commit 28f9e96f0983a1bbdbed0e296ce103ac515b2693
author Wan-Teh Chang <wtc@google.com> Thu Feb 25 16:06:21 2021 -0800
committer Wan-Teh Chang <wtc@google.com> Fri Feb 26 21:53:10 2021 +0000
tree 58abbca34313e3de6cb19a86df827e1347f57ed5
parent 7153aa3ce413393dd3ff8c2471812778bfcb17ee

Set ctx->cx_data_sz to 0 if ctx->cx_data is NULL

This is defensive programming. A nonzero buffer size should not be
associated with a null buffer pointer.

Change-Id: I2194594c7bc2f623c951293242337f25f263aeff

av1/av1_cx_iface.c

diff --git a/av1/av1_cx_iface.c b/av1/av1_cx_iface.c
index 9b82913..f6b6c72 100644
--- a/av1/av1_cx_iface.c
+++ b/av1/av1_cx_iface.c
@@ -2176,6 +2176,7 @@
         free(ctx->cx_data);
         ctx->cx_data = (unsigned char *)malloc(ctx->cx_data_sz);
         if (ctx->cx_data == NULL) {
+          ctx->cx_data_sz = 0;
           return AOM_CODEC_MEM_ERROR;
         }
       }