ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Sun Jun 14 23:45:46 2020 +0200| [276dfa9d91ee50183824612803891b7d066e8f00] | committer: Michael Niedermayer
avcodec/tiff: Check stride for dng Fixes: assertion failure Fixes: 23422/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TIFF_fuzzer-5746026064642048 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=276dfa9d91ee50183824612803891b7d066e8f00 --- libavcodec/tiff.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavcodec/tiff.c b/libavcodec/tiff.c index 010943c38c..dc24d055ec 100644 --- a/libavcodec/tiff.c +++ b/libavcodec/tiff.c @@ -679,6 +679,9 @@ static int tiff_unpack_strip(TiffContext *s, AVFrame *p, uint8_t *dst, int strid return 0; } + if (is_dng && stride == 0) + return AVERROR_INVALIDDATA; + for (line = 0; line < lines; line++) { if (src - ssrc > size) { av_log(s->avctx, AV_LOG_ERROR, "Source data overread\n"); _______________________________________________ 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".
