From: Michael Niedermayer Date: Wed, 17 Jul 2019 23:00:11 +0000 (+0200) Subject: avformat/ifv: Check for EOF in read_index() X-Git-Tag: n4.2~92 X-Git-Url: http://git.videolan.org/gitweb.cgi/ffmpeg.git/?p=ffmpeg.git;p=ffmpeg.git;a=commitdiff_plain;h=00ed04d6149691a9abf486b2f88172fd6341d801 avformat/ifv: Check for EOF in read_index() Fixes: Timeout Fixes: 15567/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5758451487080448 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Peter Ross Signed-off-by: Michael Niedermayer --- diff --git a/libavformat/ifv.c b/libavformat/ifv.c index 6acbb29a75..f95e9b0e52 100644 --- a/libavformat/ifv.c +++ b/libavformat/ifv.c @@ -68,6 +68,8 @@ static int read_index(AVFormatContext *s, } for (i = start_index; i < end_index; i++) { + if (avio_feof(s->pb)) + return AVERROR_EOF; pos = avio_rl32(s->pb); size = avio_rl32(s->pb);