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avformat/iamf_reader: propagate avio_skip() error values

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Fixes: null pointer derference
Fixes: 67007/clusterfuzz-testcase-minimized-ffmpeg_dem_IAMF_fuzzer-6522819204677632

Tested-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2024-03-20 23:52:36 -03:00
parent e04c638f5f
commit 97d2990ea6
1 changed files with 2 additions and 4 deletions
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6
libavformat/iamf_reader.c
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@ -310,10 +310,8 @@ int ff_iamf_read_packet(AVFormatContext *s, IAMFDemuxContext *c,
c->recon_size = 0; c->recon_size = 0;
} else { } else {
int64_t offset = avio_skip(pb, obu_size); int64_t offset = avio_skip(pb, obu_size);
if (offset < 0) { if (offset < 0)
ret = offset; return offset;
break;
}
} }
max_size -= len; max_size -= len;
if (max_size < 0) if (max_size < 0)