From 842c268c6436c9e90e689402be138c2e539f7059 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sun, 22 Nov 2020 20:41:56 +0100 Subject: [PATCH] avformat/4xm: Make audio_frame_count 64bit Fixes: signed integer overflow: 2099257366 * 2 cannot be represented in type 'int' Fixes: 27486/clusterfuzz-testcase-minimized-ffmpeg_dem_FOURXM_fuzzer-5112179134824448 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavformat/4xm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavformat/4xm.c b/libavformat/4xm.c index 6a227a0b0d..30f1b05324 100644 --- a/libavformat/4xm.c +++ b/libavformat/4xm.c @@ -299,7 +299,7 @@ static int fourxm_read_packet(AVFormatContext *s, unsigned int track_number; int packet_read = 0; unsigned char header[8]; - int audio_frame_count; + int64_t audio_frame_count; while (!packet_read) { if ((ret = avio_read(s->pb, header, 8)) < 0)