ffmpeg | branch: release/6.1 | Michael Niedermayer <mich...@niedermayer.cc> | Sun Aug 3 14:39:53 2025 +0200| [6f8a9bea331c8d9be5bee54c1f2df9afda0da0fb] | committer: Michael Niedermayer
avcodec/imc: Clear padding of buf16 Fixes: use of uninitialized memory Fixes: 423673969/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_IAC_fuzzer-6685890556788736 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> (cherry picked from commit 715df4b1ff398758ca1b8a82c3d16940bc63fc56) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=6f8a9bea331c8d9be5bee54c1f2df9afda0da0fb --- libavcodec/imc.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavcodec/imc.c b/libavcodec/imc.c index 754ceff958..eb6709a876 100644 --- a/libavcodec/imc.c +++ b/libavcodec/imc.c @@ -971,6 +971,8 @@ static int imc_decode_frame(AVCodecContext *avctx, AVFrame *frame, LOCAL_ALIGNED_16(uint16_t, buf16, [(IMC_BLOCK_SIZE + AV_INPUT_BUFFER_PADDING_SIZE) / 2]); + memset(buf16 + IMC_BLOCK_SIZE/2, 0, AV_INPUT_BUFFER_PADDING_SIZE); + q->avctx = avctx; if (buf_size < IMC_BLOCK_SIZE * avctx->ch_layout.nb_channels) { _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
