Fix potential out-of-bounds read

15 years ago · e804725e75
parent ec11480d8b
commit e804725e75
1 changed files with 1 additions and 1 deletions
--- a/bitncmp.c
+++ b/bitncmp.c
@ -41,7 +41,7 @@ ares_bitncmp(const void *l, const void *r, int n) {

 	b = n / 8;
 	x = memcmp(l, r, b);
-	if (x)
+	if (x || (n % 8) == 0)
 		return (x);

 	lb = ((const unsigned char *)l)[b];