Message ID | 20210419182346.4445-9-michael@niedermayer.cc |
---|---|
State | Accepted |
Commit | 63e75e09aef5836330a2786f0a9229ed82239e6b |
Headers | show |
Series | [FFmpeg-devel,1/9] avformat/utils: check dts/duration to be representable before using them | expand |
Context | Check | Description |
---|---|---|
andriy/x86_make | success | Make finished |
andriy/x86_make_fate | success | Make fate finished |
andriy/PPC64_make | success | Make finished |
andriy/PPC64_make_fate | success | Make fate finished |
On Mon, Apr 19, 2021 at 08:23:46PM +0200, Michael Niedermayer wrote: > Fixes: shift exponent -1 is negative > Fixes: 33401/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CLEARVIDEO_fuzzer-5908683596890112 > > Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> > --- > libavcodec/clearvideo.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) will apply [...]
diff --git a/libavcodec/clearvideo.c b/libavcodec/clearvideo.c index 79ba88857c..b3ccb51334 100644 --- a/libavcodec/clearvideo.c +++ b/libavcodec/clearvideo.c @@ -722,8 +722,8 @@ static av_cold int clv_decode_init(AVCodecContext *avctx) } c->tile_shift = av_log2(c->tile_size); - if (1U << c->tile_shift != c->tile_size) { - av_log(avctx, AV_LOG_ERROR, "Tile size: %d, is not power of 2.\n", c->tile_size); + if (1U << c->tile_shift != c->tile_size || c->tile_shift < 1) { + av_log(avctx, AV_LOG_ERROR, "Tile size: %d, is not power of 2 > 1\n", c->tile_size); return AVERROR_INVALIDDATA; }
Fixes: shift exponent -1 is negative Fixes: 33401/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CLEARVIDEO_fuzzer-5908683596890112 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavcodec/clearvideo.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)