CVE-2023-52502 net: nfc: fix races in nfc_llcp_sock_get() and nfc_llcp_sock_get_sn()

In the Linux kernel, the following vulnerability has been resolved: net: nfc: fix races in nfcllcpsockget and nfcllcpsockgetsn Sili Luo reported a race in nfcllcpsockget, leading to UAF. Getting a reference on the socket found in a lookup while holding a lock should happen before releasing the...