================================================================== BUG: KCSAN: data-race in netlink_recvmsg / netlink_recvmsg write to 0xffff88812b15e320 of 8 bytes by task 5739 on cpu 1: netlink_recvmsg+0x130/0x7d0 net/netlink/af_netlink.c:1975 sock_recvmsg_nosec net/socket.c:888 [inline] sock_recvmsg net/socket.c:906 [inline] __sys_recvfrom+0x1d7/0x2a0 net/socket.c:2034 __do_sys_recvfrom net/socket.c:2052 [inline] __se_sys_recvfrom net/socket.c:2048 [inline] __x64_sys_recvfrom+0x74/0x90 net/socket.c:2048 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff88812b15e320 of 8 bytes by task 5731 on cpu 0: netlink_recvmsg+0xef/0x7d0 net/netlink/af_netlink.c:1974 ____sys_recvmsg+0x15d/0x310 include/linux/uio.h:234 ___sys_recvmsg net/socket.c:2611 [inline] __sys_recvmsg+0x1d2/0x3a0 net/socket.c:2641 __do_sys_recvmsg net/socket.c:2651 [inline] __se_sys_recvmsg net/socket.c:2648 [inline] __x64_sys_recvmsg+0x42/0x50 net/socket.c:2648 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: 0 PID: 5731 Comm: syz-executor.4 Not tainted 5.12.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================