{"id":"CVE-2026-80801","title":"nfc: microread: validate target discovery payload lengths","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: microread: validate target discovery payload lengths\n\nmicroread_target_discovered() parses target discovery payloads from\nskb->data according to the HCI gate. The …","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c < c6de4241f2efbbab286efbb84a9c7190298b3052","Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c < 92a6f0201bb68391b5eba1b3f330af007d7323b6","Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c < cb298672282421159e53ab311fe49d204c8a52da","Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c < 18f02354ed229b8e4561b580812d026e7eb29c85","Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c < e6397fe7b8b5ef18e051f49612d40ff476c5f7d9","Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c < d0902a7c454326c6384c614226ab8987f3fd425d","Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c < dabfa26a208e56f4d8dbf26fddc48f188bdb0649","Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c < 953963b9ac5eecbb316617d337bfaa3d731e3c5e","Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c < 25519469972ef57c3edb1805dabd6c5612b90211","Linux 3.9"],"published":"2026-09-04","updated":"2026-10-19","sourceUpdated":"2026-10-19T08:43:54.522Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-80801","references":[{"url":"https://git.kernel.org/stable/c/c6de4241f2efbbab286efbb84a9c7190298b3052"},{"url":"https://git.kernel.org/stable/c/92a6f0201bb68391b5eba1b3f330af007d7323b6"},{"url":"https://git.kernel.org/stable/c/cb298672282421159e53ab311fe49d204c8a52da"},{"url":"https://git.kernel.org/stable/c/18f02354ed229b8e4561b580812d026e7eb29c85"},{"url":"https://git.kernel.org/stable/c/e6397fe7b8b5ef18e051f49612d40ff476c5f7d9"},{"url":"https://git.kernel.org/stable/c/d0902a7c454326c6384c614226ab8987f3fd425d"},{"url":"https://git.kernel.org/stable/c/dabfa26a208e56f4d8dbf26fddc48f188bdb0649"},{"url":"https://git.kernel.org/stable/c/953963b9ac5eecbb316617d337bfaa3d731e3c5e"},{"url":"https://git.kernel.org/stable/c/25519469972ef57c3edb1805dabd6c5612b90211"}],"tags":["cve.org"],"epss":0.00243,"epssPercentile":0.1438,"ingestedAt":"2026-10-19T09:16:01.526Z","slug":"CVE-2026-80801","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnfc: microread: validate target discovery payload lengths\n\nmicroread_target_discovered() parses target discovery payloads from\nskb->data according to the HCI gate. The fixed field offsets and UID\ncopies were checked only against the destination nfc_target buffers, not\nagainst the actual skb length.\n\nValidate that each gate-specific payload contains the fixed fields and\nUID bytes before reading or copying them.\n\n## Affected\n\n- `Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c < c6de4241f2efbbab286efbb84a9c7190298b3052`\n- `Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c < 92a6f0201bb68391b5eba1b3f330af007d7323b6`\n- `Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c < cb298672282421159e53ab311fe49d204c8a52da`\n- `Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c < 18f02354ed229b8e4561b580812d026e7eb29c85`\n- `Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c < e6397fe7b8b5ef18e051f49612d40ff476c5f7d9`\n- `Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c < d0902a7c454326c6384c614226ab8987f3fd425d`\n- `Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c < dabfa26a208e56f4d8dbf26fddc48f188bdb0649`\n- `Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c < 953963b9ac5eecbb316617d337bfaa3d731e3c5e`\n- `Linux >= cfad1ba87150e198be9ea32367a24e500e59de2c < 25519469972ef57c3edb1805dabd6c5612b90211`\n- `Linux 3.9`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}