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author | Marc Zyngier <marc.zyngier@arm.com> | 2017-11-16 20:58:18 +0300 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-12-14 11:28:14 +0300 |
commit | 7df3dbef3dd5bd1e0a7e1902aab7c5bdd8923a81 (patch) | |
tree | 7c62131aed0d07d17a680ab5d12fd067bbabdb65 /virt/kvm | |
parent | 42c3f4c55f10102b3e522ae99754a9a0ea41235d (diff) | |
download | linux-7df3dbef3dd5bd1e0a7e1902aab7c5bdd8923a81.tar.xz |
KVM: arm/arm64: vgic-its: Check result of allocation before use
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>
Diffstat (limited to 'virt/kvm')
-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 4660a7d04eea..6af22fe9e082 100644 --- 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(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; |