Skip to contentSkip to conversation

Patch "KVM: VMX: fix page leak in hardware_setup()" has been added to the 4.14-stable tree

PATCH [email protected] 1 participant 1 message Feb 23, 2018

Subsystems (3)
Stable branch x86 KVM x86
lore
Share & tools
lore

[email protected]

author maintainer Applied
#0 lore raw

This is a note to let you know that I've just added the patch titled

KVM: VMX: fix page leak in hardware_setup()

to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
kvm-vmx-fix-page-leak-in-hardware_setup.patch
and it can be found in the queue-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

Quoted 1 line

From foo@baz Fri Feb 23 11:45:09 CET 2018

From: Jim Mattson <[email protected]>
Date: Fri, 1 Dec 2017 09:57:56 -0800
Subject: KVM: VMX: fix page leak in hardware_setup()

From: Jim Mattson <[email protected]>

[ Upstream commit 2895db67b01cb875457c9c3f30a14723b6b5dfd5 ]

vmx_io_bitmap_b should not be allocated twice.

Fixes 23611332938d ("KVM: VMX: refactor setup of global page-sized bitmaps")
Signed-off-by Jim Mattson <[email protected]>
Reviewed-by Krish Sadhukhan <[email protected]>
Reviewed-by David Hildenbrand <[email protected]>
Signed-off-by Radim Krčmář <[email protected]>
Signed-off-by Sasha Levin <[email protected]>
Signed-off-by Greg Kroah-Hartman <[email protected]>
---
 arch/x86/kvm/vmx.c |    1 -
 1 file changed, 1 deletion(-)
arch/x86/kvm/vmx.c +0 -1
@@ -6950,7 +6950,6 @@ static __init int hardware_setup(void)
 			goto out;
 	}
 
-	vmx_io_bitmap_b = (unsigned long *)__get_free_page(GFP_KERNEL);
 	memset(vmx_vmread_bitmap, 0xff, PAGE_SIZE);
 	memset(vmx_vmwrite_bitmap, 0xff, PAGE_SIZE);

Patches currently in stable-queue which might be from [email protected] are

queue-4.14/kvm-x86-check-input-paging-mode-when-cs.l-is-set.patch queue-4.14/kvm-vmx-fix-page-leak-in-hardware_setup.patch