Changeset 25484 in vbox for trunk/src/VBox/HostDrivers/Support/SUPDrvInternal.h

Timestamp:

Dec 18, 2009 2:04:56 PM (15 years ago)

Author:

vboxsync

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

56153

Message:

SUPDrv: Fixed recent regression that may cause the SUPDRVSESSION allocation to be too small on some platforms, and thereby corrupting heap or/and triggering system panic.

File:

• trunk/src/VBox/HostDrivers/Support/SUPDrvInternal.h (modified) (2 diffs)

trunk/src/VBox/HostDrivers/Support/SUPDrvInternal.h

@@ -465 +465 @@
     /** Global cookie. */
     uint32_t                        u32Cookie;
-
-    /** The IDT entry number.
-     * Only valid if pIdtPatches is set. */
-    uint8_t volatile                u8Idt;
+    /** The actual size of SUPDRVSESSION. (SUPDRV_AGNOSTIC) */
+    uint32_t                        cbSession;
 
     /** Loader mutex.
@@ -600 +598 @@
 int  VBOXCALL   supdrvIOCtlFast(uintptr_t uIOCtl, VMCPUID idCpu, PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession);
 int  VBOXCALL   supdrvIDC(uintptr_t uIOCtl, PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPDRVIDCREQHDR pReqHdr);
-int  VBOXCALL   supdrvInitDevExt(PSUPDRVDEVEXT pDevExt);
+int  VBOXCALL   supdrvInitDevExt(PSUPDRVDEVEXT pDevExt, size_t cbSession);
 void VBOXCALL   supdrvDeleteDevExt(PSUPDRVDEVEXT pDevExt);
 int  VBOXCALL   supdrvCreateSession(PSUPDRVDEVEXT pDevExt, bool fUser, PSUPDRVSESSION *ppSession);