CVE-2023-53824 netlink: annotate lockless accesses to nlk->max_recvmsg_len

In the Linux kernel, the following vulnerability has been resolved: netlink: annotate lockless accesses to nlk-maxrecvmsglen syzbot reported a data-race in data-race in netlinkrecvmsg 1 Indeed, netlinkrecvmsg can be run concurrently, and netlinkdump also needs protection. 1 BUG: KCSAN: data-race ...