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(parent: 1048ba8) | 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)
commit4c9fb5d9140802db4db9f66c23887f43174e113c
tree5120519342e2502df40889c08be37d997d114eadtree | snapshot
parent1048ba83fb1c00cd24172e23e8263972f6b5d9accommit | 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: 05a0542b456e1 ("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
Domain: System / Kernel;