ffmpeg | branch: release/4.0 | Michael Niedermayer <mich...@niedermayer.cc> | Sun Dec 16 21:43:07 2018 +0100| [67bc75d5b1bc48ee29c9bc9ac07a7ecbafdd7a8a] | committer: Michael Niedermayer
avcodec/fic: Fail on invalid slice size/off Fixes: Timeout Fixes: 11486/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FIC_fuzzer-5677133863583744 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> (cherry picked from commit 30a7a81cdc2ee2eac6d3271439c43f11b7327b3e) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=67bc75d5b1bc48ee29c9bc9ac07a7ecbafdd7a8a --- libavcodec/fic.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavcodec/fic.c b/libavcodec/fic.c index c288c9771b..0b491ef7de 100644 --- a/libavcodec/fic.c +++ b/libavcodec/fic.c @@ -380,6 +380,8 @@ static int fic_decode_frame(AVCodecContext *avctx, void *data, slice_h = FFALIGN(avctx->height - ctx->slice_h * (nslices - 1), 16); } else { slice_size = AV_RB32(src + tsize + FIC_HEADER_SIZE + slice * 4 + 4); + if (slice_size < slice_off) + return AVERROR_INVALIDDATA; } if (slice_size < slice_off || slice_size > msize) _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
