Changeset 89558 in vbox

Timestamp:

Jun 8, 2021 8:11:48 AM (3 years ago)

Author:

vboxsync

Message:

AudioMixer: Must use RTMemAllocZVar when doing variable length allocation for the mixer and sink, or the electric fence heap will misalign the blocks causing critsect trouble. bugref:9890

File:

• trunk/src/VBox/Devices/Audio/AudioMixer.cpp (modified) (2 diffs)

trunk/src/VBox/Devices/Audio/AudioMixer.cpp

@@ -175 +175 @@
 
     int         rc;
-    PAUDIOMIXER pMixer = (PAUDIOMIXER)RTMemAllocZ(sizeof(AUDIOMIXER) + cchName + 1);
+    PAUDIOMIXER pMixer = (PAUDIOMIXER)RTMemAllocZVar(sizeof(AUDIOMIXER) + cchName + 1);
     if (pMixer)
     {
@@ -379 +379 @@
      * Allocate the data and initialize the critsect.
      */
-    PAUDMIXSINK pSink = (PAUDMIXSINK)RTMemAllocZ(sizeof(AUDMIXSINK) + cchName + 1);
+    PAUDMIXSINK pSink = (PAUDMIXSINK)RTMemAllocZVar(sizeof(AUDMIXSINK) + cchName + 1);
     if (pSink)
     {