Comments

Author: Girgias

ext/mbstring/libmbfl/mbfl/mbfilter.c

@@ -881,6 +881,7 @@ mbfl_strpos(
 		goto out;
 	}
 
+	/* Bug somewhere in this segment for Out Of Bound detection (normal mode i.e. !reverse with negative offsets) */
 	if (!reverse) {
 		size_t jtbl[1 << (sizeof(unsigned char) * 8)];
 		size_t needle_u8_len = needle_u8->len;
@@ -897,6 +898,7 @@ mbfl_strpos(
 		e = haystack_u8_val + haystack_u8->len;
 		p = haystack_u8_val;
 		while (offset-- > 0) {
+			/* If positive offset is larger than the number of code points in the string */
 			if (p >= e) {
 				result = (size_t) -16;
 				goto out;