Patch "ARM: KVM: Fix size check in __coherent_cache_guest_page" has been added to the 3.19-stable tree

Patch "ARM: KVM: Fix size check in __coherent_cache_guest_page" has been added to the 3.19-stable tree

[gregkh]

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

    ARM: KVM: Fix size check in __coherent_cache_guest_page

to the 3.19-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:
     arm-kvm-fix-size-check-in-__coherent_cache_guest_page.patch
and it can be found in the queue-3.19 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From a050dfb21cc22ac0c666d52531040c1bc48184cc Mon Sep 17 00:00:00 2001
From: Jan Kiszka <jan.kiszka@siemens.com>
Date: Sat, 7 Feb 2015 22:21:20 +0100
Subject: ARM: KVM: Fix size check in __coherent_cache_guest_page

From: Jan Kiszka <jan.kiszka@siemens.com>

commit a050dfb21cc22ac0c666d52531040c1bc48184cc upstream.

The check is supposed to catch page-unaligned sizes, not the inverse.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/arm/include/asm/kvm_mmu.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/arch/arm/include/asm/kvm_mmu.h
+++ b/arch/arm/include/asm/kvm_mmu.h
@@ -186,7 +186,7 @@ static inline void __coherent_cache_gues
 
 	bool need_flush = !vcpu_has_cache_enabled(vcpu) || ipa_uncached;
 
-	VM_BUG_ON(size & PAGE_MASK);
+	VM_BUG_ON(size & ~PAGE_MASK);
 
 	if (!need_flush && !icache_is_pipt())
 		goto vipt_cache;


Patches currently in stable-queue which might be from jan.kiszka@siemens.com are

queue-3.19/arm-kvm-fix-size-check-in-__coherent_cache_guest_page.patch