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avcodec/aac/aacdec_usac: Clean ics2->max_sfb when first SCE fails

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Fixes: out of array access
Fixes: 70734/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AAC_LATM_fuzzer-4741427068731392
Fixes: 383194070/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AAC_LATM_fuzzer-5302387708854272

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Lynne <dev@lynne.ee>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer
2024-07-31 20:59:49 +02:00
parent 1e76bd2f39
commit 682d710bcb
1 changed files with 3 additions and 1 deletions
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4
libavcodec/aac/aacdec_usac.c
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@@ -917,8 +917,10 @@ static int decode_usac_stereo_info(AACDecContext *ac, AACUSACConfig *usac,
} }
ret = setup_sce(ac, sce1, usac); ret = setup_sce(ac, sce1, usac);
if (ret < 0) if (ret < 0) {
ics2->max_sfb = 0;
return ret; return ret;
}
ret = setup_sce(ac, sce2, usac); ret = setup_sce(ac, sce2, usac);
if (ret < 0) if (ret < 0)