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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-10-09 10:19:42 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-10-10 14:34:20 +0200 |
| commit | a5d29812ec364ad4b83b5c2dba281f1b559a518b (patch) | |
| tree | c4f8ec01c4a167afe21868afbdb2e88e86129f5b /libavcodec | |
| parent | 5de19160a3c0dedb3cefd00e863a8d8f74ca2ad0 (diff) | |
| download | ffmpeg-a5d29812ec364ad4b83b5c2dba281f1b559a518b.tar.gz | |
avcodec/wmaprodec: Fix cleanup on error
Fixes: memleaks
Fixes: 18023/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_XMA2_fuzzer-5642535011090432
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/wmaprodec.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/libavcodec/wmaprodec.c b/libavcodec/wmaprodec.c index 6ce2dd4adb..5c18479b3b 100644 --- a/libavcodec/wmaprodec.c +++ b/libavcodec/wmaprodec.c @@ -1888,12 +1888,14 @@ static av_cold int xma_decode_init(AVCodecContext *avctx) s->num_streams = avctx->extradata[1]; if (avctx->extradata_size != (32 + ((avctx->extradata[0]==3)?0:8) + 4*s->num_streams)) { av_log(avctx, AV_LOG_ERROR, "Incorrect XMA2 extradata size\n"); + s->num_streams = 0; return AVERROR(EINVAL); } } else if (avctx->codec_id == AV_CODEC_ID_XMA1 && avctx->extradata_size >= 4) { /* XMAWAVEFORMAT */ s->num_streams = avctx->extradata[4]; if (avctx->extradata_size != (8 + 20*s->num_streams)) { av_log(avctx, AV_LOG_ERROR, "Incorrect XMA1 extradata size\n"); + s->num_streams = 0; return AVERROR(EINVAL); } } else { @@ -1906,6 +1908,7 @@ static av_cold int xma_decode_init(AVCodecContext *avctx) s->num_streams <= 0 ) { avpriv_request_sample(avctx, "More than %d channels in %d streams", XMA_MAX_CHANNELS, s->num_streams); + s->num_streams = 0; return AVERROR_PATCHWELCOME; } @@ -1938,6 +1941,7 @@ static av_cold int xma_decode_end(AVCodecContext *avctx) decode_end(&s->xma[i]); av_frame_free(&s->frames[i]); } + s->num_streams = 0; return 0; } @@ -1993,6 +1997,7 @@ AVCodec ff_wmapro_decoder = { .close = wmapro_decode_end, .decode = wmapro_decode_packet, .capabilities = AV_CODEC_CAP_SUBFRAMES | AV_CODEC_CAP_DR1, + .caps_internal = FF_CODEC_CAP_INIT_CLEANUP, .flush = wmapro_flush, .sample_fmts = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_NONE }, @@ -2008,6 +2013,7 @@ AVCodec ff_xma1_decoder = { .close = xma_decode_end, .decode = xma_decode_packet, .capabilities = AV_CODEC_CAP_SUBFRAMES | AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DELAY, + .caps_internal = FF_CODEC_CAP_INIT_CLEANUP, .sample_fmts = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_NONE }, }; @@ -2023,6 +2029,7 @@ AVCodec ff_xma2_decoder = { .decode = xma_decode_packet, .flush = xma_flush, .capabilities = AV_CODEC_CAP_SUBFRAMES | AV_CODEC_CAP_DR1 | AV_CODEC_CAP_DELAY, + .caps_internal = FF_CODEC_CAP_INIT_CLEANUP, .sample_fmts = (const enum AVSampleFormat[]) { AV_SAMPLE_FMT_FLTP, AV_SAMPLE_FMT_NONE }, }; |