Changeset 96492 in vbox for trunk/src/VBox/Devices/Network

Timestamp:

Aug 25, 2022 2:34:59 PM (3 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

153340

Message:

NAT: Zero newly allocated memory for sbufs to avoid potential
information leakage. bugref:10283

File:

• trunk/src/VBox/Devices/Network/slirp/sbuf.c (modified) (3 diffs)

trunk/src/VBox/Devices/Network/slirp/sbuf.c

@@ -91 +91 @@
             sb->sb_wptr =
             sb->sb_rptr =
-            sb->sb_data = (char *)RTMemRealloc(sb->sb_data, size);
+            sb->sb_data = (char *)RTMemReallocZ(sb->sb_data, sb->sb_datalen, size);
             sb->sb_cc = 0;
             if (sb->sb_wptr)
@@ -101 +101 @@
     else
     {
-        sb->sb_wptr = sb->sb_rptr = sb->sb_data = (char *)RTMemAlloc(size);
+        sb->sb_wptr = sb->sb_rptr = sb->sb_data = (char *)RTMemAllocZ(size);
         sb->sb_cc = 0;
         if (sb->sb_wptr)
@@ -157 +157 @@
         if (m->m_next)
         {
-            buf = RTMemAlloc(mlen);
+            buf = RTMemAllocZ(mlen);
             if (buf == NULL)
             {