Date: Tue, 27 Apr 2010 20:09:26 -0400 (EDT) From: Josh Bressers <bressers@...hat.com> To: oss-security@...ts.openwall.com Cc: coley@...us.mitre.org Subject: Re: CVE request - gfs2 kernel issue Please use CVE-2010-1436 Thanks. -- JB ----- "Eugene Teo" <eugene@...hat.com> wrote: > When a struct gfs2_quota straddles a page boundary, the two pages > required to write out the complete quota were not being updated. > Instead, the first page was being written beyond its end. This buffer > > overflow can cause a kernel panic. Since only the value field in > struct > gfs2_quota needs to be updated and it's a 64-bit quantity that doesn't > > ever straddle a page boundary by itself, we can seek to the proper > page > where this value lies and write to it. > > Steps to reproduce: > https://bugzilla.redhat.com/show_bug.cgi?id=586006 > > My colleague will be posting the patch for the upstream kernel soon. > > Thanks, eugene
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