{"id":"CVE-2026-80803","title":"nfc: digital: clamp SENSF_RES length to the destination buffer","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: digital: clamp SENSF_RES length to the destination buffer\n\ndigital_in_recv_sensf_res() memcpy()s resp->len bytes from a remote\nNFC-F device response into the NFC_S…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 8c0695e4998dd268ff2a05951961247b7e015651 < 6afb29751ee731e7f7a96feb8a15f91441e552ba","Linux >= 8c0695e4998dd268ff2a05951961247b7e015651 < e886c63d2ca7108826076989103a1ffa8a0bb8f4","Linux >= 8c0695e4998dd268ff2a05951961247b7e015651 < 4e942da2869bcd646353eef706b7dd82efeb9db5","Linux >= 8c0695e4998dd268ff2a05951961247b7e015651 < d0756a98277e383c26fead988a96c91f0781cd7f","Linux >= 8c0695e4998dd268ff2a05951961247b7e015651 < af4c0606f743e009254a8d252096855335ade85d","Linux >= 8c0695e4998dd268ff2a05951961247b7e015651 < a56773e649ea99b344d6bbaf90f34c8e3fadef5d","Linux >= 8c0695e4998dd268ff2a05951961247b7e015651 < a1ef9bddfbb3ae42b036c5aa16cf386d78db70b6","Linux >= 8c0695e4998dd268ff2a05951961247b7e015651 < 31aa28ed732f66ab83c40ef53d99791be69b85c4","Linux >= 8c0695e4998dd268ff2a05951961247b7e015651 < 344a56d7c8e0f3cbaff0bcb1bcd95a1a1db24b16","Linux 3.13"],"published":"2026-09-04","updated":"2026-10-19","sourceUpdated":"2026-10-19T08:43:56.485Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-80803","references":[{"url":"https://git.kernel.org/stable/c/6afb29751ee731e7f7a96feb8a15f91441e552ba"},{"url":"https://git.kernel.org/stable/c/e886c63d2ca7108826076989103a1ffa8a0bb8f4"},{"url":"https://git.kernel.org/stable/c/4e942da2869bcd646353eef706b7dd82efeb9db5"},{"url":"https://git.kernel.org/stable/c/d0756a98277e383c26fead988a96c91f0781cd7f"},{"url":"https://git.kernel.org/stable/c/af4c0606f743e009254a8d252096855335ade85d"},{"url":"https://git.kernel.org/stable/c/a56773e649ea99b344d6bbaf90f34c8e3fadef5d"},{"url":"https://git.kernel.org/stable/c/a1ef9bddfbb3ae42b036c5aa16cf386d78db70b6"},{"url":"https://git.kernel.org/stable/c/31aa28ed732f66ab83c40ef53d99791be69b85c4"},{"url":"https://git.kernel.org/stable/c/344a56d7c8e0f3cbaff0bcb1bcd95a1a1db24b16"}],"tags":["cve.org"],"epss":0.00243,"epssPercentile":0.14379,"ingestedAt":"2026-10-19T09:16:01.526Z","slug":"CVE-2026-80803","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnfc: digital: clamp SENSF_RES length to the destination buffer\n\ndigital_in_recv_sensf_res() memcpy()s resp->len bytes from a remote\nNFC-F device response into the NFC_SENSF_RES_MAXSIZE-byte target.sensf_res\nfield without an upper-bound check. A nearby malicious NFC-F device can\nsend an oversized SENSF_RES response to overflow the stack-local struct\nnfc_target.\n\nClamp resp->len to NFC_SENSF_RES_MAXSIZE before the copy.\n\nFound by 0sec automated security-research tooling (https://0sec.ai).\n\n## Affected\n\n- `Linux >= 8c0695e4998dd268ff2a05951961247b7e015651 < 6afb29751ee731e7f7a96feb8a15f91441e552ba`\n- `Linux >= 8c0695e4998dd268ff2a05951961247b7e015651 < e886c63d2ca7108826076989103a1ffa8a0bb8f4`\n- `Linux >= 8c0695e4998dd268ff2a05951961247b7e015651 < 4e942da2869bcd646353eef706b7dd82efeb9db5`\n- `Linux >= 8c0695e4998dd268ff2a05951961247b7e015651 < d0756a98277e383c26fead988a96c91f0781cd7f`\n- `Linux >= 8c0695e4998dd268ff2a05951961247b7e015651 < af4c0606f743e009254a8d252096855335ade85d`\n- `Linux >= 8c0695e4998dd268ff2a05951961247b7e015651 < a56773e649ea99b344d6bbaf90f34c8e3fadef5d`\n- `Linux >= 8c0695e4998dd268ff2a05951961247b7e015651 < a1ef9bddfbb3ae42b036c5aa16cf386d78db70b6`\n- `Linux >= 8c0695e4998dd268ff2a05951961247b7e015651 < 31aa28ed732f66ab83c40ef53d99791be69b85c4`\n- `Linux >= 8c0695e4998dd268ff2a05951961247b7e015651 < 344a56d7c8e0f3cbaff0bcb1bcd95a1a1db24b16`\n- `Linux 3.13`\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":[]}