================================================================== BUG: KCSAN: data-race in netlink_getname / netlink_insert write to 0xffff88810d762af8 of 4 bytes by task 4313 on cpu 0: netlink_insert+0xe8/0x8e0 net/netlink/af_netlink.c:577 netlink_autobind+0xae/0x160 net/netlink/af_netlink.c:840 netlink_sendmsg+0x47c/0x7c0 net/netlink/af_netlink.c:1890 sock_sendmsg_nosec net/socket.c:654 [inline] sock_sendmsg net/socket.c:674 [inline] ____sys_sendmsg+0x360/0x4d0 net/socket.c:2350 ___sys_sendmsg net/socket.c:2404 [inline] __sys_sendmsg+0x1ed/0x270 net/socket.c:2433 __do_sys_sendmsg net/socket.c:2442 [inline] __se_sys_sendmsg net/socket.c:2440 [inline] __x64_sys_sendmsg+0x42/0x50 net/socket.c:2440 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff88810d762af8 of 4 bytes by task 4325 on cpu 1: netlink_getname+0xbb/0x180 net/netlink/af_netlink.c:1126 __sys_getsockname+0x10e/0x1a0 net/socket.c:1887 __do_sys_getsockname net/socket.c:1902 [inline] __se_sys_getsockname net/socket.c:1899 [inline] __x64_sys_getsockname+0x3e/0x50 net/socket.c:1899 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 4325 Comm: syz-executor.3 Not tainted 5.12.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================