mirror of https://git.ffmpeg.org/ffmpeg.git
avformat/rmdec: sanity check coded_framesize
Fixes: signed integer overflow: -14671840 * 8224 cannot be represented in type 'int' Fixes: 24793/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5101884323659776 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
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@ -165,7 +165,11 @@ static int rm_read_audio_stream_info(AVFormatContext *s, AVIOContext *pb,
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avio_rb16(pb); /* version2 */
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avio_rb16(pb); /* version2 */
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avio_rb32(pb); /* header size */
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avio_rb32(pb); /* header size */
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flavor= avio_rb16(pb); /* add codec info / flavor */
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flavor= avio_rb16(pb); /* add codec info / flavor */
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ast->coded_framesize = coded_framesize = avio_rb32(pb); /* coded frame size */
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coded_framesize = avio_rb32(pb); /* coded frame size */
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if (coded_framesize < 0)
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return AVERROR_INVALIDDATA;
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ast->coded_framesize = coded_framesize;
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avio_rb32(pb); /* ??? */
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avio_rb32(pb); /* ??? */
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bytes_per_minute = avio_rb32(pb);
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bytes_per_minute = avio_rb32(pb);
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if (version == 4) {
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if (version == 4) {
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