diff options
| author | Jerry Snitselaar <[email protected]> | 2020-01-21 17:34:26 -0700 |
|---|---|---|
| committer | Joerg Roedel <[email protected]> | 2020-01-24 15:23:50 +0100 |
| commit | bf708cfb2f4811d1948a88c41ab96587e84ad344 (patch) | |
| tree | 99cf8b28a883c1d690713298386af93bc158c88f /lib/mpi/mpi-cmp.c | |
| parent | def9d2780727cec3313ed3522d0123158d87224d (diff) | |
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 <[email protected]>
Cc: Lu Baolu <[email protected]>
Cc: David Woodhouse <[email protected]>
Cc: [email protected] # 5.3+
Cc: [email protected]
Fixes: ae23bfb68f28 ("iommu/vt-d: Detach domain before using a private one")
Signed-off-by: Jerry Snitselaar <[email protected]>
Acked-by: Lu Baolu <[email protected]>
Signed-off-by: Joerg Roedel <[email protected]>
Diffstat (limited to 'lib/mpi/mpi-cmp.c')
0 files changed, 0 insertions, 0 deletions