oss-security - Re: CVE request: kernel: xfs: XFS_IOC

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Message-ID: <921413806.1618741283888013706.JavaMail.root@zmail01.collab.prod.int.phx2.redhat.com>
Date: Tue, 7 Sep 2010 15:33:33 -0400 (EDT)
From: Josh Bressers <bressers@...hat.com>
To: oss-security@...ts.openwall.com
Cc: "Steven M. Christey" <coley@...us.mitre.org>
Subject: Re: CVE request: kernel: xfs: XFS_IOC_FSGETXATTR
 ioctl memory leak

Please use CVE-2010-3078

Thanks.

-- 
    JB

----- "Eugene Teo" <eugene@...hat.com> wrote:

> From Dan Rosenberg, "the XFS_IOC_FSGETXATTR ioctl allows unprivileged
> 
> users to read 12 bytes of uninitialized stack memory, because the 
> fsxattr struct declared on the stack in xfs_ioc_fsgetxattr() does not
> 
> alter (or zero) the 12-byte fsx_pad member before copying it back to
> the 
> user."
> 
> http://www.linux.sgi.com/archives/xfs-masters/2010-09/msg00002.html
> https://bugzilla.redhat.com/show_bug.cgi?id=630804
> 
> Thanks, Eugene
> -- 
> main(i) { putchar(182623909 >> (i-1) * 5&31|!!(i<7)<<6) && main(++i);
> }

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