Bluetooth: cmtp: fix information leak to userland

Structure cmtp_conninfo is copied to userland with some padding fields unitialized. It leads to leaking of contents of kernel stack memory. Signed-off-by: Vasiliy Kulikov <[email protected]> Acked-by: Marcel Holtmann <[email protected]> Signed-off-by: Gustavo F. Padovan <[email protected]>
realfirst · Dec 1, 2010 · 3185fbd · 3185fbd
1 parent 5520d20
commit 3185fbd
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/net/bluetooth/cmtp/core.c b/net/bluetooth/cmtp/core.c
@@ -78,6 +78,7 @@ static void __cmtp_unlink_session(struct cmtp_session *session)
 
 static void __cmtp_copy_session(struct cmtp_session *session, struct cmtp_conninfo *ci)
 {
+	memset(ci, 0, sizeof(*ci));
 	bacpy(&ci->bdaddr, &session->bdaddr);
 
 	ci->flags = session->flags;