ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Sat Jul 28 11:42:37 2018 +0200| [40c2f870aec923894692752718193404151b17b2] | committer: Michael Niedermayer
avcodec/aacdec_template: Check for duplicate elements Fixes: Timeout Fixes: 9552/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AAC_FIXED_fuzzer-6027842339995648 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=40c2f870aec923894692752718193404151b17b2 --- libavcodec/aacdec_template.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/libavcodec/aacdec_template.c b/libavcodec/aacdec_template.c index 0c899285dd..b60b31a92c 100644 --- a/libavcodec/aacdec_template.c +++ b/libavcodec/aacdec_template.c @@ -3122,6 +3122,7 @@ static int aac_decode_frame_int(AVCodecContext *avctx, void *data, int samples = 0, multiplier, audio_found = 0, pce_found = 0; int is_dmono, sce_count = 0; int payload_alignment; + uint8_t che_presence[4][MAX_ELEM_ID] = {{0}}; ac->frame = data; @@ -3159,6 +3160,14 @@ static int aac_decode_frame_int(AVCodecContext *avctx, void *data, } if (elem_type < TYPE_DSE) { + if (che_presence[elem_type][elem_id]) { + av_log(ac->avctx, AV_LOG_ERROR, "channel element %d.%d duplicate\n", + elem_type, elem_id); + err = AVERROR_INVALIDDATA; + goto fail; + } + che_presence[elem_type][elem_id] = 1; + if (!(che=get_che(ac, elem_type, elem_id))) { av_log(ac->avctx, AV_LOG_ERROR, "channel element %d.%d is not allocated\n", elem_type, elem_id); _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
