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From: <gregkh@linuxfoundation.org>
To: marc.zyngier@arm.com, christoffer.dall@linaro.org,
	gregkh@linuxfoundation.org, takahiro.akashi@linaro.org
Cc: <stable@vger.kernel.org>, <stable-commits@vger.kernel.org>
Subject: Patch "KVM: arm/arm64: vgic-its: Check result of allocation before use" has been added to the 4.14-stable tree
Date: Mon, 11 Dec 2017 22:53:31 +0100	[thread overview]
Message-ID: <1513029211243119@kroah.com> (raw)


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

    KVM: arm/arm64: vgic-its: Check result of allocation before use

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-arm-arm64-vgic-its-check-result-of-allocation-before-use.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 <stable@vger.kernel.org> know about it.


>From 686f294f2f1ae40705283dd413ca1e4c14f20f93 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <marc.zyngier@arm.com>
Date: Thu, 16 Nov 2017 17:58:18 +0000
Subject: KVM: arm/arm64: vgic-its: Check result of allocation before use

From: Marc Zyngier <marc.zyngier@arm.com>

commit 686f294f2f1ae40705283dd413ca1e4c14f20f93 upstream.

We miss a test against NULL after allocation.

Fixes: 6d03a68f8054 ("KVM: arm64: vgic-its: Turn device_id validation into generic ID validation")
Reported-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 virt/kvm/arm/vgic/vgic-its.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/virt/kvm/arm/vgic/vgic-its.c
+++ b/virt/kvm/arm/vgic/vgic-its.c
@@ -775,6 +775,8 @@ static int vgic_its_alloc_collection(str
 		return E_ITS_MAPC_COLLECTION_OOR;
 
 	collection = kzalloc(sizeof(*collection), GFP_KERNEL);
+	if (!collection)
+		return -ENOMEM;
 
 	collection->collection_id = coll_id;
 	collection->target_addr = COLLECTION_NOT_MAPPED;


Patches currently in stable-queue which might be from marc.zyngier@arm.com are

queue-4.14/arm-kvm-fix-vttbr_baddr_mask-bug_on-off-by-one.patch
queue-4.14/kvm-arm-arm64-vgic-its-check-result-of-allocation-before-use.patch
queue-4.14/kvm-arm-arm64-vgic-preserve-the-revious-read-from-the-pending-table.patch
queue-4.14/kvm-arm-arm64-vgic-irqfd-fix-msi-entry-allocation.patch
queue-4.14/bus-arm-cci-fix-use-of-smp_processor_id-in-preemptible-context.patch
queue-4.14/arm64-kvm-fix-vttbr_baddr_mask-bug_on-off-by-one.patch
queue-4.14/bus-arm-ccn-fix-use-of-smp_processor_id-in-preemptible-context.patch

                 reply	other threads:[~2017-12-11 21:55 UTC|newest]

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