{"id":"CVE-2026-98575","title":"nfc: pn533: fix OOB read in pn533_acr122_is_rx_frame_valid()","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnfc: pn533: fix OOB read in pn533_acr122_is_rx_frame_valid()\n\nframe->ccid.datalen is read directly from the USB response frame\nand used, unchecked, as an index into fra…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc < 8db3b1e012a8b25078dfa1efabe3d0cd2916dcba","Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc < 74b3fbc60907ee97e3af3249091f57351b53a6d6","Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc < 8a0f1bb790d964893db7fc59febda9a534db07b3","Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc < ea82b7576793219fa10a8b545f8338998b2a9ce2","Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc < 72b8b2126e854d6756a1aa4bdc66d7457b832294","Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc < e72cbedc4596e808d22dd2b9fff666ece76f8dd6","Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc < 2450a388367231fb7dd798538f393af227c00c4d","Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc < b61732f47316d45f27706db7812950145d3327b5","Linux 4.7"],"published":"2026-10-18","updated":"2026-10-18","sourceUpdated":"2026-10-18T15:18:40.577Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-98575","references":[{"url":"https://git.kernel.org/stable/c/8db3b1e012a8b25078dfa1efabe3d0cd2916dcba"},{"url":"https://git.kernel.org/stable/c/74b3fbc60907ee97e3af3249091f57351b53a6d6"},{"url":"https://git.kernel.org/stable/c/8a0f1bb790d964893db7fc59febda9a534db07b3"},{"url":"https://git.kernel.org/stable/c/ea82b7576793219fa10a8b545f8338998b2a9ce2"},{"url":"https://git.kernel.org/stable/c/72b8b2126e854d6756a1aa4bdc66d7457b832294"},{"url":"https://git.kernel.org/stable/c/e72cbedc4596e808d22dd2b9fff666ece76f8dd6"},{"url":"https://git.kernel.org/stable/c/2450a388367231fb7dd798538f393af227c00c4d"},{"url":"https://git.kernel.org/stable/c/b61732f47316d45f27706db7812950145d3327b5"}],"tags":["cve.org"],"ingestedAt":"2026-10-18T15:45:12.255Z","slug":"CVE-2026-98575","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnfc: pn533: fix OOB read in pn533_acr122_is_rx_frame_valid()\n\nframe->ccid.datalen is read directly from the USB response frame\nand used, unchecked, as an index into frame->data[]. A malicious or\nmalfunctioning device can set this field to an arbitrary value,\ncausing the driver to read far outside the received buffer.\n\nBound ccid.datalen against the maximum possible ACR122 frame size\nbefore using it. This replaces the existing datalen == 0 check,\nsince datalen < 2 already covers that case and additionally\nrejects datalen == 1, which would still underflow the\n\"datalen - 2\" offset used below.\n\n## Affected\n\n- `Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc < 8db3b1e012a8b25078dfa1efabe3d0cd2916dcba`\n- `Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc < 74b3fbc60907ee97e3af3249091f57351b53a6d6`\n- `Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc < 8a0f1bb790d964893db7fc59febda9a534db07b3`\n- `Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc < ea82b7576793219fa10a8b545f8338998b2a9ce2`\n- `Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc < 72b8b2126e854d6756a1aa4bdc66d7457b832294`\n- `Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc < e72cbedc4596e808d22dd2b9fff666ece76f8dd6`\n- `Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc < 2450a388367231fb7dd798538f393af227c00c4d`\n- `Linux >= 9815c7cf22daceabfb919ddcd6f2c80e049c1fbc < b61732f47316d45f27706db7812950145d3327b5`\n- `Linux 4.7`\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":[]}