{"schema":"threatline.record/2","record":{"id":"CVE-2026-98791","aliases":[],"summary":"net/mlx5e: Fix AF_XDP TX timestamp teardown NULL dereference","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/mlx5e: Fix AF_XDP TX timestamp teardown NULL dereference\n\nDuring XSK TX queue teardown, outstanding descriptors are completed\nwithout a CQE. If one requested a TX timestamp, the completion path\npasses that NULL CQE to mlx5e_xsk_fill_timestamp(), which dereferences\nit.\n\nReturn zero when no CQE is available, indicating that teardown did not\nproduce a TX timestamp.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98791","source_modified_at":"2026-10-19T09:25:44.148Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"ec706a860eba99bf934d59f74b5db90af44e882e","lessThan":"fce70b6bf9f3261e887419a4e7caa25b80fa9d55","status":"affected","versionType":"git"},{"version":"ec706a860eba99bf934d59f74b5db90af44e882e","lessThan":"f81d40e2eb69552334f510114f3e6edd0d43178b","status":"affected","versionType":"git"},{"version":"ec706a860eba99bf934d59f74b5db90af44e882e","lessThan":"63df0ef4c6e3105589e6bb2e758ce611b0ada86c","status":"affected","versionType":"git"},{"version":"ec706a860eba99bf934d59f74b5db90af44e882e","lessThan":"7b97273cbebe9dd4fddc457f0c4f2a124d0e3996","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98791","source_modified_at":"2026-10-19T09:25:44.148Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"6.8","status":"affected"},{"version":"0","lessThan":"6.8","status":"unaffected","versionType":"semver"},{"version":"6.12.113","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.56","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.10","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-2026-98791","source_modified_at":"2026-10-19T09:25:44.148Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"63df0ef4c6e3105589e6bb2e758ce611b0ada86c","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98791","source_modified_at":"2026-10-19T09:25:44.148Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"7b97273cbebe9dd4fddc457f0c4f2a124d0e3996","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00168,"percentile":0.05742,"score_date":"2026-10-23"},"published_at":"2026-10-18T15:48:30.080Z","modified_at":"2026-10-19T09:25:44.148Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98791","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-19T09:25:44.148Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98791","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/fce70b6bf9f3261e887419a4e7caa25b80fa9d55"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/f81d40e2eb69552334f510114f3e6edd0d43178b"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/63df0ef4c6e3105589e6bb2e758ce611b0ada86c"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/7b97273cbebe9dd4fddc457f0c4f2a124d0e3996"}],"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":"2026-10-19T09:25:44.148Z","content_hash":"98b16282dbd1a3faecd8c792ea6df85f7943233246ca46c9ab28f3196368de2f"}}