CVE-2026-80801

Description

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.

References

• https://git.kernel.org/stable/c/18f02354ed229b8e4561b580812d026e7eb29c85
• https://git.kernel.org/stable/c/25519469972ef57c3edb1805dabd6c5612b90211
• https://git.kernel.org/stable/c/92a6f0201bb68391b5eba1b3f330af007d7323b6
• https://git.kernel.org/stable/c/953963b9ac5eecbb316617d337bfaa3d731e3c5e
• https://git.kernel.org/stable/c/c6de4241f2efbbab286efbb84a9c7190298b3052