Re: CVE-2014-9900 fix is not upstream

[Lennart Sorensen]

On Tue, Aug 23, 2016 at 10:25:45PM +0100, Al Viro wrote:
> Sadly, sizeof is what we use when copying that sucker to userland.  So these
> padding bits in the end would've leaked, true enough, and the case is somewhat
> weaker.  And any normal architecture will have those, but then any such
> architecture will have no more trouble zeroing a 32bit value than 16bit one.

Hmm, good point.  Too bad I don't see a compiler option of "zero all
padding in structs".  Certainly generating the code should not really
be that different.

I see someone did request it 2 years ago:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63479

-- 
Len Sorensen