ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Thu May 9 23:49:41 2019 +0200| [cdd886a286fb7d55a7d525ec479b49284b7f8b44] | committer: Michael Niedermayer
avcodec/arbc: Skip tiles in fill_tileX() which are completely outside Fixes: signed integer overflow: 2052526848 + 147237888 cannot be represented in type 'int' Fixes: 14441/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ARBC_fuzzer-5717632944177152 Fixes: 14453/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ARBC_fuzzer-5739679254577152 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=cdd886a286fb7d55a7d525ec479b49284b7f8b44 --- libavcodec/arbc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavcodec/arbc.c b/libavcodec/arbc.c index bce4a4c96d..06970f140b 100644 --- a/libavcodec/arbc.c +++ b/libavcodec/arbc.c @@ -94,6 +94,9 @@ static int fill_tileX(AVCodecContext *avctx, int tile_width, int tile_height, int start_y = y * tile_height, start_x = x * tile_width; int end_y = start_y + tile_height, end_x = start_x + tile_width; + if (start_x >= avctx->width || start_y >= avctx->height) + continue; + for (int j = start_y; j < end_y; j += step_h) { for (int k = start_x; k < end_x; k += step_w) { if (mask & 0x8000U) { _______________________________________________ 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".
