From 62049ea18c622fe96bcbe3664f1b3f5f95f878cc Mon Sep 17 00:00:00 2001
From: Jakub Jelen <jjelen@redhat.com>
Date: Wed, 16 Oct 2019 11:05:14 +0200
Subject: [PATCH] Avoid memory leaks from file selection

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=17106
---
 src/libopensc/card-mcrd.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/libopensc/card-mcrd.c b/src/libopensc/card-mcrd.c
index 7a443c08..bcd9869b 100644
--- a/src/libopensc/card-mcrd.c
+++ b/src/libopensc/card-mcrd.c
@@ -836,6 +836,9 @@ select_file_by_path(sc_card_t * card, unsigned short *pathptr,
 			priv->curpathlen--;
 			priv->is_ef = 0;
 		}
+		/* Free the previously allocated file so we do not leak memory here */
+		sc_file_free(*file);
+		*file = NULL;
 		r = select_down(card, pathptr, pathlen, 0, file);
 	}
 	return r;