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[Qemu-devel] [6017] Correctly initialize msr list in KVM
From: |
Anthony Liguori |
Subject: |
[Qemu-devel] [6017] Correctly initialize msr list in KVM |
Date: |
Sat, 13 Dec 2008 20:41:58 +0000 |
Revision: 6017
http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=6017
Author: aliguori
Date: 2008-12-13 20:41:58 +0000 (Sat, 13 Dec 2008)
Log Message:
-----------
Correctly initialize msr list in KVM
I believe this was spotted by Gerd Hoffman but I can't find his patch
now. This will cause very subtle corruption on the heap because we
don't allocate the appropriately sized buffer.
Signed-off-by: Anthony Liguori <address@hidden>
Modified Paths:
--------------
trunk/target-i386/kvm.c
Modified: trunk/target-i386/kvm.c
===================================================================
--- trunk/target-i386/kvm.c 2008-12-13 19:27:22 UTC (rev 6016)
+++ trunk/target-i386/kvm.c 2008-12-13 20:41:58 UTC (rev 6017)
@@ -90,11 +90,11 @@
/* Obtain MSR list from KVM. These are the MSRs that we must
* save/restore */
+ msr_list.nmsrs = 0;
ret = kvm_ioctl(env->kvm_state, KVM_GET_MSR_INDEX_LIST, &msr_list);
if (ret < 0)
return 0;
- msr_list.nmsrs = 0;
kvm_msr_list = qemu_mallocz(sizeof(msr_list) +
msr_list.nmsrs *
sizeof(msr_list.indices[0]));
if (kvm_msr_list == NULL)
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