netdev.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
* [PATCH] xen-netback: fix possible format string flaw
@ 2013-09-11  4:39 Kees Cook
  2013-09-11  7:18 ` Ian Campbell
  0 siblings, 1 reply; 3+ messages in thread
From: Kees Cook @ 2013-09-11  4:39 UTC (permalink / raw)
  To: linux-kernel; +Cc: Ian Campbell, xen-devel, netdev

This makes sure a format string cannot accidentally leak into the
kthread_run() call.

Signed-off-by: Kees Cook <keescook@chromium.org>
---
 drivers/net/xen-netback/interface.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c
index 625c6f4..77fee1d 100644
--- a/drivers/net/xen-netback/interface.c
+++ b/drivers/net/xen-netback/interface.c
@@ -406,7 +406,7 @@ int xenvif_connect(struct xenvif *vif, unsigned long tx_ring_ref,
 
 	init_waitqueue_head(&vif->wq);
 	vif->task = kthread_create(xenvif_kthread,
-				   (void *)vif, vif->dev->name);
+				   (void *)vif, "%s", vif->dev->name);
 	if (IS_ERR(vif->task)) {
 		pr_warn("Could not allocate kthread for %s\n", vif->dev->name);
 		err = PTR_ERR(vif->task);
-- 
1.7.9.5


-- 
Kees Cook
Chrome OS Security

^ permalink raw reply related	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2013-09-12 21:20 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-09-11  4:39 [PATCH] xen-netback: fix possible format string flaw Kees Cook
2013-09-11  7:18 ` Ian Campbell
2013-09-12 21:20   ` David Miller

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).