CVE-2026-31629

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A use-after-free issue exists in the NFC LLCP component. In the functions nfc llcp recv hdlc() and nfc llcp recv disc(), when the socket state is LLCP CLOSED, the code calls release sock() and nfc llcp sock put() but fails to return. This causes execution to fall through and call these functions a second time, resulting in a double release sock() and a reference count underflow via double nfc llcp sock put().

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.