================================================================== BUG: KCSAN: data-race in do_coredump / do_group_exit write to 0xffff88810a96fbe8 of 8 bytes by task 26612 on cpu 0: zap_threads fs/coredump.c:381 [inline] coredump_wait fs/coredump.c:461 [inline] do_coredump+0x323/0x1ce0 fs/coredump.c:628 get_signal+0xf64/0x1510 kernel/signal.c:2752 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 0xffff88810a96fbe8 of 8 bytes by task 26605 on cpu 1: signal_group_exit include/linux/sched/signal.h:269 [inline] do_group_exit+0x71/0x170 kernel/exit.c:886 __do_sys_exit_group+0xb/0x10 kernel/exit.c:914 __se_sys_exit_group+0x5/0x10 kernel/exit.c:912 __x64_sys_exit_group+0x16/0x20 kernel/exit.c:912 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: 26605 Comm: syz-executor.1 Not tainted 5.10.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================