From 74eb8e83e68428f294c34a751dafbf0274aa3ccc Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sun, 19 Apr 2020 17:05:53 +0200 Subject: [PATCH] avcodec/binkaudio: Fix 2Ghz sample_rate Fixes: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int' Fixes: 19950/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_BINKAUDIO_DCT_fuzzer-5765514337189888 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Suggested-by: Paul Signed-off-by: Michael Niedermayer (cherry picked from commit f603d10b1e6bb2fbf4dcccc43d3ea2fb911b36ba) Signed-off-by: Michael Niedermayer --- libavcodec/binkaudio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/binkaudio.c b/libavcodec/binkaudio.c index ebdcf8ce7f..b99b3688fa 100644 --- a/libavcodec/binkaudio.c +++ b/libavcodec/binkaudio.c @@ -108,7 +108,7 @@ static av_cold int decode_init(AVCodecContext *avctx) s->frame_len = 1 << frame_len_bits; s->overlap_len = s->frame_len / 16; s->block_size = (s->frame_len - s->overlap_len) * s->channels; - sample_rate_half = (sample_rate + 1) / 2; + sample_rate_half = (sample_rate + 1LL) / 2; if (avctx->codec->id == AV_CODEC_ID_BINKAUDIO_RDFT) s->root = 2.0 / (sqrt(s->frame_len) * 32768.0); else