Fix #5847: Missing length check to trace smartcard buffers.

2020-02-10 14:28:38 +01:00 · 2020-02-10 14:28:38 +01:00 · 11d3ea3b43
parent 245fc6014d
commit 11d3ea3b43
1 changed files with 3 additions and 0 deletions
--- a/channels/smartcard/client/smartcard_pack.c
+++ b/channels/smartcard/client/smartcard_pack.c
@ -125,6 +125,9 @@ static char* smartcard_convert_string_list(const void* in, size_t bytes, BOOL un

 	string.pv = in;

+	if (bytes < 1)
+		return NULL;
+
 	if (unicode)
 	{
 		length = (bytes / 2);