================================================================== BUG: KCSAN: data-race in do_group_exit / do_group_exit write to 0xffff88803c9a2df4 of 4 bytes by task 32715 on cpu 0: do_group_exit+0x130/0x170 kernel/exit.c:914 __do_sys_exit_group+0xb/0x10 kernel/exit.c:931 __se_sys_exit_group+0x5/0x10 kernel/exit.c:929 __x64_sys_exit_group+0x16/0x20 kernel/exit.c:929 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 read to 0xffff88803c9a2df4 of 4 bytes by task 32714 on cpu 1: signal_group_exit include/linux/sched/signal.h:269 [inline] do_group_exit+0x50/0x170 kernel/exit.c:903 __do_sys_exit_group+0xb/0x10 kernel/exit.c:931 __se_sys_exit_group+0x5/0x10 kernel/exit.c:929 __x64_sys_exit_group+0x16/0x20 kernel/exit.c:929 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: 1 PID: 32714 Comm: syz-executor.3 Not tainted 5.10.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================