Format specifier issue when building kernel

Richard Guy Briggs rgb at redhat.com
Tue Oct 29 01:35:41 UTC 2013


On Mon, Oct 28, 2013 at 04:31:30PM -0700, William Roberts wrote:
> On Mon, Oct 28, 2013 at 4:30 PM, William Roberts
> <bill.c.roberts at gmail.com>wrote:
> 
> > I've been working off of Richard Guy Brigs git repo on branch
> > audit-for-next prepping my patch and I noticed a build warning:
> >
> > kernel/audit.c:832:8: warning: format ‘%A’ expects argument of type
> > ‘double’, but argument 3 has type ‘char *’ [-Wformat]
> >
> > Looking at the code, it looks wrong:
> >
> >                                 audit_log_format(ab,
>                                                  "
> msg='%.AUDIT_MESSAGE_TEXT_MAXs'",
>                                                  (char *)data);
> 
> The issue appears on the % specifier in there, it picks it up as %.A, which
> is of type double. Is this what was intended?

Hmmm, that should have picked up a macro from 06051fbe in
audit-for-next.  It should be pre-processed to "%.8560s".

> William C Roberts


- RGB

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Richard Guy Briggs <rbriggs at redhat.com>
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Kernel Security
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