mirror of https://git.ffmpeg.org/ffmpeg.git
avformat/id3v2: Check the return from avio_get_str()
Fixes: out of array access Fixes: 29446/clusterfuzz-testcase-minimized-ffmpeg_dem_AAC_fuzzer-5096222622875648 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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@ -605,7 +605,10 @@ static void read_apic(AVFormatContext *s, AVIOContext *pb, int taglen,
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/* mimetype */
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if (isv34) {
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taglen -= avio_get_str(pb, taglen, mimetype, sizeof(mimetype));
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int ret = avio_get_str(pb, taglen, mimetype, sizeof(mimetype));
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if (ret < 0 || ret >= taglen)
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goto fail;
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taglen -= ret;
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} else {
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if (avio_read(pb, mimetype, 3) < 0)
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goto fail;
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