From: Michael Niedermayer Date: Wed, 25 Sep 2019 14:48:46 +0000 (+0200) Subject: avcodec/dstdec: Fix integer overflow in samples_per_frame computation X-Git-Url: https://git.sesse.net/?a=commitdiff_plain;h=7dc0943d4aa014e616e2f2a4802cb3da829f9420;p=ffmpeg avcodec/dstdec: Fix integer overflow in samples_per_frame computation Fixes: Timeout (? -> 2ms) Fixes: 17616/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DST_fuzzer-5198057947267072 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Paul B Mahol Signed-off-by: Michael Niedermayer --- diff --git a/libavcodec/dstdec.c b/libavcodec/dstdec.c index 0614c99c4bb..8a1bc6a7381 100644 --- a/libavcodec/dstdec.c +++ b/libavcodec/dstdec.c @@ -37,7 +37,7 @@ #define DST_MAX_CHANNELS 6 #define DST_MAX_ELEMENTS (2 * DST_MAX_CHANNELS) -#define DSD_FS44(sample_rate) (sample_rate * 8 / 44100) +#define DSD_FS44(sample_rate) (sample_rate * 8LL / 44100) #define DST_SAMPLES_PER_FRAME(sample_rate) (588 * DSD_FS44(sample_rate))