Message ID | 20200404223842.29972-2-michael@niedermayer.cc |
---|---|
State | Accepted |
Commit | 588114cea4ee434c9c61353ed91ffc817d2965f5 |
Headers | show |
Series | [FFmpeg-devel,1/2] avformat/oggparsevorbis: Update context on double init | expand |
Context | Check | Description |
---|---|---|
andriy/ffmpeg-patchwork | success | Make fate finished |
On Sun, Apr 05, 2020 at 12:38:42AM +0200, Michael Niedermayer wrote: > Fixes: out of array access > Fixes: 20446/clusterfuzz-testcase-minimized-ffmpeg_BSF_HEVC_METADATA_fuzzer-5707770718584832 > > Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> > --- > libavcodec/cbs_h265_syntax_template.c | 4 ++++ > 1 file changed, 4 insertions(+) will apply [...]
diff --git a/libavcodec/cbs_h265_syntax_template.c b/libavcodec/cbs_h265_syntax_template.c index 180a045c34..5f5531944c 100644 --- a/libavcodec/cbs_h265_syntax_template.c +++ b/libavcodec/cbs_h265_syntax_template.c @@ -601,6 +601,8 @@ static int FUNC(st_ref_pic_set)(CodedBitstreamContext *ctx, RWContext *rw, } } + if (i > 15) + return AVERROR_INVALIDDATA; infer(num_negative_pics, i); for (i = 0; i < current->num_negative_pics; i++) { infer(delta_poc_s0_minus1[i], @@ -630,6 +632,8 @@ static int FUNC(st_ref_pic_set)(CodedBitstreamContext *ctx, RWContext *rw, } } + if (i + current->num_negative_pics > 15) + return AVERROR_INVALIDDATA; infer(num_positive_pics, i); for (i = 0; i < current->num_positive_pics; i++) { infer(delta_poc_s1_minus1[i],
Fixes: out of array access Fixes: 20446/clusterfuzz-testcase-minimized-ffmpeg_BSF_HEVC_METADATA_fuzzer-5707770718584832 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavcodec/cbs_h265_syntax_template.c | 4 ++++ 1 file changed, 4 insertions(+)