fixed #1838

gpac · Jul 5, 2021 · 8281884 · 8281884
1 parent 27742ac
commit 8281884
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/ietf/rtp_pck_mpeg12.c b/src/ietf/rtp_pck_mpeg12.c
@@ -123,6 +123,7 @@ GF_Err gp_rtp_builder_do_mpeg12_video(GP_RTPPacketizer *builder, u8 *data, u32 d
 
 	/*no flsuh (no aggregation)*/
 	if (!data) return GF_OK;
+	if (data_size<4) return GF_NON_COMPLIANT_BITSTREAM;
 
 	offset = 0;
 	have_seq = GF_FALSE;
@@ -152,6 +153,7 @@ GF_Err gp_rtp_builder_do_mpeg12_video(GP_RTPPacketizer *builder, u8 *data, u32 d
 	mpv_hdr[3] = 0;
 
 	if ((pic_type==2) || (pic_type== 3)) {
+		if (data_size<5) return GF_NON_COMPLIANT_BITSTREAM;
 		mpv_hdr[3] = (u8) ((((u32)payload[3]) << 5) & 0xf);
 		if ((payload[4] & 0x80) != 0) mpv_hdr[3] |= 0x10;
 		if (pic_type == 3) mpv_hdr[3] |= (payload[4] >> 3) & 0xf;