In case kernel stack variable is not initialized properly,
there is a risk of kernel information disclosure.
So, initialize 'char label[]' array with null characters.
Signed-off-by: Austin Kim <austindh.kim@xxxxxxxxx>
---
fs/xfs/xfs_ioctl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 9ea5166..09b3bee 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -2037,7 +2037,7 @@ xfs_ioc_setlabel(
char __user *newlabel)
{
struct xfs_sb *sbp = &mp->m_sb;
- char label[XFSLABEL_MAX + 1];
+ char label[XFSLABEL_MAX + 1] = {0};
size_t len;
int error;
--
2.6.2
