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avcodec/v4l2_m2m_dec: Fix memleak on ff_v4l2_m2m_codec_init() failure 

Fixes: 13579/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MPEG1_V4L2M2M_fuzzer-5753560726241280

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2019-06-01 16:44:46 +02:00
parent 640e401aed
commit e5f92f3fba
1 changed files with 4 additions and 0 deletions
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4
libavcodec/v4l2_m2m_dec.c
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@ -188,7 +188,11 @@ static av_cold int v4l2_decode_init(AVCodecContext *avctx)
ret = ff_v4l2_m2m_codec_init(avctx);
if (ret) {
V4L2m2mPriv *priv = avctx->priv_data;
av_log(avctx, AV_LOG_ERROR, "can't configure decoder\n");
s->self_ref = NULL;
av_buffer_unref(&priv->context_ref);
return ret;
}