From 53a502206a9ea698926694d7252526fe00d1ea44 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Wed, 17 May 2017 15:51:46 +0200 Subject: avcodec/aacdec_template: Fix fixed point scale in decode_cce() Fixes: runtime error: shift exponent 1073741824 is too large for 32-bit type 'int' Fixes: 1654/clusterfuzz-testcase-minimized-5151903795118080 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/aacdec_template.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'libavcodec/aacdec_template.c') diff --git a/libavcodec/aacdec_template.c b/libavcodec/aacdec_template.c index d034ae4feb..a3780c647e 100644 --- a/libavcodec/aacdec_template.c +++ b/libavcodec/aacdec_template.c @@ -2181,7 +2181,11 @@ static int decode_cce(AACContext *ac, GetBitContext *gb, ChannelElement *che) coup->coupling_point += get_bits1(gb) || (coup->coupling_point >> 1); sign = get_bits(gb, 1); - scale = AAC_RENAME(cce_scale)[get_bits(gb, 2)]; +#if USE_FIXED + scale = get_bits(gb, 2); +#else + scale = cce_scale[get_bits(gb, 2)]; +#endif if ((ret = decode_ics(ac, sce, gb, 0, 0))) return ret; -- cgit v1.2.3