COMPAT_SYSCALL_DEFINE5(execveat, int, fd,
		       const char __user *, filename,
		       const compat_uptr_t __user *, argv,
		       const compat_uptr_t __user *, envp,
		       int,  flags)
{
	int lookup_flags = (flags & AT_EMPTY_PATH) ? LOOKUP_EMPTY : 0;

	return compat_do_execveat(fd,
				  getname_flags(filename, lookup_flags, NULL),
				  argv, envp, flags);
}

The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.