CVE-2026-31629

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> nfc: llcp: add missing return after LLCP_CLOSED checks<br /> <br /> In nfc_llcp_recv_hdlc() and nfc_llcp_recv_disc(), when the socket<br /> state is LLCP_CLOSED, the code correctly calls release_sock() and<br /> nfc_llcp_sock_put() but fails to return. Execution falls through to<br /> the remainder of the function, which calls release_sock() and<br /> nfc_llcp_sock_put() again. This results in a double release_sock()<br /> and a refcount underflow via double nfc_llcp_sock_put(), leading to<br /> a use-after-free.<br /> <br /> Add the missing return statements after the LLCP_CLOSED branches<br /> in both functions to prevent the fall-through.