{"id":"CVE-2026-80801","state":"PUBLISHED","title":"nfc: microread: validate target discovery payload lengths","description":"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 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.","publishedAt":"2026-09-04T15:13:15.263Z","updatedAt":"2026-10-19T08:43:54.522Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"cfad1ba87150e198be9ea32367a24e500e59de2c","status":"affected","lessThan":"c6de4241f2efbbab286efbb84a9c7190298b3052","versionType":"git"},{"version":"cfad1ba87150e198be9ea32367a24e500e59de2c","status":"affected","lessThan":"92a6f0201bb68391b5eba1b3f330af007d7323b6","versionType":"git"},{"version":"cfad1ba87150e198be9ea32367a24e500e59de2c","status":"affected","lessThan":"cb298672282421159e53ab311fe49d204c8a52da","versionType":"git"},{"version":"cfad1ba87150e198be9ea32367a24e500e59de2c","status":"affected","lessThan":"18f02354ed229b8e4561b580812d026e7eb29c85","versionType":"git"},{"version":"cfad1ba87150e198be9ea32367a24e500e59de2c","status":"affected","lessThan":"e6397fe7b8b5ef18e051f49612d40ff476c5f7d9","versionType":"git"},{"version":"cfad1ba87150e198be9ea32367a24e500e59de2c","status":"affected","lessThan":"d0902a7c454326c6384c614226ab8987f3fd425d","versionType":"git"},{"version":"cfad1ba87150e198be9ea32367a24e500e59de2c","status":"affected","lessThan":"dabfa26a208e56f4d8dbf26fddc48f188bdb0649","versionType":"git"},{"version":"cfad1ba87150e198be9ea32367a24e500e59de2c","status":"affected","lessThan":"953963b9ac5eecbb316617d337bfaa3d731e3c5e","versionType":"git"},{"version":"cfad1ba87150e198be9ea32367a24e500e59de2c","status":"affected","lessThan":"25519469972ef57c3edb1805dabd6c5612b90211","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nfc/microread/microread.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.9","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.9","versionType":"semver"},{"version":"5.10.267","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.218","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.185","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.154","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.106","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.47","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.11","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2.1","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nfc/microread/microread.c"]}],"references":["https://git.kernel.org/stable/c/c6de4241f2efbbab286efbb84a9c7190298b3052","https://git.kernel.org/stable/c/92a6f0201bb68391b5eba1b3f330af007d7323b6","https://git.kernel.org/stable/c/cb298672282421159e53ab311fe49d204c8a52da","https://git.kernel.org/stable/c/18f02354ed229b8e4561b580812d026e7eb29c85","https://git.kernel.org/stable/c/e6397fe7b8b5ef18e051f49612d40ff476c5f7d9","https://git.kernel.org/stable/c/d0902a7c454326c6384c614226ab8987f3fd425d","https://git.kernel.org/stable/c/dabfa26a208e56f4d8dbf26fddc48f188bdb0649","https://git.kernel.org/stable/c/953963b9ac5eecbb316617d337bfaa3d731e3c5e","https://git.kernel.org/stable/c/25519469972ef57c3edb1805dabd6c5612b90211"],"weaknesses":[],"ingestedAt":"2026-10-29T20:13:07.220Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/80xxx/CVE-2026-80801.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-80801","state":"PUBLISHED","datePublished":"2026-09-04T15:13:15.263Z","dateUpdated":"2026-10-19T08:43:54.522Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-08-26T14:34:25.794Z"},"containers":{"cna":{"title":"nfc: microread: validate target discovery payload lengths","descriptions":[{"lang":"en","value":"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 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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"cfad1ba87150e198be9ea32367a24e500e59de2c","status":"affected","lessThan":"c6de4241f2efbbab286efbb84a9c7190298b3052","versionType":"git"},{"version":"cfad1ba87150e198be9ea32367a24e500e59de2c","status":"affected","lessThan":"92a6f0201bb68391b5eba1b3f330af007d7323b6","versionType":"git"},{"version":"cfad1ba87150e198be9ea32367a24e500e59de2c","status":"affected","lessThan":"cb298672282421159e53ab311fe49d204c8a52da","versionType":"git"},{"version":"cfad1ba87150e198be9ea32367a24e500e59de2c","status":"affected","lessThan":"18f02354ed229b8e4561b580812d026e7eb29c85","versionType":"git"},{"version":"cfad1ba87150e198be9ea32367a24e500e59de2c","status":"affected","lessThan":"e6397fe7b8b5ef18e051f49612d40ff476c5f7d9","versionType":"git"},{"version":"cfad1ba87150e198be9ea32367a24e500e59de2c","status":"affected","lessThan":"d0902a7c454326c6384c614226ab8987f3fd425d","versionType":"git"},{"version":"cfad1ba87150e198be9ea32367a24e500e59de2c","status":"affected","lessThan":"dabfa26a208e56f4d8dbf26fddc48f188bdb0649","versionType":"git"},{"version":"cfad1ba87150e198be9ea32367a24e500e59de2c","status":"affected","lessThan":"953963b9ac5eecbb316617d337bfaa3d731e3c5e","versionType":"git"},{"version":"cfad1ba87150e198be9ea32367a24e500e59de2c","status":"affected","lessThan":"25519469972ef57c3edb1805dabd6c5612b90211","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nfc/microread/microread.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"3.9","status":"affected"},{"version":"0","status":"unaffected","lessThan":"3.9","versionType":"semver"},{"version":"5.10.267","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.218","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.185","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.154","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.106","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.47","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"7.1.11","status":"unaffected","lessThanOrEqual":"7.1.*","versionType":"semver"},{"version":"7.2.1","status":"unaffected","lessThanOrEqual":"7.2.*","versionType":"semver"},{"version":"7.3","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/nfc/microread/microread.c"]}],"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"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-19T08:43:54.522Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.9","versionEndExcluding":"5.10.267"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.9","versionEndExcluding":"5.15.218"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.9","versionEndExcluding":"6.1.185"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.9","versionEndExcluding":"6.6.154"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.9","versionEndExcluding":"6.12.106"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.9","versionEndExcluding":"6.18.47"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.9","versionEndExcluding":"7.1.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.9","versionEndExcluding":"7.2.1"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.9","versionEndExcluding":"7.3"}]}]}],"x_generator":{"engine":"bippy-1.2.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