The minimum valid packet length is 28, given that the length includes
the packet header.

This didn't cause any issues so far as the code did not care about the
last two fields in the SR section, but will be relevant in a future
commit.
---
 libavformat/rtpdec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavformat/rtpdec.c b/libavformat/rtpdec.c
index 2e2cbf5477..97aabcf542 100644
--- a/libavformat/rtpdec.c
+++ b/libavformat/rtpdec.c
@@ -187,7 +187,7 @@ static int rtcp_parse_packet(RTPDemuxContext *s, const 
unsigned char *buf,
 
         switch (buf[1]) {
         case RTCP_SR:
-            if (payload_len < 20) {
+            if (payload_len < 28) {
                 av_log(s->ic, AV_LOG_ERROR, "Invalid RTCP SR packet length\n");
                 return AVERROR_INVALIDDATA;
             }
-- 
2.39.5 (Apple Git-154)

_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-devel

To unsubscribe, visit link above, or email
ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".

Reply via email to