================================================================== BUG: KCSAN: data-race in rawv6_sendmsg / sock_setsockopt write to 0xffff888139b528a8 of 2 bytes by task 19424 on cpu 1: sock_setsockopt+0x1ce8/0x1ef0 net/core/sock.c:1023 __sys_setsockopt+0x326/0x450 net/socket.c:2128 __do_sys_setsockopt net/socket.c:2143 [inline] __se_sys_setsockopt net/socket.c:2140 [inline] __x64_sys_setsockopt+0x62/0x70 net/socket.c:2140 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff888139b528a8 of 2 bytes by task 19453 on cpu 0: rawv6_sendmsg+0x1be/0x1320 net/ipv6/raw.c:812 inet_sendmsg+0x5f/0x80 net/ipv4/af_inet.c:817 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg net/socket.c:671 [inline] ____sys_sendmsg+0x352/0x4c0 net/socket.c:2353 ___sys_sendmsg net/socket.c:2407 [inline] __sys_sendmmsg+0x335/0x4b0 net/socket.c:2497 __do_sys_sendmmsg net/socket.c:2526 [inline] __se_sys_sendmmsg net/socket.c:2523 [inline] __x64_sys_sendmmsg+0x53/0x60 net/socket.c:2523 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 19453 Comm: syz-executor.4 Not tainted 5.10.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================