================================================================== BUG: KCSAN: data-race in copy_process / get_task_exe_file write to 0xffff88812ddd70ac of 4 bytes by task 24988 on cpu 0: copy_process+0x608/0x2e00 kernel/fork.c:1993 kernel_clone+0x14b/0x680 kernel/fork.c:2510 __do_sys_clone kernel/fork.c:2627 [inline] __se_sys_clone kernel/fork.c:2611 [inline] __x64_sys_clone+0xb4/0xe0 kernel/fork.c:2611 do_syscall_64+0x4a/0x90 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff88812ddd70ac of 4 bytes by task 25076 on cpu 1: get_task_exe_file+0x44/0x140 kernel/fork.c:1202 proc_exe_link+0x44/0x100 fs/proc/base.c:1725 proc_pid_get_link+0x50/0xb0 fs/proc/base.c:1750 pick_link fs/namei.c:1736 [inline] step_into+0x974/0xec0 fs/namei.c:1798 open_last_lookups fs/namei.c:3308 [inline] path_openat+0xfc8/0x20b0 fs/namei.c:3491 do_filp_open+0xd9/0x1f0 fs/namei.c:3521 do_sys_openat2+0xa3/0x250 fs/open.c:1187 do_sys_open fs/open.c:1203 [inline] __do_sys_openat fs/open.c:1219 [inline] __se_sys_openat fs/open.c:1214 [inline] __x64_sys_openat+0xef/0x110 fs/open.c:1214 do_syscall_64+0x4a/0x90 arch/x86/entry/common.c:47 entry_SYSCALL_64_after_hwframe+0x44/0xae Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 25076 Comm: syz-executor.4 Not tainted 5.12.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================