Linux kernel bug fix: iommu/arm-smmu: Check smmu->impl pointer before dereferencing
Subsystem: iommu (drivers/iommu/arm/arm-smmu/arm-smmu.c)
Bug type: null-deref, severity: unknown
Keywords: null pointer
Files changed: drivers/iommu/arm/arm-smmu/arm-smmu.c
Introduced by Thierry Reding on 2021-06-08 11:34:22 +0100; fixed by Will Deacon on 2021-06-15 19:35:46 +0100 (lifetime: 7 days)