linux-kernel - [PATCH 0/2] Fix ACS path checking

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Sat, 04 Aug 2012 12:08:46 -0600
From:	Alex Williamson <alex.williamson@...hat.com>
To:	joerg.roedel@....com, dwmw2@...radead.org
Cc:	iommu@...ts.linux-foundation.org, linux-pci@...r.kernel.org,
	linux-kernel@...r.kernel.org, dsahern@...il.com
Subject: [PATCH 0/2] Fix ACS path checking

David Ahern reported an oops caused by passing a NULL start device
to pci_acs_path_enabled().  This can happen when a bus is created
for sr-iov devices without an associated bridge.  To handle this,
skip over to the parent bus and look for a bridge there.  Continue
until we find something or reach the root bus.

This works on my system, but still needs to be tested by David.  I'd
like to get this in for 3.6-rc2.

Joerg, I notice that ACS isn't getting enabled on my AMD system on
3.6-rc1.  I'll investigate more, but mention it in case you get to
it first.  Thanks,

Alex

---

Alex Williamson (2):
      amd-iommu: Fix ACS path checking
      intel-iommu: Fix ACS path checking

 drivers/iommu/amd_iommu.c   |   25 ++++++++++++++++++++++---
 drivers/iommu/intel-iommu.c |   25 ++++++++++++++++++++++---
 2 files changed, 44 insertions(+), 6 deletions(-)
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/