From: Jan Beulich <jbeulich@suse.com>
Date: Wed, 6 Feb 2013 15:30:38 +0000 (-0500)
Subject: xen-pciback: rate limit error messages from xen_pcibk_enable_msi{,x}()
X-Git-Tag: v3.2.40~33
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ecb1d58c0722e593e50317a63294a52ac2308ace;p=pandora-kernel.git

xen-pciback: rate limit error messages from xen_pcibk_enable_msi{,x}()

commit 51ac8893a7a51b196501164e645583bf78138699 upstream.

... as being guest triggerable (e.g. by invoking
XEN_PCI_OP_enable_msi{,x} on a device not being MSI/MSI-X capable).

This is CVE-2013-0231 / XSA-43.

Also make the two messages uniform in both their wording and severity.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
[bwh: Backported to 3.2: add #include <linux/ratelimited.h>, needed by
 printk_ratelimited()]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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