{"dataType": "CVE_RECORD", "dataVersion": "5.1", "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": "2025-10-28T11:48:26.654Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-10-28T11:48:26.654Z"}, "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-rc1", "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-rc1"}]}]}], "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"}}}}

{}

{"cveTags": [], "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."}], "id": "CVE-2025-40050", "lastModified": "2025-10-28T12:15:39.163", "metrics": {}, "published": "2025-10-28T12:15:39.163", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/34904582b502a86fdb4d7984b12cacd2faabbe0d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b9ef4963227246b9222e1559ddeec8e7af63e6c6"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}