From 936aa281b589e312aeaca2e7db0ec9dc87a2f99a Mon Sep 17 00:00:00 2001 From: Jingning Han Date: Wed, 20 Feb 2013 15:32:17 -0800 Subject: [PATCH] Fixed the buffer overflow issue The issue that potentially broke the encoding process was due to the fact that the length of token link is calculated from the total number of tokens coded, while it is possible, in high bit-rate setting, this length is greater than the buffer length initially assigned to the cpi->tok. This patch increases the initially allocated buffer length assigned to cpi->tok from (mb_rows * mb_cols * 24 * 16) to (mb_rows * mb_cols * (1 + 24 * 16)). It resolves the buffer overflow problem. Change-Id: I8661a8d39ea0a3c24303e3f71a170787a1d5b1df --- vp9/encoder/vp9_onyx_if.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/vp9/encoder/vp9_onyx_if.c b/vp9/encoder/vp9_onyx_if.c index fbdc2d2cc..27e0e48a3 100644 --- a/vp9/encoder/vp9_onyx_if.c +++ b/vp9/encoder/vp9_onyx_if.c @@ -1148,7 +1148,7 @@ void vp9_alloc_compressor_data(VP9_COMP *cpi) { vpx_free(cpi->tok); { - unsigned int tokens = cm->mb_rows * cm->mb_cols * 24 * 16; + unsigned int tokens = cm->mb_rows * cm->mb_cols * (24 * 16 + 1); CHECK_MEM_ERROR(cpi->tok, vpx_calloc(tokens, sizeof(*cpi->tok))); } -- 2.40.0