| commit | d03f918ab9036cc71740c0aa796c8e02e6f6f6d3 | [log] [tgz] |
|---|---|---|
| author | Stefan Behrens <sbehrens@giantdisaster.de> | Mon Nov 05 13:10:49 2012 +0000 |
| committer | Josef Bacik <jbacik@fusionio.com> | Wed Dec 12 17:15:26 2012 -0500 |
| tree | ff6c9ec2d42a9d5e54c640a1ff88f0a8dc4404cf | |
| parent | 109f2365f1928af241b2ccbd0f6ba0b93d911288 [diff] |
Btrfs: Don't trust the superblock label and simply printk("%s") it
Someone who is root or capable(CAP_SYS_ADMIN) could corrupt the
superblock and make Btrfs printk("%s") crash while holding the
uuid_mutex since nobody forces a limit on the string. Since the
uuid_mutex is significant, the system would be unusable
afterwards.
Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>