================================================================== BUG: KCSAN: data-race in kernel_clone / mm_release write to 0xffff88812e996dd0 of 8 bytes by task 27464 on cpu 0: wait_for_vfork_done kernel/fork.c:1360 [inline] kernel_clone+0x361/0x6a0 kernel/fork.c:2596 __do_sys_clone3 kernel/fork.c:2840 [inline] __se_sys_clone3+0x1b5/0x1f0 kernel/fork.c:2824 __x64_sys_clone3+0x2d/0x40 kernel/fork.c:2824 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff88812e996dd0 of 8 bytes by task 27465 on cpu 1: mm_release+0x125/0x1b0 kernel/fork.c:1410 exit_mm_release+0x21/0x30 kernel/fork.c:1417 exit_mm+0x38/0x170 kernel/exit.c:479 do_exit+0x569/0x16a0 kernel/exit.c:793 do_group_exit+0xa5/0x160 kernel/exit.c:935 get_signal+0x8cf/0x15b0 kernel/signal.c:2863 arch_do_signal_or_restart+0x8c/0x2e0 arch/x86/kernel/signal.c:868 handle_signal_work kernel/entry/common.c:148 [inline] exit_to_user_mode_loop kernel/entry/common.c:172 [inline] exit_to_user_mode_prepare+0x113/0x190 kernel/entry/common.c:207 __syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline] syscall_exit_to_user_mode+0x20/0x40 kernel/entry/common.c:300 ret_from_fork+0x15/0x30 value changed: 0xffffc9000187bd70 -> 0x0000000000000000 Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 27465 Comm: syz-executor.5 Not tainted 5.17.0-rc6-syzkaller-00184-g38f80f42147f-dirty #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================