================================================================== BUG: KCSAN: data-race in netlink_recvmsg / netlink_recvmsg read to 0xffff88810605a320 of 8 bytes by task 23917 on cpu 0: netlink_recvmsg+0xf3/0x910 net/netlink/af_netlink.c:1964 sock_recvmsg_nosec net/socket.c:871 [inline] sock_recvmsg net/socket.c:889 [inline] sock_recvmsg+0x92/0xb0 net/socket.c:885 ___sys_recvmsg+0x1a0/0x3e0 net/socket.c:2480 __sys_recvmsg+0x9d/0x160 net/socket.c:2537 __do_sys_recvmsg net/socket.c:2547 [inline] __se_sys_recvmsg net/socket.c:2544 [inline] __x64_sys_recvmsg+0x51/0x70 net/socket.c:2544 do_syscall_64+0xcc/0x370 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 write to 0xffff88810605a320 of 8 bytes by task 23915 on cpu 1: netlink_recvmsg+0x124/0x910 net/netlink/af_netlink.c:1965 sock_recvmsg_nosec+0x5c/0x70 net/socket.c:871 ___sys_recvmsg+0x1a0/0x3e0 net/socket.c:2480 do_recvmmsg+0x19a/0x5c0 net/socket.c:2601 __sys_recvmmsg+0x1ef/0x200 net/socket.c:2680 __do_sys_recvmmsg net/socket.c:2703 [inline] __se_sys_recvmmsg net/socket.c:2696 [inline] __x64_sys_recvmmsg+0x89/0xb0 net/socket.c:2696 do_syscall_64+0xcc/0x370 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 23915 Comm: syz-executor.0 Not tainted 5.4.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================