On Wed, Aug 15, 2012 at 6:26 PM, Alexander Viro <aviro(a)redhat.com> wrote:
On Wed, Aug 15, 2012 at 06:13:33PM -0700, Peter Moody wrote:
> On certain systems, in certain pathalogical cases, current's cwd can
> be deleted while we're still processing a syscall. This should prevent
> the system from evicting the inode while we're still referencing it.
>
> This seems to fix the bug I reported here:
>
https://www.redhat.com/archives/linux-audit/2012-August/msg00017.html
Sigh... The bug is real, but I really don't like the fix. Among other
things, it's going to cause cacheline bouncing from hell and not everyone
runs with audit sensibly disabled... Let me think for a while and see
if I can come up with something less unpleasant, OK?
Works for me. I have a set of machines that I can very easily test a fix on.
Cheers,
peter
--
Peter Moody Google 1.650.253.7306
Security Engineer pgp:0xC3410038