From 41d96af2a74cb5df50346b160067facd43149667 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Fri, 27 Oct 2017 02:23:21 +0200 Subject: avcodec/aacdec_fixed: Fix integer overflow in apply_dependent_coupling_fixed() Fixes: runtime error: signed integer overflow: 623487 * 536870912 cannot be represented in type 'int' Fixes: 3594/clusterfuzz-testcase-minimized-4650622935629824 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/aacdec_fixed.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'libavcodec') diff --git a/libavcodec/aacdec_fixed.c b/libavcodec/aacdec_fixed.c index 5e9249c..d802f38 100644 --- a/libavcodec/aacdec_fixed.c +++ b/libavcodec/aacdec_fixed.c @@ -394,7 +394,7 @@ static void apply_dependent_coupling_fixed(AACContext *ac, for (k = offsets[i]; k < offsets[i + 1]; k++) { tmp = (int)(((int64_t)src[group * 128 + k] * c + \ (int64_t)0x1000000000) >> 37); - dest[group * 128 + k] += tmp * (1 << shift); + dest[group * 128 + k] += tmp * (1U << shift); } } } -- cgit v1.1