================================================================== BUG: KCSAN: data-race in do_notify_parent_cldstop / do_signal_stop write to 0xffff888101288ae0 of 4 bytes by task 16389 on cpu 0: do_signal_stop+0x100/0x6b0 kernel/signal.c:2340 get_signal+0xa83/0x1510 kernel/signal.c:2718 arch_do_signal+0x25/0x260 arch/x86/kernel/signal.c:811 exit_to_user_mode_loop kernel/entry/common.c:161 [inline] exit_to_user_mode_prepare+0xde/0x170 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x16/0x30 kernel/entry/common.c:266 do_syscall_64+0x45/0x80 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff888101288ae0 of 4 bytes by task 16371 on cpu 1: do_notify_parent_cldstop+0x1a1/0x290 kernel/signal.c:2055 get_signal+0x44c/0x1510 kernel/signal.c:2592 arch_do_signal+0x25/0x260 arch/x86/kernel/signal.c:811 exit_to_user_mode_loop kernel/entry/common.c:161 [inline] exit_to_user_mode_prepare+0xde/0x170 kernel/entry/common.c:191 syscall_exit_to_user_mode+0x16/0x30 kernel/entry/common.c:266 do_syscall_64+0x45/0x80 arch/x86/entry/common.c:56 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 16371 Comm: syz-executor.1 Not tainted 5.10.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================