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| author | Jerry Snitselaar <jsnitsel@redhat.com> | 2020-01-22 03:34:26 +0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2020-01-24 17:23:50 +0300 |
| commit | bf708cfb2f4811d1948a88c41ab96587e84ad344 (patch) | |
| tree | 99cf8b28a883c1d690713298386af93bc158c88f /drivers/gpio | |
| parent | def9d2780727cec3313ed3522d0123158d87224d (diff) | |
| download | linux-bf708cfb2f4811d1948a88c41ab96587e84ad344.tar.xz | |
iommu/vt-d: Call __dmar_remove_one_dev_info with valid pointer
It is possible for archdata.iommu to be set to
DEFER_DEVICE_DOMAIN_INFO or DUMMY_DEVICE_DOMAIN_INFO so check for
those values before calling __dmar_remove_one_dev_info. Without a
check it can result in a null pointer dereference. This has been seen
while booting a kdump kernel on an HP dl380 gen9.
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Lu Baolu <baolu.lu@linux.intel.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: stable@vger.kernel.org # 5.3+
Cc: linux-kernel@vger.kernel.org
Fixes: ae23bfb68f28 ("iommu/vt-d: Detach domain before using a private one")
Signed-off-by: Jerry Snitselaar <jsnitsel@redhat.com>
Acked-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/gpio')
0 files changed, 0 insertions, 0 deletions