[PATCH 3/5] exec: Remove recursion from search_binary_handler

[Tetsuo Handa]

On 2020/05/10 4:41, Eric W. Biederman wrote:
> --- a/fs/binfmt_misc.c
> +++ b/fs/binfmt_misc.c
> @@ -234,10 +234,7 @@ static int load_misc_binary(struct linux_binprm *bprm)
>  	if (retval < 0)
>  		goto error;
>  
> -	retval = search_binary_handler(bprm);
> -	if (retval < 0)
> -		goto error;
> -
> +	retval = 1; /* Search for the interpreter */
>  ret:
>  	dput(fmt->dentry);
>  	return retval;

Wouldn't this change cause

	if (fd_binary > 0)
		ksys_close(fd_binary);
	bprm->interp_flags = 0;
	bprm->interp_data = 0;

not to be called when "Search for the interpreter" failed?