better hdr_valid() check, fixes out-of-bounds table access found by afl

lieff committed 8 years ago

Commit 0da45b11 parent 91080871 file · +1 −0Browse files

Unified · Split

minimp3.h+1−0

@@ -266,6 +266,7 @@ static int hdr_valid(const uint8_t *h) · 265 unmodified lines
266	{	266	{
267	return h[0] == 0xff &&	267	return h[0] == 0xff &&
268	((h[1] & 0xF0) == 0xf0 \|\| (h[1] & 0xFE) == 0xe2) &&	268	((h[1] & 0xF0) == 0xf0 \|\| (h[1] & 0xFE) == 0xe2) &&
		269	(HDR_GET_LAYER(h) != 0) &&
269	(HDR_GET_BITRATE(h) != 15) &&	270	(HDR_GET_BITRATE(h) != 15) &&
270	(HDR_GET_SAMPLE_RATE(h) != 3);	271	(HDR_GET_SAMPLE_RATE(h) != 3);
271	}	272	}