linux-kernel - Re: [PATCH] scripts: headers_install: Exit with error on config leak

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Date:   Sat, 2 May 2020 20:27:54 -0700
From:   Siddharth Gupta <sidgup@...eaurora.org>
To:     Masahiro Yamada <masahiroy@...nel.org>
Cc:     Sam Ravnborg <sam@...nborg.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] scripts: headers_install: Exit with error on config leak

Sure I will make the recommended changes and send a v2 of the patch.

Thanks,
Siddharth

On 5/2/2020 8:03 AM, Masahiro Yamada wrote:
> On Sat, May 2, 2020 at 6:55 AM Siddharth Gupta <sidgup@...eaurora.org> wrote:
>> Misuse of CONFIG_* in UAPI headers should result in an error as it exposes
>> configuration of different targets to userspace.
>>
>> Signed-off-by: Siddharth Gupta <sidgup@...eaurora.org>
>> ---
>>   scripts/headers_install.sh | 3 ++-
>>   1 file changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/scripts/headers_install.sh b/scripts/headers_install.sh
>> index a07668a..bd6c93a 100755
>> --- a/scripts/headers_install.sh
>> +++ b/scripts/headers_install.sh
>> @@ -109,7 +109,8 @@ do
>>          done
>>
>>          if [ "$warn" = 1 ]; then
>> -               echo "warning: $INFILE: leak $c to user-space" >&2
>> +               echo "error: $INFILE: leak $c to user-space" >&2
>> +               exit 1
>>          fi
>>   done
>
> If you want to change this,
> please update the comment at line 67.
>
> Also, rename the variable $warn to
> something else, $error or $leak_error, etc. ?
>
>
>