linux-kernel - Re: [PATCH v2] fortify: Use WARN instead of BUG for now

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Date:   Wed, 26 Jul 2017 14:33:20 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Josh Poimboeuf <jpoimboe@...hat.com>
Cc:     Andrew Morton <akpm@...ux-foundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Daniel Micay <danielmicay@...il.com>,
        Dan Williams <dan.j.williams@...el.com>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Al Viro <viro@...iv.linux.org.uk>,
        David Howells <dhowells@...hat.com>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2] fortify: Use WARN instead of BUG for now

On Wed, Jul 26, 2017 at 12:55 PM, Josh Poimboeuf <jpoimboe@...hat.com> wrote:
> On Wed, Jul 26, 2017 at 11:52:19AM -0700, Kees Cook wrote:
>> --- a/tools/objtool/check.c
>> +++ b/tools/objtool/check.c
>> @@ -156,7 +156,7 @@ static int __dead_end_function(struct objtool_file *file, struct symbol *func,
>>               "kvm_spurious_fault",
>>               "__reiserfs_panic",
>>               "lbug_with_loc",
>> -             "fortify_panic",
>> +             "fortify_overflow",
>>       };
>
> If the function is no longer '__noreturn' then this entry needs to be
> removed from the global_noreturns list.

Ah, dur, yes. Thanks! I see akpm has already merged this correction for -mm.

Thanks!

-Kees

-- 
Kees Cook
Pixel Security