include/strutils: fix heap-buffer-overflow in normalize_whitespace()

Signed-off-by: Karel Zak <kzak@redhat.com>
2021-06-14 16:29:21 +02:00 · 2021-06-14 16:29:21 +02:00 · bef5ab005e
parent fce7b9501c
commit bef5ab005e
1 changed files with 1 additions and 1 deletions
--- a/include/strutils.h
+++ b/include/strutils.h
@ -334,7 +334,7 @@ static inline size_t normalize_whitespace(unsigned char *str)
 		else
 			str[x++] = str[i++];
 	}
-	if (nsp)		/* tailing space */
+	if (nsp && x > 0)	/* tailing space */
 		x--;
 	str[x] = '\0';
 	return x;