From 1d04fc94e1021b70e542dc01a48b8398c6fc6325 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sun, 21 May 2017 02:42:12 +0200 Subject: [PATCH] avcodec/mlpdsp: Fix runtime error: signed integer overflow: -24419392 * 128 cannot be represented in type 'int' Fixes: 1711/clusterfuzz-testcase-minimized-5248503515185152 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer --- libavcodec/mlpdsp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/mlpdsp.c b/libavcodec/mlpdsp.c index 2fc453c1f0..fbafa92d72 100644 --- a/libavcodec/mlpdsp.c +++ b/libavcodec/mlpdsp.c @@ -114,7 +114,7 @@ int32_t ff_mlp_pack_output(int32_t lossless_check_data, for (out_ch = 0; out_ch <= max_matrix_channel; out_ch++) { int mat_ch = ch_assign[out_ch]; int32_t sample = sample_buffer[i][mat_ch] * - (1 << output_shift[mat_ch]); + (1U << output_shift[mat_ch]); lossless_check_data ^= (sample & 0xffffff) << mat_ch; if (is32) *data_32++ = sample << 8;