==================================================================
BUG: KCSAN: data-race in netlink_recvmsg / netlink_recvmsg

read to 0xffff88812517a338 of 8 bytes by task 11606 on cpu 1:
 netlink_recvmsg+0xea/0x730 net/netlink/af_netlink.c:1988
 sock_recvmsg_nosec net/socket.c:1017 [inline]
 sock_recvmsg net/socket.c:1038 [inline]
 __sys_recvfrom+0x1ee/0x2e0 net/socket.c:2194
 __do_sys_recvfrom net/socket.c:2212 [inline]
 __se_sys_recvfrom net/socket.c:2208 [inline]
 __x64_sys_recvfrom+0x78/0x90 net/socket.c:2208
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

write to 0xffff88812517a338 of 8 bytes by task 11605 on cpu 0:
 netlink_recvmsg+0x114/0x730 net/netlink/af_netlink.c:1989
 sock_recvmsg_nosec net/socket.c:1017 [inline]
 sock_recvmsg net/socket.c:1038 [inline]
 __sys_recvfrom+0x1ee/0x2e0 net/socket.c:2194
 __do_sys_recvfrom net/socket.c:2212 [inline]
 __se_sys_recvfrom net/socket.c:2208 [inline]
 __x64_sys_recvfrom+0x78/0x90 net/socket.c:2208
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

value changed: 0x0000000000000000 -> 0x0000000000001000

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 11605 Comm: syz-executor.1 Not tainted 6.3.0-rc2-syzkaller-00050-g9c1bec9c0b08 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
==================================================================