CVE-2026-80801

Summary

In the Linux kernel, the following vulnerability has been resolved:

nfc: microread: validate target discovery payload lengths

microread_target_discovered() parses target discovery payloads from skb->data according to the HCI gate. The fixed field offsets and UID copies were checked only against the destination nfc_target buffers, not against the actual skb length.

Validate that each gate-specific payload contains the fixed fields and UID bytes before reading or copying them.

Affected Software

VendorProductVersion RangeStatus
LinuxLinuxcfad1ba87150e198be9ea32367a24e500e59de2c < c6de4241f2efbbab286efbb84a9c7190298b3052affected
LinuxLinuxcfad1ba87150e198be9ea32367a24e500e59de2c < 92a6f0201bb68391b5eba1b3f330af007d7323b6affected
LinuxLinuxcfad1ba87150e198be9ea32367a24e500e59de2c < cb298672282421159e53ab311fe49d204c8a52daaffected
LinuxLinuxcfad1ba87150e198be9ea32367a24e500e59de2c < 18f02354ed229b8e4561b580812d026e7eb29c85affected
LinuxLinuxcfad1ba87150e198be9ea32367a24e500e59de2c < e6397fe7b8b5ef18e051f49612d40ff476c5f7d9affected
LinuxLinuxcfad1ba87150e198be9ea32367a24e500e59de2c < d0902a7c454326c6384c614226ab8987f3fd425daffected
LinuxLinuxcfad1ba87150e198be9ea32367a24e500e59de2c < dabfa26a208e56f4d8dbf26fddc48f188bdb0649affected
LinuxLinuxcfad1ba87150e198be9ea32367a24e500e59de2c < 953963b9ac5eecbb316617d337bfaa3d731e3c5eaffected
LinuxLinuxcfad1ba87150e198be9ea32367a24e500e59de2c < 25519469972ef57c3edb1805dabd6c5612b90211affected
LinuxLinux3.9affected
LinuxLinux0 < 3.9unaffected
LinuxLinux5.10.267 <= 5.10.*unaffected
LinuxLinux5.15.218 <= 5.15.*unaffected
LinuxLinux6.1.185 <= 6.1.*unaffected
LinuxLinux6.6.154 <= 6.6.*unaffected
LinuxLinux6.12.106 <= 6.12.*unaffected
LinuxLinux6.18.47 <= 6.18.*unaffected
LinuxLinux7.1.11 <= 7.1.*unaffected
LinuxLinux7.2.1 <= 7.2.*unaffected
LinuxLinux7.3-rc1 <= *unaffected

Weaknesses

References