{"schema":"threatline.record/2","record":{"id":"CVE-2026-97408","aliases":[],"summary":"Bluetooth: L2CAP: validate connectionless PSM length","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: L2CAP: validate connectionless PSM length\n\nConnectionless L2CAP frames carry a two-byte PSM at the start of the\npayload.  l2cap_recv_frame() currently reads that PSM unconditionally\nafter validating only the outer L2CAP length.\n\nA malformed connectionless frame with a zero- or one-byte payload can\ntherefore make the parser read beyond the advertised skb payload and use\ntailroom bytes as part of the PSM.  A VHCI-backed QEMU reproducer\ninjected a one-byte connectionless payload and reached the unchecked\nread.\n\nReject connectionless frames that cannot contain the PSM before reading\nor pulling it.  This preserves all valid connectionless frames while\ndropping only structurally incomplete packets.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97408","source_modified_at":"2026-10-03T10:58:02.384Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"Linux","vendor":"Linux","versions":[{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"8104cd9859b6de0826cffa68adf2c1461185823b","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"9448e6f693fcf1f0ac4ee648a9b2cc83bfe4a982","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"22fc1ce4e37c81d4e7aac01566ebdc232214540d","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"72e26293a231f63a856340d3a1f0f5fc29bf87e5","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"3502ede8aed3c3ee1786d952a11054ac737d1a38","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"ae69dca122f6d6046a68cf40153e6e827c77ff5c","status":"affected","versionType":"git"},{"version":"1da177e4c3f41524e886b7f1b8a0c1fc7321cac2","lessThan":"a40a5f922546b3bd7c094d882b29177db4f2abe0","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97408","source_modified_at":"2026-10-03T10:58:02.384Z","fetched_at":"2026-10-23T18:52:38.922436Z","product":"Linux","vendor":"Linux","versions":[{"version":"2.6.12","status":"affected"},{"version":"0","lessThan":"2.6.12","status":"unaffected","versionType":"semver"},{"version":"5.10.271","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.222","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.189","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.6.158","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","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97408","source_modified_at":"2026-10-03T10:58:02.384Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"Linux","ecosystem":null},"version":"8104cd9859b6de0826cffa68adf2c1461185823b","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97408","source_modified_at":"2026-10-03T10:58:02.384Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"Linux","ecosystem":null},"version":"9448e6f693fcf1f0ac4ee648a9b2cc83bfe4a982","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97408","source_modified_at":"2026-10-03T10:58:02.384Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"Linux","ecosystem":null},"version":"22fc1ce4e37c81d4e7aac01566ebdc232214540d","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97408","source_modified_at":"2026-10-03T10:58:02.384Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"Linux","ecosystem":null},"version":"72e26293a231f63a856340d3a1f0f5fc29bf87e5","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-97408","source_modified_at":"2026-10-03T10:58:02.384Z","fetched_at":"2026-10-23T18:52:38.922436Z","package":{"name":"Linux","ecosystem":null},"version":"3502ede8aed3c3ee1786d952a11054ac737d1a38","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00173,"percentile":0.06352,"score_date":"2026-10-23"},"published_at":"2026-09-24T16:03:15.141Z","modified_at":"2026-10-03T10:58:02.384Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-97408","fetched_at":"2026-10-23T18:52:38.922436Z","source_modified_at":"2026-10-03T10:58:02.384Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-97408","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/8104cd9859b6de0826cffa68adf2c1461185823b"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/9448e6f693fcf1f0ac4ee648a9b2cc83bfe4a982"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/22fc1ce4e37c81d4e7aac01566ebdc232214540d"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/72e26293a231f63a856340d3a1f0f5fc29bf87e5"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/3502ede8aed3c3ee1786d952a11054ac737d1a38"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/ae69dca122f6d6046a68cf40153e6e827c77ff5c"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/a40a5f922546b3bd7c094d882b29177db4f2abe0"}],"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":"2026-10-03T10:58:02.384Z","content_hash":"5c79a7c269b686bbd35de818bad331ca9b1b290d009b2054a5bec52545e500f9"}}