[PATCH v2 0/2] iommu: Fix domain check on release (part 1/2)
From: Lu Baolu
Date: Thu Feb 29 2024 - 04:52:25 EST
This is a follow-up to the discussion thread here:
https://lore.kernel.org/linux-iommu/20240221154012.GC13491@xxxxxxxx/
It fixes a NULL pointer dereference issue in the Intel iommu driver and
strengthens the iommu core to possibly prevent similar failures in other
iommu drivers.
There are two parts of this topic:
[x] Introduce release_domain and fix a kernel NULL pointer dereference
issue in the intel iommu driver.
[ ] A follow-up series to cleanup intel iommu driver.
Best regards,
baolu
Change log:
v2:
- The scalable mode context entry should be removed in the release path
as it's not part of the blocking domain.
v1: https://lore.kernel.org/linux-iommu/20240223051302.177596-1-baolu.lu@xxxxxxxxxxxxxxx/
Lu Baolu (2):
iommu: Add static iommu_ops->release_domain
iommu/vt-d: Fix NULL domain on device release
include/linux/iommu.h | 1 +
drivers/iommu/intel/pasid.h | 1 +
drivers/iommu/intel/iommu.c | 31 +++-----------
drivers/iommu/intel/pasid.c | 83 +++++++++++++++++++++++++++++++++++++
drivers/iommu/iommu.c | 19 +++++++--
5 files changed, 106 insertions(+), 29 deletions(-)
--
2.34.1