This is an automated email from the git hooks/post-receive script.

Git pushed a commit to branch release/8.0
in repository ffmpeg.

commit a8cd89512dcfb1d65810654eb2139f03ff038ddb
Author:     Michael Niedermayer <[email protected]>
AuthorDate: Mon May 18 23:37:12 2026 +0200
Commit:     Michael Niedermayer <[email protected]>
CommitDate: Sun Jun 14 04:58:59 2026 +0200

    avformat/flvdec: Check size at the top of the main loop
    
    Fixes: signed integer overflow
    Fixes: ffmpeg_flv_read_packet_libavformat_flvdec.c_1900_26.poc
    
    Found-by: iceray-Li
    Signed-off-by: Michael Niedermayer <[email protected]>
    (cherry picked from commit cc1459ed8559307bf94326343b7d4fbd64cc7d5e)
    Signed-off-by: Michael Niedermayer <[email protected]>
---
 libavformat/flvdec.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libavformat/flvdec.c b/libavformat/flvdec.c
index f8df1350ba..aafce388cc 100644
--- a/libavformat/flvdec.c
+++ b/libavformat/flvdec.c
@@ -1553,6 +1553,10 @@ skip:
 
     for (;;) {
         int track_size = size;
+        if (size < 0) {
+            ret = FFERROR_REDO;
+            goto leave;
+        }
 
         if (multitrack_type != MultitrackTypeOneTrack) {
             track_size = avio_rb24(s->pb);

_______________________________________________
ffmpeg-cvslog mailing list -- [email protected]
To unsubscribe send an email to [email protected]

Reply via email to