Description: net: nfc: llcp: Add lock when modifying device list
References:
Notes:
 carnil> Introduced in 6709d4b7bc2e ("net: nfc: Fix use-after-free caused by
 carnil> nfc_llcp_find_local"). Vulnerable versions: 5.4.251 5.10.188 5.15.121 6.1.39
 carnil> 6.3.13 6.4.4 6.5-rc1.
Bugs:
upstream: released (6.6-rc5) [dfc7f7a988dad34c3bf4c053124fb26aa6c5f916]
6.7-upstream-stable: N/A "Fixed before branching point"
6.6-upstream-stable: N/A "Fixed before branching point"
6.1-upstream-stable: released (6.1.57) [7562780e32b84196731d57dd24563546fcf6d082]
5.10-upstream-stable: released (5.10.198) [dba849cc98113b145c6e720122942c00b8012bdb]
4.19-upstream-stable: N/A "Vulnerable code not present"
sid: released (6.5.8-1)
6.1-bookworm-security: released (6.1.64-1)
5.10-bullseye-security: released (5.10.205-1)
4.19-buster-security: N/A "Vulnerable code not present"