From 6d499ecef9c2467772b6066176ffda0b7ab27cc2 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sun, 11 Jun 2017 14:32:35 +0200 Subject: avcodec/aacdec_fixed: Fix runtime error: left shift of negative value -1297616 Fixes: 2195/clusterfuzz-testcase-minimized-4736721533009920 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 d8786dff43..5c10aa32cc 100644 --- a/libavcodec/aacdec_fixed.c +++ b/libavcodec/aacdec_fixed.c @@ -389,7 +389,7 @@ 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 << shift; + dest[group * 128 + k] += tmp * (1 << shift); } } } -- cgit v1.2.3