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

read to 0xffff88814a6eeb28 of 8 bytes by task 18445 on cpu 1:
 netlink_recvmsg+0xee/0x740 net/netlink/af_netlink.c:1967
 sock_recvmsg_nosec net/socket.c:995 [inline]
 sock_recvmsg net/socket.c:1013 [inline]
 __sys_recvfrom+0x1db/0x2a0 net/socket.c:2169
 __do_sys_recvfrom net/socket.c:2187 [inline]
 __se_sys_recvfrom net/socket.c:2183 [inline]
 __x64_sys_recvfrom+0x74/0x90 net/socket.c:2183
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

write to 0xffff88814a6eeb28 of 8 bytes by task 18444 on cpu 0:
 netlink_recvmsg+0x12c/0x740 net/netlink/af_netlink.c:1968
 ____sys_recvmsg+0x162/0x2f0
 ___sys_recvmsg net/socket.c:2743 [inline]
 do_recvmmsg+0x2f1/0x710 net/socket.c:2837
 __sys_recvmmsg net/socket.c:2916 [inline]
 __do_sys_recvmmsg net/socket.c:2939 [inline]
 __se_sys_recvmmsg net/socket.c:2932 [inline]
 __x64_sys_recvmmsg+0xde/0x160 net/socket.c:2932
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 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: 18444 Comm: syz-executor.5 Tainted: G        W          6.0.0-rc5-syzkaller-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022
==================================================================