================================================================== BUG: KCSAN: data-race in copy_process / get_task_exe_file write to 0xffff888031a6e02c of 4 bytes by task 14602 on cpu 0: copy_process+0x5fd/0x2e50 kernel/fork.c:1981 kernel_clone+0x14b/0x690 kernel/fork.c:2500 __do_sys_clone kernel/fork.c:2617 [inline] __se_sys_clone kernel/fork.c:2601 [inline] __x64_sys_clone+0xb4/0xe0 kernel/fork.c:2601 do_syscall_64+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae read to 0xffff888031a6e02c of 4 bytes by task 14606 on cpu 1: get_task_exe_file+0x44/0x120 kernel/fork.c:1196 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:1733 [inline] step_into+0x974/0xec0 fs/namei.c:1795 open_last_lookups fs/namei.c:3312 [inline] path_openat+0x105e/0x21b0 fs/namei.c:3495 do_filp_open+0xbd/0x1d0 fs/namei.c:3525 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+0x39/0x80 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xae Reported by Kernel Concurrency Sanitizer on: CPU: 1 PID: 14606 Comm: syz-executor.4 Not tainted 5.12.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================