From: John Stebbins <jstebbins.hb@gmail.com>
Date: Wed, 16 Jan 2019 00:35:27 +0000 (-0800)
Subject: Fix potential NULL pointer dereference
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=7dcbdcce4b33473f679594403b98bdda330b1b49;p=handbrake

Fix potential NULL pointer dereference
---

diff --git a/libhb/fifo.c b/libhb/fifo.c
index 4288f5700..70c3eca81 100644
--- a/libhb/fifo.c
+++ b/libhb/fifo.c
@@ -450,8 +450,11 @@ void hb_buffer_realloc( hb_buffer_t * b, int size )
         {
             return;
         }
-        memcpy(tmp, b->data, b->alloc);
-        av_free(b->data);
+        if (b->data != NULL)
+        {
+            memcpy(tmp, b->data, b->alloc);
+            av_free(b->data);
+        }
         b->data  = tmp;
         b->alloc = size;