================================================================== BUG: KCSAN: data-race in do_exit / do_exit write to 0xffffffff85a4f880 of 4 bytes by task 6579 on cpu 1: check_stack_usage kernel/exit.c:728 [inline] do_exit+0x1177/0x1720 kernel/exit.c:839 do_group_exit+0xa5/0x160 kernel/exit.c:925 get_signal+0xf54/0x1020 kernel/signal.c:2864 arch_do_signal_or_restart+0x87/0x2d0 arch/x86/kernel/signal.c:867 exit_to_user_mode_loop+0x78/0x130 kernel/entry/common.c:166 exit_to_user_mode_prepare kernel/entry/common.c:201 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline] syscall_exit_to_user_mode+0x6a/0x90 kernel/entry/common.c:294 do_syscall_64+0x37/0x70 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffffffff85a4f880 of 4 bytes by task 6585 on cpu 0: check_stack_usage kernel/exit.c:721 [inline] do_exit+0x10e7/0x1720 kernel/exit.c:839 do_group_exit+0xa5/0x160 kernel/exit.c:925 get_signal+0xf54/0x1020 kernel/signal.c:2864 arch_do_signal_or_restart+0x87/0x2d0 arch/x86/kernel/signal.c:867 exit_to_user_mode_loop+0x78/0x130 kernel/entry/common.c:166 exit_to_user_mode_prepare kernel/entry/common.c:201 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline] syscall_exit_to_user_mode+0x6a/0x90 kernel/entry/common.c:294 do_syscall_64+0x37/0x70 arch/x86/entry/common.c:86 entry_SYSCALL_64_after_hwframe+0x44/0xae value changed: 0x000029e0 -> 0x000026a8 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 6585 Comm: syz-executor.1 Not tainted 5.18.0-rc4-syzkaller-00396-g57ae8a492116-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================