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Bug 813562: Zero out vorbis structures in WebMReader() to avoid crashes due to uninitialized use r=kinetik

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This commit is contained in:
Steve Workman 2012-11-30 16:02:46 -08:00
parent f5d2c58055
commit c6edd3abd1
1 changed files with 7 additions and 0 deletions
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7
content/media/webm/WebMReader.cpp
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@ -115,6 +115,13 @@ WebMReader::WebMReader(AbstractMediaDecoder* aDecoder)
mHasAudio(false)
{
MOZ_COUNT_CTOR(WebMReader);
// Zero these member vars to avoid crashes in VP8 destroy and Vorbis clear
// functions when destructor is called before |Init|.
memset(&mVP8, 0, sizeof(vpx_codec_ctx_t));
memset(&mVorbisBlock, 0, sizeof(vorbis_block));
memset(&mVorbisDsp, 0, sizeof(vorbis_dsp_state));
memset(&mVorbisInfo, 0, sizeof(vorbis_info));
memset(&mVorbisComment, 0, sizeof(vorbis_comment));
}
WebMReader::~WebMReader()