From a453f5549a8c3f8307200b32d3b342f0b4af3153 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sun, 14 May 2017 17:02:49 +0200 Subject: [PATCH] avcodec/pixlet: Fixes: runtime error: signed integer overflow: 9203954323419769657 + 29897660706736950 cannot be represented in type 'long' Fixes: 1569/clusterfuzz-testcase-minimized-6328690508038144 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/pixlet.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/pixlet.c b/libavcodec/pixlet.c index ccfd267557..05262648ae 100644 --- a/libavcodec/pixlet.c +++ b/libavcodec/pixlet.c @@ -256,7 +256,7 @@ static int read_high_coeffs(AVCodecContext *avctx, uint8_t *src, int16_t *dst, i j = 0; dst += stride; } - state += (int64_t)d * yflag - ((int64_t)(d * (uint64_t)state) >> 8); + state += (int64_t)d * (uint64_t)yflag - ((int64_t)(d * (uint64_t)state) >> 8); flag = 0;