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2026年9月5日

CVE-2026-80801 – In the Linux kernel, the following vulnerability has been resolved: nfc: microread: valid

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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.