From: Dan Carpenter <dan.carpenter@oracle.com>
To: Alex Williamson <alex.williamson@redhat.com>
Cc: Frank Blaschka <frank.blaschka@de.ibm.com>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
kernel-janitors@vger.kernel.org
Subject: [patch] vfio: make an array larger
Date: Wed, 04 Nov 2015 13:26:24 +0000 [thread overview]
Message-ID: <20151104132624.GC20966@mwanda> (raw)
Smatch complains about a possible out of bounds error:
drivers/vfio/pci/vfio_pci_config.c:1241 vfio_cap_init()
error: buffer overflow 'pci_cap_length' 20 <= 20
Fix this by making the array larger.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
diff --git a/drivers/vfio/pci/vfio_pci_config.c b/drivers/vfio/pci/vfio_pci_config.c
index ff75ca3..001d48a 100644
--- a/drivers/vfio/pci/vfio_pci_config.c
+++ b/drivers/vfio/pci/vfio_pci_config.c
@@ -46,7 +46,7 @@
* 0: Removed from the user visible capability list
* FF: Variable length
*/
-static u8 pci_cap_length[] = {
+static u8 pci_cap_length[PCI_CAP_ID_MAX + 1] = {
[PCI_CAP_ID_BASIC] = PCI_STD_HEADER_SIZEOF, /* pci config header */
[PCI_CAP_ID_PM] = PCI_PM_SIZEOF,
[PCI_CAP_ID_AGP] = PCI_AGP_SIZEOF,
next reply other threads:[~2015-11-04 13:26 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-11-04 13:26 Dan Carpenter [this message]
2015-11-04 16:40 ` [patch] vfio: make an array larger Joe Perches
2015-11-04 18:23 ` Dan Carpenter
2015-11-04 16:54 ` Alex Williamson
2015-11-04 18:20 ` Dan Carpenter
2015-11-04 18:28 ` Alex Williamson
2015-11-09 12:24 ` [patch v2] vfio/pci: " Dan Carpenter
2015-11-10 19:03 ` Alex Williamson
2015-11-04 21:39 ` [patch] vfio: " walter harms
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20151104132624.GC20966@mwanda \
--to=dan.carpenter@oracle.com \
--cc=alex.williamson@redhat.com \
--cc=frank.blaschka@de.ibm.com \
--cc=kernel-janitors@vger.kernel.org \
--cc=kvm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).