Description

The xfs_fs_geometry function in fs/xfs/xfs_fsops.c in the Linux kernel before 2.6.38-rc6-git3 does not initialize a certain structure member, which allows local users to obtain potentially sensitive information from kernel stack memory via an FSGEOMETRY_V1 ioctl call.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=3a3675b7f23f83ca8c67c9c2b6edf707fd28d1ba

http://openwall.com/lists/oss-security/2011/02/16/10

http://openwall.com/lists/oss-security/2011/02/16/4

http://osvdb.org/70950

http://rhn.redhat.com/errata/RHSA-2011-0927.html

http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.38-rc6-git3.log

http://www.securityfocus.com/bid/46417

https://bugzilla.redhat.com/show_bug.cgi?id=677260

https://patchwork.kernel.org/patch/555461/

Details

Risk Information

CVSS v2