Fixes: 3e+47 is outside the range of representable values of type 'int' Fixes: 16057/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5691111307214848
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavformat/mpsubdec.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/libavformat/mpsubdec.c b/libavformat/mpsubdec.c index 4ff49ba3cf..a8217a4a61 100644 --- a/libavformat/mpsubdec.c +++ b/libavformat/mpsubdec.c @@ -83,13 +83,20 @@ static int mpsub_read_header(AVFormatContext *s) ff_subtitles_read_chunk(s->pb, &buf); if (buf.len) { + double ts = current_pts + start*multiplier; sub = ff_subtitles_queue_insert(&mpsub->q, buf.str, buf.len, 0); if (!sub) { res = AVERROR(ENOMEM); goto end; } - sub->pts = (int64_t)(current_pts + start*multiplier); - sub->duration = (int)(duration * multiplier); + if (!isfinite(ts) || ts < INT64_MIN || ts > INT64_MAX) { + avpriv_request_sample(s, "Invalid ts\n"); + } else + sub->pts = (int64_t)ts; + if (!isfinite(duration) || duration * multiplier > INT_MAX || duration < 0) { + avpriv_request_sample(s, "Invalid duration\n"); + } else + sub->duration = (int)(duration * multiplier); current_pts += (start + duration) * multiplier; sub->pos = pos; } -- 2.22.0 _______________________________________________ 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".
