From e8a3498f2452ba2be605b1ffb5974143095aacf1 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Tue, 21 Feb 2017 00:11:19 +0100 Subject: avcodec/dca_xll: Fix runtime error: signed integer overflow: -1073741824 * 32768 cannot be represented in type 'int' Fixes: 629/clusterfuzz-testcase-6697457381539840 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/dca_xll.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'libavcodec/dca_xll.c') diff --git a/libavcodec/dca_xll.c b/libavcodec/dca_xll.c index 435f84ed7e..3dfde6b68d 100644 --- a/libavcodec/dca_xll.c +++ b/libavcodec/dca_xll.c @@ -717,10 +717,10 @@ static void chs_assemble_msbs_lsbs(DCAXllDecoder *s, DCAXllChSet *c, int band) int32_t *lsb = b->lsb_sample_buffer[ch]; int adj = b->bit_width_adjust[ch]; for (n = 0; n < nsamples; n++) - msb[n] = msb[n] * (1 << shift) + (lsb[n] << adj); + msb[n] = msb[n] * (SUINT)(1 << shift) + (lsb[n] << adj); } else { for (n = 0; n < nsamples; n++) - msb[n] = msb[n] * (1 << shift); + msb[n] = msb[n] * (SUINT)(1 << shift); } } } -- cgit v1.2.3