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| author | Marc Zyngier <marc.zyngier@arm.com> | 2017-11-16 17:58:18 +0000 |
|---|---|---|
| committer | Christoffer Dall <christoffer.dall@linaro.org> | 2017-11-29 16:46:15 +0100 |
| commit | 686f294f2f1ae40705283dd413ca1e4c14f20f93 (patch) | |
| tree | 6b81fe604cd84c8c4dbe6cc9f5c2fef6bdf3ffdd | |
| parent | 64afe6e9eb4841f35317da4393de21a047a883b3 (diff) | |
| download | linux-686f294f2f1ae40705283dd413ca1e4c14f20f93.tar.gz linux-686f294f2f1ae40705283dd413ca1e4c14f20f93.tar.bz2 linux-686f294f2f1ae40705283dd413ca1e4c14f20f93.zip | |
KVM: arm/arm64: vgic-its: Check result of allocation before use
We miss a test against NULL after allocation.
Fixes: 6d03a68f8054 ("KVM: arm64: vgic-its: Turn device_id validation into generic ID validation")
Cc: stable@vger.kernel.org # 4.8
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>
| -rw-r--r-- | virt/kvm/arm/vgic/vgic-its.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/virt/kvm/arm/vgic/vgic-its.c b/virt/kvm/arm/vgic/vgic-its.c index cb2d0a2dbe5a..8e633bd9cc1e 100644 --- a/virt/kvm/arm/vgic/vgic-its.c +++ b/virt/kvm/arm/vgic/vgic-its.c @@ -821,6 +821,8 @@ static int vgic_its_alloc_collection(struct vgic_its *its, 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; |