Re: CVE request - kernel: btrfs: prevent users from setting ACLs on files they do not own

[Eugene Teo <eugeneteo () kernel sg>]

On 06/14/2010 09:42 AM, Eugene Teo wrote:
> On 06/12/2010 04:32 AM, Dan Rosenberg wrote:
> > Shi Weihua discovered that btrfs did not check ownership of files
> > before setting ACLs, allowing any user to set ACLs for any file,
> > completely bypassing all file permissions. This wasn't reported as a
> > security issue, but it seems pretty serious to me (for those who use
> > btrfs). See http://lkml.org/lkml/2010/5/17/544 for his original post.
>
> Thanks, please use CVE-2010-2071.

Upstream commit: http://git.kernel.org/linus/2f26afba

Eugene
--
main(i) { putchar(182623909 >> (i-1) * 5&31|!!(i<7)<<6) && main(++i); }