================================================================== BUG: KCSAN: data-race in fasync_remove_entry / sock_wake_async write to 0xffff88814c864958 of 8 bytes by task 9083 on cpu 1: fasync_remove_entry+0xd5/0x130 fs/fcntl.c:877 fasync_helper+0x92/0xc0 fs/fcntl.c:976 sock_fasync+0x5c/0xc0 net/socket.c:1390 __fput+0x532/0x570 fs/file_table.c:317 ____fput+0x11/0x20 fs/file_table.c:348 task_work_run+0xde/0x110 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0x124/0x130 kernel/entry/common.c:171 exit_to_user_mode_prepare kernel/entry/common.c:203 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x6a/0x90 kernel/entry/common.c:296 do_syscall_64+0x37/0x70 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd read to 0xffff88814c864958 of 8 bytes by task 9080 on cpu 0: sock_wake_async+0x26/0x100 net/socket.c:1405 sk_wake_async include/net/sock.h:2517 [inline] unix_release_sock+0x49d/0x7b0 net/unix/af_unix.c:635 unix_release+0x4e/0x70 net/unix/af_unix.c:1041 __sock_release net/socket.c:650 [inline] sock_close+0x6c/0x150 net/socket.c:1365 __fput+0x245/0x570 fs/file_table.c:320 ____fput+0x11/0x20 fs/file_table.c:348 task_work_run+0xde/0x110 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0x124/0x130 kernel/entry/common.c:171 exit_to_user_mode_prepare kernel/entry/common.c:203 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:285 [inline] syscall_exit_to_user_mode+0x6a/0x90 kernel/entry/common.c:296 do_syscall_64+0x37/0x70 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x63/0xcd value changed: 0xffff8881498e2330 -> 0x0000000000000000 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 9080 Comm: syz-executor.5 Not tainted 6.1.0-rc1-syzkaller-00427-gd47136c28015-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/11/2022 ==================================================================