From: Olaf Hering <olaf@aepfle.de>
To: xen-devel@lists.xensource.com
Subject: [PATCH] xenbus: fix possible crash in xenbus_uevent_backend
Date: Mon, 18 Jul 2011 14:40:59 +0200 [thread overview]
Message-ID: <20110718124059.GA7893@aepfle.de> (raw)
Fix possible NULL pointer crash in xenbus_uevent_backend().
The variable to check for should probably be bus.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Index: linux-3.0-rc7-xen-kexec/drivers/xen/xenbus/xenbus_probe_backend.c
===================================================================
--- linux-3.0-rc7-xen-kexec.orig/drivers/xen/xenbus/xenbus_probe_backend.c
+++ linux-3.0-rc7-xen-kexec/drivers/xen/xenbus/xenbus_probe_backend.c
@@ -104,7 +104,7 @@ static int xenbus_uevent_backend(struct
xdev = to_xenbus_device(dev);
bus = container_of(xdev->dev.bus, struct xen_bus_type, bus);
- if (xdev == NULL)
+ if (bus == NULL)
return -ENODEV;
/* stuff we want to pass to /sbin/hotplug */
Index: linux-3.0-rc7-xen-kexec/include/linux/compiler.h
next reply other threads:[~2011-07-18 12:40 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-18 12:40 Olaf Hering [this message]
2011-07-18 13:11 ` [PATCH] xenbus: fix possible crash in xenbus_uevent_backend Ian Campbell
2011-07-18 13:21 ` Jan Beulich
2011-07-18 13:26 ` Ian Campbell
2011-07-18 15:02 ` Olaf Hering
2011-07-18 13:18 ` Jan Beulich
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