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avcodec/dstdec: Fix integer overflow in samples_per_frame computation

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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 <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 7dc0943d4a)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer
2019-09-25 16:48:46 +02:00
parent ea8d459fc9
commit 3ba1413f04
1 changed files with 1 additions and 1 deletions
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libavcodec/dstdec.c
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@@ -37,7 +37,7 @@
#define DST_MAX_CHANNELS 6 #define DST_MAX_CHANNELS 6
#define DST_MAX_ELEMENTS (2 * DST_MAX_CHANNELS) #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)) #define DST_SAMPLES_PER_FRAME(sample_rate) (588 * DSD_FS44(sample_rate))