Re: CVE request - kernel: xfs infoleak

[Josh Bressers <bressers () redhat com>]

----- Original Message -----
> From Dan R0s3nbug5, "The FSGEOMETRY_V1 ioctl (and its compat equivalent)
> calls out to xfs_fs_geometry() with a version number of 3.  This code
> path does not fill in the logsunit member of the passed xfs_fsop_geom_t,
> leading to the leaking of four bytes of uninitialized stack data to
> potentially unprivileged callers. Since all other members are filled in
> all code paths and there are no padding bytes in this structure, it's
> safe to avoid an expensive memset() in favor of just clearing this one
> field."
>
> https://patchwork.kernel.org/patch/555461/
> https://bugzilla.redhat.com/show_bug.cgi?id=677260

Please use CVE-2011-0711.

Thanks.

-- 
    JB