{"schema":"threatline.record/2","record":{"id":"CVE-2026-98041","aliases":[],"summary":"bpf: Don't predict JMP32 pointer vs zero comparisons","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Don't predict JMP32 pointer vs zero comparisons\n\nConsider the following program:\n\n        r1 = map_value;      /* low 32 bits are zero at runtime */\n        r6 = 0xdead000000000000;\n        if w1 != 0 goto l1;\n    l0: r1 += r6;\n        r2 = *(u64 *)(r1 + 0);\n        exit;\n    l1: r6 = 0;\n        goto l0;\n\nAt the moment is_branch_taken() reports the jump as always taken,\nbecause it does not distinguish between BPF_JMP and BPF_JMP32\ncomparisons when processing 'if w1 != 0 ...'.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98041","source_modified_at":"2026-10-21T12:54:10.647Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"cac616db39c207dc63465a4e05c6ce0e60b2cce4","lessThan":"6e1544986536734166176c3add504add23bcbd15","status":"affected","versionType":"git"},{"version":"cac616db39c207dc63465a4e05c6ce0e60b2cce4","lessThan":"d16f0eafcaa62e677a2b5b0dabc1f8d31dfe3d4d","status":"affected","versionType":"git"},{"version":"cac616db39c207dc63465a4e05c6ce0e60b2cce4","lessThan":"e2ae33247e8b2dbe9d116d3e61cadf6d548339c6","status":"affected","versionType":"git"},{"version":"cac616db39c207dc63465a4e05c6ce0e60b2cce4","lessThan":"a4d7f94c1ca914469ced665ec2f98be669aef462","status":"affected","versionType":"git"},{"version":"cac616db39c207dc63465a4e05c6ce0e60b2cce4","lessThan":"e51179a4e09846f8fd0f26a05068520de2b301bf","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98041","source_modified_at":"2026-10-21T12:54:10.647Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"5.8","status":"affected"},{"version":"0","lessThan":"5.8","status":"unaffected","versionType":"semver"},{"version":"6.6.160","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.111","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.53","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.7","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-2026-98041","source_modified_at":"2026-10-21T12:54:10.647Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"6e1544986536734166176c3add504add23bcbd15","basis":"first unaffected version stated in the CVE record"}],"cvss":7,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00144,"percentile":0.03389,"score_date":"2026-10-23"},"published_at":"2026-09-25T10:23:53.619Z","modified_at":"2026-10-21T12:54:10.647Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98041","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-21T12:54:10.647Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98041","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/6e1544986536734166176c3add504add23bcbd15"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/d16f0eafcaa62e677a2b5b0dabc1f8d31dfe3d4d"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/e2ae33247e8b2dbe9d116d3e61cadf6d548339c6"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/a4d7f94c1ca914469ced665ec2f98be669aef462"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/e51179a4e09846f8fd0f26a05068520de2b301bf"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-21T12:54:10.647Z","content_hash":"70a9a6459821a4406d4c35c924da1f2cefe7958ea353c51b29f73a8229076db4"}}