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avcodec/utils, avcodec_open2: close codec on failure

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after a successful init if the function fails for another reason close
the codec without requiring FF_CODEC_CAP_INIT_CLEANUP which is meant to
cover init failures themselves. fixes a memory leak in those cases.

BUG=oss-fuzz:15529

Signed-off-by: James Zern <jzern@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
James Zern 2019-07-09 19:03:58 -07:00 committed by Michael Niedermayer
parent 94d45a13c7
commit b1febda061
1 changed files with 4 additions and 1 deletions
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5
libavcodec/utils.c
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@ -542,6 +542,7 @@ int attribute_align_arg ff_codec_open2_recursive(AVCodecContext *avctx, const AV
int attribute_align_arg avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options)
{
int ret = 0;
int codec_init_ok = 0;
AVDictionary *tmp = NULL;
const AVPixFmtDescriptor *pixdesc;
@ -935,6 +936,7 @@ FF_ENABLE_DEPRECATION_WARNINGS
if (ret < 0) {
goto free_and_end;
}
codec_init_ok = 1;
}
ret=0;
@ -1023,7 +1025,8 @@ end:
return ret;
free_and_end:
if (avctx->codec &&
(avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP))
(codec_init_ok ||
(avctx->codec->caps_internal & FF_CODEC_CAP_INIT_CLEANUP)))
avctx->codec->close(avctx);
if (codec->priv_class && codec->priv_data_size)