From 1278f117d75ab9238ef181ba29b31c6ea569571b Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sun, 25 Oct 2020 00:23:10 +0200 Subject: [PATCH] avformat/avs: Use 64bit for the avio_tell() output Fixes: signed integer overflow: 9223372036854775807 - -1 cannot be represented in type 'long' Fixes: 26549/clusterfuzz-testcase-minimized-ffmpeg_dem_AVS_fuzzer-4844306424397824 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavformat/avs.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/libavformat/avs.c b/libavformat/avs.c index 54b2c3f2a9..097c171908 100644 --- a/libavformat/avs.c +++ b/libavformat/avs.c @@ -128,7 +128,8 @@ avs_read_video_packet(AVFormatContext * s, AVPacket * pkt, static int avs_read_audio_packet(AVFormatContext * s, AVPacket * pkt) { AvsFormat *avs = s->priv_data; - int ret, size; + int ret; + int64_t size; size = avio_tell(s->pb); ret = ff_voc_get_packet(s, pkt, avs->st_audio, avs->remaining_audio_size);