================================================================== BUG: KCSAN: data-race in sock_alloc_send_pskb / unix_shutdown read-write to 0xffff888101ff59a2 of 1 bytes by task 32093 on cpu 0: unix_shutdown+0x6d/0x380 net/unix/af_unix.c:2968 __sys_shutdown_sock net/socket.c:2326 [inline] __sys_shutdown net/socket.c:2338 [inline] __do_sys_shutdown net/socket.c:2346 [inline] __se_sys_shutdown+0xf6/0x140 net/socket.c:2344 __x64_sys_shutdown+0x2d/0x40 net/socket.c:2344 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+0x46/0xb0 read to 0xffff888101ff59a2 of 1 bytes by task 32092 on cpu 1: sock_alloc_send_pskb+0x113/0x4f0 net/core/sock.c:2647 unix_stream_sendmsg+0x3a5/0xaa0 net/unix/af_unix.c:2151 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0x75/0xa0 net/socket.c:734 io_send fs/io_uring.c:6195 [inline] io_issue_sqe+0x3549/0xaab0 fs/io_uring.c:8357 io_queue_sqe fs/io_uring.c:8718 [inline] io_submit_sqe+0x2dff/0x3f20 fs/io_uring.c:8982 io_submit_sqes+0x27b/0x500 fs/io_uring.c:9093 __do_sys_io_uring_enter fs/io_uring.c:12040 [inline] __se_sys_io_uring_enter+0x24b/0xd60 fs/io_uring.c:11966 __x64_sys_io_uring_enter+0x74/0x80 fs/io_uring.c:11966 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+0x46/0xb0 value changed: 0x00 -> 0x01 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 32092 Comm: syz-executor.3 Not tainted 5.19.0-rc4-syzkaller-00208-g69cb6c6556ad-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 ==================================================================