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| author | Michael Niedermayer <michael@niedermayer.cc> | 2021-06-03 22:46:05 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-06-08 18:00:05 +0200 |
| commit | a0a4a527c3b0819368d9b148542bb7663f39df79 (patch) | |
| tree | 8beff03067a2b5d19e3c4e5b001e4f7be3662f7b | |
| parent | f7862e82686b347eb6a9e64fa7ccdf25d5a76b4b (diff) | |
| download | ffmpeg-a0a4a527c3b0819368d9b148542bb7663f39df79.tar.gz | |
avformat/rpl: Check for EOF and zero framesize
Fixes: Infinite loop
Fixes: 34751/clusterfuzz-testcase-minimized-ffmpeg_dem_RPL_fuzzer-5439330800762880
Fixes: 34774/clusterfuzz-testcase-minimized-ffmpeg_dem_RPL_fuzzer-5851571660390400
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/rpl.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavformat/rpl.c b/libavformat/rpl.c index de32490fbe..fac377b68e 100644 --- a/libavformat/rpl.c +++ b/libavformat/rpl.c @@ -339,7 +339,7 @@ static int rpl_read_packet(AVFormatContext *s, AVPacket *pkt) avio_skip(pb, 4); /* flags */ frame_size = avio_rl32(pb); - if (avio_seek(pb, -8, SEEK_CUR) < 0) + if (avio_feof(pb) || avio_seek(pb, -8, SEEK_CUR) < 0 || !frame_size) return AVERROR(EIO); ret = av_get_packet(pb, pkt, frame_size); |