fixed UNKNOWN READ

Reported by OSS-Fuzz https://oss-fuzz.com/testcase-detail/5681169970757632
2019-11-03 04:45:28 +01:00 · 2019-11-03 04:45:28 +01:00 · c3f23b836e
parent 6263afbe43
commit c3f23b836e
1 changed files with 1 additions and 1 deletions
--- a/src/libopensc/card-setcos.c
+++ b/src/libopensc/card-setcos.c
@ -868,7 +868,7 @@ static void parse_sec_attr_44(sc_file_t *file, const u8 *buf, size_t len)
 			}

 			/* Encryption key present ? */
-			iPinCount = iACLen - 1;		
+			iPinCount = iACLen > 0 ? iACLen - 1 : 0;

 			if (buf[iOffset] & 0x20) {
 				int iSC;