ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Tue May 9 16:08:14 2017 +0200| [78aa93807b3e0674e34d32c0bf6f78d7f5b7927e] | committer: Michael Niedermayer
avcodec/snowdec: Check width Fixes: out of array read Fixes: 1419/clusterfuzz-testcase-minimized-6108700873850880 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=78aa93807b3e0674e34d32c0bf6f78d7f5b7927e --- libavcodec/snowdec.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/libavcodec/snowdec.c b/libavcodec/snowdec.c index 8c35e3e084..bcb3469062 100644 --- a/libavcodec/snowdec.c +++ b/libavcodec/snowdec.c @@ -384,6 +384,10 @@ static int decode_header(SnowContext *s){ av_log(s->avctx, AV_LOG_ERROR, "spatial_decomposition_count %d too large for size\n", s->spatial_decomposition_count); return AVERROR_INVALIDDATA; } + if (s->avctx->width > 65536-4) { + av_log(s->avctx, AV_LOG_ERROR, "Width %d is too large\n", s->avctx->width); + return AVERROR_INVALIDDATA; + } s->qlog += get_symbol(&s->c, s->header_state, 1); _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
