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avformat/iff: check av_get_packet() result in ANIM branch

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Fixes: 494958338/clusterfuzz-testcase-minimized-ffmpeg_dem_IFF_fuzzer-6265824670449664
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 43f712d917)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer
2026-05-31 04:39:28 +02:00
parent de03bce1b8
commit e689fb8f42
1 changed files with 2 additions and 0 deletions
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libavformat/iff.c
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@@ -886,6 +886,8 @@ static int iff_read_packet(AVFormatContext *s,
}
}
ret = av_get_packet(pb, pkt, data_size);
if (ret < 0)
return ret;
pkt->pos = orig_pos;
pkt->duration = get_anim_duration(pkt->data, pkt->size);
if (pos == 12)