ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Thu Feb 6 00:33:40 2020 +0100| [0a9ccc2514da82812584b0e49a30625151d225e9] | committer: Michael Niedermayer
avcodec/intrax8: Check for end of bitstream in ff_intrax8_decode_picture() Fixes: Timeout (105sec -> 1sec) Fixes: 20479/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC1_fuzzer-5769846937878528 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=0a9ccc2514da82812584b0e49a30625151d225e9 --- libavcodec/intrax8.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavcodec/intrax8.c b/libavcodec/intrax8.c index d46f97c7a4..f385423dc1 100644 --- a/libavcodec/intrax8.c +++ b/libavcodec/intrax8.c @@ -801,6 +801,8 @@ int ff_intrax8_decode_picture(IntraX8Context *w, Picture *pict, for (w->mb_y = 0; w->mb_y < w->mb_height * 2; w->mb_y++) { x8_init_block_index(w, w->frame); mb_xy = (w->mb_y >> 1) * (w->mb_width + 1); + if (get_bits_left(gb) < 1) + goto error; for (w->mb_x = 0; w->mb_x < w->mb_width * 2; w->mb_x++) { x8_get_prediction(w); if (x8_setup_spatial_predictor(w, 0)) _______________________________________________ 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".
