Message ID | 20210413154539.16739-1-michael@niedermayer.cc |
---|---|
State | Accepted |
Commit | c093eb30311b7148a4da1c7555498187c8cdf0db |
Headers | show |
Series | [FFmpeg-devel,1/5] avcodec/dpx: Check bits_per_color earlier | 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 Tue, Apr 13, 2021 at 05:45:35PM +0200, Michael Niedermayer wrote: > Fixes: shift exponent 251 is too large for 32-bit type 'int' > Fixes: 32147/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DPX_fuzzer-5519111675314176 > > Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> > --- > libavcodec/dpx.c | 3 +++ > 1 file changed, 3 insertions(+) will apply [...]
diff --git a/libavcodec/dpx.c b/libavcodec/dpx.c index 5372e3d586..b02996f04c 100644 --- a/libavcodec/dpx.c +++ b/libavcodec/dpx.c @@ -242,6 +242,9 @@ static int decode_frame(AVCodecContext *avctx, return AVERROR_PATCHWELCOME; } + if (bits_per_color > 32) + return AVERROR_INVALIDDATA; + buf += 820; avctx->sample_aspect_ratio.num = read32(&buf, endian); avctx->sample_aspect_ratio.den = read32(&buf, endian);
Fixes: shift exponent 251 is too large for 32-bit type 'int' Fixes: 32147/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DPX_fuzzer-5519111675314176 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavcodec/dpx.c | 3 +++ 1 file changed, 3 insertions(+)