{"schema":"threatline.record/2","record":{"id":"CVE-2026-98611","aliases":[],"summary":"bpf: Check params size before reading reserved fields","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Check params size before reading reserved fields\n\nbpf_crypto_ctx_create() is a kfunc whose second argument is declared\nwith the __sz annotation, so the verifier only guarantees that\nparams__sz bytes of params are valid.  The function nevertheless reads\nparams->reserved[0] and params->reserved[1] (offsets 14 and 15) before\ncomparing params__sz against the size of struct bpf_crypto_params, so a\nBPF program can pass a shorter buffer and have the kernel read past the\nregion that was validated for it.\n\nMove the size check in front of the reserved field reads.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98611","source_modified_at":"2026-10-19T09:22:38.197Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"3e1c6f35409f9e447bf37f64840f5b65576bfb78","lessThan":"e03253f5d65ebcd2a6d479f140c3bd9c7e4fb84a","status":"affected","versionType":"git"},{"version":"3e1c6f35409f9e447bf37f64840f5b65576bfb78","lessThan":"cd12d3e08620257fbcaa262785d7f4b9473afc7a","status":"affected","versionType":"git"},{"version":"3e1c6f35409f9e447bf37f64840f5b65576bfb78","lessThan":"86a0e945fb645ea90233fde239cd2de79f01974c","status":"affected","versionType":"git"},{"version":"3e1c6f35409f9e447bf37f64840f5b65576bfb78","lessThan":"a11212910cf09b2fe8db9afa41ef60c4f81879c5","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98611","source_modified_at":"2026-10-19T09:22:38.197Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"6.10","status":"affected"},{"version":"0","lessThan":"6.10","status":"unaffected","versionType":"semver"},{"version":"6.12.112","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.55","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.9","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98611","source_modified_at":"2026-10-19T09:22:38.197Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"86a0e945fb645ea90233fde239cd2de79f01974c","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00168,"percentile":0.05718,"score_date":"2026-10-23"},"published_at":"2026-10-18T15:19:26.922Z","modified_at":"2026-10-19T09:22:38.197Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98611","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:22:38.197Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98611","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://git.kernel.org/stable/c/e03253f5d65ebcd2a6d479f140c3bd9c7e4fb84a"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/cd12d3e08620257fbcaa262785d7f4b9473afc7a"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/86a0e945fb645ea90233fde239cd2de79f01974c"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/a11212910cf09b2fe8db9afa41ef60c4f81879c5"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-19T09:22:38.197Z","content_hash":"0602b992cada24b8f55ce884ed3ac20c63998e2a9dad2668c7d0f9b7b6473e3b"}}