer","x_generator":{"engine":"bippy-1.2.0"}}}}