ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Wed Jan 11 23:56:05 2023 +0100| [df1a38d5200e14a29903f1027b4548d595c7ff8a] | committer: Michael Niedermayer
avcodec/pngdec: dont skip/read chunk twice Fixes: out of array access Fixes: 48567/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_PNG_fuzzer-6668158952144896.fuzz 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=df1a38d5200e14a29903f1027b4548d595c7ff8a --- libavcodec/pngdec.c | 1 + 1 file changed, 1 insertion(+) diff --git a/libavcodec/pngdec.c b/libavcodec/pngdec.c index 1ba1bb20d0..d63640345b 100644 --- a/libavcodec/pngdec.c +++ b/libavcodec/pngdec.c @@ -1238,6 +1238,7 @@ static int decode_frame_common(AVCodecContext *avctx, PNGDecContext *s, } av_log(avctx, AV_LOG_ERROR, ", skipping\n"); bytestream2_skip(&s->gb, length + 8); /* tag */ + continue; } } tag = bytestream2_get_le32(&s->gb); _______________________________________________ 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".
