On 64 bit systems the agp_info struct has a hole between ->agp_mode and
->aper_base. We need to clear it to avoid leaking stack information to
userspace.
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
diff --git a/drivers/char/agp/frontend.c b/drivers/char/agp/frontend.c
index 2e04433..3fbce33 100644
--- a/drivers/char/agp/frontend.c
+++ b/drivers/char/agp/frontend.c
@@ -729,6 +729,7 @@ static int agpioc_info_wrap(struct agp_file_private *priv,
void __user *arg)
agp_copy_info(agp_bridge, &kerninfo);
+ memset(&userinfo, 0, sizeof(userinfo));
userinfo.version.major = kerninfo.version.major;
userinfo.version.minor = kerninfo.version.minor;
userinfo.bridge_id = kerninfo.device->vendor |
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
