==================================================================
BUG: KCSAN: data-race in netlink_getname / netlink_insert

write to 0xffff88814a41b310 of 4 bytes by task 22960 on cpu 0:
 netlink_insert+0xe8/0x900 net/netlink/af_netlink.c:579
 netlink_autobind+0xae/0x160 net/netlink/af_netlink.c:845
 netlink_sendmsg+0x48a/0x7d0 net/netlink/af_netlink.c:1879
 sock_sendmsg_nosec net/socket.c:704 [inline]
 sock_sendmsg net/socket.c:724 [inline]
 ____sys_sendmsg+0x39a/0x510 net/socket.c:2409
 ___sys_sendmsg net/socket.c:2463 [inline]
 __sys_sendmsg+0x195/0x230 net/socket.c:2492
 __do_sys_sendmsg net/socket.c:2501 [inline]
 __se_sys_sendmsg net/socket.c:2499 [inline]
 __x64_sys_sendmsg+0x42/0x50 net/socket.c:2499
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

read to 0xffff88814a41b310 of 4 bytes by task 22981 on cpu 1:
 netlink_getname+0xbb/0x180 net/netlink/af_netlink.c:1133
 __sys_getsockname+0x11d/0x1b0 net/socket.c:1946
 __do_sys_getsockname net/socket.c:1961 [inline]
 __se_sys_getsockname net/socket.c:1958 [inline]
 __x64_sys_getsockname+0x3e/0x50 net/socket.c:1958
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x44/0xae

value changed: 0x00000000 -> 0x00001678

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 22981 Comm: syz-executor.3 Not tainted 5.16.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
==================================================================