diff --git a/libavformat/mpegts.c b/libavformat/mpegts.c
index fa0b608e61..0758152b3a 100644
--- a/libavformat/mpegts.c
+++ b/libavformat/mpegts.c
@@ -2335,7 +2335,8 @@ static void pmt_cb(MpegTSFilter *filter, const uint8_t *section, int section_len
     av_log(ts->stream, AV_LOG_TRACE, "pcr_pid=0x%x\n", pcr_pid);
 
     program_info_length = get16(&p, p_end);
-    if (program_info_length < 0)
+
+    if (program_info_length < 0 || (program_info_length & 0xFFF) > p_end - p)
         return;
     program_info_length &= 0xfff;
     while (program_info_length >= 2) {