[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [PATCH] IOMMU: make domctl handler tolerate NULL domain

To: Jan Beulich <jbeulich@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
From: "Durrant, Paul" <xadimgnik@xxxxxxxxx>
Date: Tue, 19 Apr 2022 11:06:38 +0100
Cc: Paul Durrant <paul@xxxxxxx>
Delivery-date: Tue, 19 Apr 2022 10:06:57 +0000
List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On 19/04/2022 10:39, Jan Beulich wrote:

Besides the reporter's issue of hitting a NULL deref when !CONFIG_GDBSX,
XEN_DOMCTL_test_assign_device can legitimately end up having NULL passed
here, when the domctl was passed DOMID_INVALID.

Fixes: 71e617a6b8f6 ("use is_iommu_enabled() where appropriate...")
Reported-by: Cheyenne Wills <cheyenne.wills@xxxxxxxxx>
Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>


Reviewed-by: Paul Durrant <paul@xxxxxxx>

References:
- [PATCH] IOMMU: make domctl handler tolerate NULL domain
  - From: Jan Beulich

Prev by Date: [PATCH] IOMMU: make domctl handler tolerate NULL domain
Next by Date: Re: [PATCH] IOMMU: make domctl handler tolerate NULL domain
Previous by thread: [PATCH] IOMMU: make domctl handler tolerate NULL domain
Next by thread: Re: [PATCH] IOMMU: make domctl handler tolerate NULL domain
Index(es):
- Date
- Thread

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.