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authorKees Cook <keescook@chromium.org>2013-07-04 02:01:14 +0400
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-04 03:07:25 +0400
commitffc8b30866879ed9ba62bd0a86fecdbd51cd3d19 (patch)
tree21fdc09c7011ed9a1b85e98f7718a58a2c903d32 /drivers/scsi/osd
parent542db01579fbb7ea7d1f7bb9ddcef1559df660b2 (diff)
downloadlinux-ffc8b30866879ed9ba62bd0a86fecdbd51cd3d19.tar.xz
block: do not pass disk names as format strings
Disk names may contain arbitrary strings, so they must not be interpreted as format strings. It seems that only md allows arbitrary strings to be used for disk names, but this could allow for a local memory corruption from uid 0 into ring 0. CVE-2013-2851 Signed-off-by: Kees Cook <keescook@chromium.org> Cc: Jens Axboe <axboe@kernel.dk> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/scsi/osd')
-rw-r--r--drivers/scsi/osd/osd_uld.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/scsi/osd/osd_uld.c b/drivers/scsi/osd/osd_uld.c
index 0fab6b5c7b82..9d86947d67fe 100644
--- a/drivers/scsi/osd/osd_uld.c
+++ b/drivers/scsi/osd/osd_uld.c
@@ -485,7 +485,7 @@ static int osd_probe(struct device *dev)
oud->class_dev.class = &osd_uld_class;
oud->class_dev.parent = dev;
oud->class_dev.release = __remove;
- error = dev_set_name(&oud->class_dev, disk->disk_name);
+ error = dev_set_name(&oud->class_dev, "%s", disk->disk_name);
if (error) {
OSD_ERR("dev_set_name failed => %d\n", error);
goto err_put_cdev;