Clear the 'unused' field and the uninitialized padding in 'lksb' to
avoid leaking memory to userland in copy_result_to_user().
Signed-off-by: Vlad Tsyrklevich <v...@tsyrklevich.net>
---
fs/dlm/user.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/fs/dlm/user.c b/fs/dlm/user.c
index 1ce908c..83ddd47 100644
--- a/fs/dlm/user.c
+++ b/fs/dlm/user.c
@@ -122,6 +122,8 @@ static void compat_input(struct dlm_write_request *kb,
static void compat_output(struct dlm_lock_result *res,
struct dlm_lock_result32 *res32)
{
+ memset(res32, 0, sizeof(*res32));
+
res32->version[0] = res->version[0];
res32->version[1] = res->version[1];
res32->version[2] = res->version[2];
--
2.7.0
