Fixes: Infinite loop Fixes: 26445/clusterfuzz-testcase-minimized-ffmpeg_dem_WTV_fuzzer-5125558331244544
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavformat/wtvdec.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/libavformat/wtvdec.c b/libavformat/wtvdec.c index 83f510b92f..77908e6392 100644 --- a/libavformat/wtvdec.c +++ b/libavformat/wtvdec.c @@ -273,6 +273,11 @@ static AVIOContext * wtvfile_open2(AVFormatContext *s, const uint8_t *buf, int b "bad filename length, remaining directory entries ignored\n"); break; } + if (dir_length == 0) { + av_log(s, AV_LOG_ERROR, + "bad dir length, remaining directory entries ignored\n"); + break; + } if (48 + (int64_t)name_size > buf_end - buf) { av_log(s, AV_LOG_ERROR, "filename exceeds buffer size; remaining directory entries ignored\n"); break; -- 2.17.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
