4.9-stable review patch. If anyone has any objections, please let me know.
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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 @@ -687,6 +687,8 @@ 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;