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(parent: a5bcd1e) | patch
iommu: Check dev->iommu in dev_iommu_priv_get() before dereferencing it
authorJoerg Roedel <jroedel@suse.de>
Tue, 2 Feb 2021 14:54:19 +0000 (15:54 +0100)
committerJoerg Roedel <jroedel@suse.de>
Tue, 2 Feb 2021 14:57:23 +0000 (15:57 +0100)
commitbd07592ac3efb40345afa43a0e9ae94adf34f321
tree5120519342e2502df40889c08be37d997d114eadtree | snapshot
parenta5bcd1e766a4442962cb14550ab37793e515d3a2commit | diff
iommu: Check dev->iommu in dev_iommu_priv_get() before dereferencing it

The dev_iommu_priv_get() needs a similar check to
dev_iommu_fwspec_get() to make sure no NULL-ptr is dereferenced.

Fixes: 0f55370a8f2dd ("iommu/amd: Store dev_data as device iommu private data")
Cc: stable@vger.kernel.org # v5.8+
Link: https://lore.kernel.org/r/20210202145419.29143-1-joro@8bytes.org
Reference: https://bugzilla.kernel.org/show_bug.cgi?id=211241
Signed-off-by: Joerg Roedel <jroedel@suse.de>
include/linux/iommu.h diff | blob | history
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