Red Hat Bugzilla – Bug 218003
pci: Unaligned config read/write overflow
Last modified: 2007-11-30 17:07:38 EST
Changesets 12586+12649 from xen-unstable.
[QEMU] pci: Unaligned config read/write overflow
The default config read/write handlers allows a 4-byte read/write at
address 255. This can clobber the field after the config area. This
happens to be the PCIBus pointer in the PCIDevice structure.
This patch stops this from reducing the read/write to the (largest
multiple of 2) number of bytes within the config area.
Signed-off-by: Herbert Xu <firstname.lastname@example.org>
[QEMU] Simpler workaround for guest writes to PCI config
space that extend past byte 0xff.
Signed-off-by: Keir Fraser <email@example.com>
QE ack for RHEL5.
A package has been built which should help the problem described in
this bug report. This report is therefore being closed with a resolution
of CURRENTRELEASE. You may reopen this bug report if the solution does
not work for you.