From: Kees Cook <keescook@chromium.org>
To: linux-kernel@vger.kernel.org
Cc: "John W. Linville" <linville@tuxdriver.com>,
Fariya Fatima <fariyaf@gmail.com>,
linux-wireless@vger.kernel.org, netdev@vger.kernel.org
Subject: [PATCH] rsi: avoid format string leak to thread name
Date: Thu, 22 May 2014 11:48:41 -0700 [thread overview]
Message-ID: <20140522184841.GA8625@www.outflux.net> (raw)
Since the rsi_create_kthread interface does not include any format
string arguments, make sure that the resulting thread name can never
accidentally process the name as a format string.
Signed-off-by: Kees Cook <keescook@chromium.org>
---
drivers/net/wireless/rsi/rsi_common.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/rsi/rsi_common.h b/drivers/net/wireless/rsi/rsi_common.h
index f2f70784d4ad..d3fbe33d2324 100644
--- a/drivers/net/wireless/rsi/rsi_common.h
+++ b/drivers/net/wireless/rsi/rsi_common.h
@@ -63,7 +63,7 @@ static inline int rsi_create_kthread(struct rsi_common *common,
u8 *name)
{
init_completion(&thread->completion);
- thread->task = kthread_run(func_ptr, common, name);
+ thread->task = kthread_run(func_ptr, common, "%s", name);
if (IS_ERR(thread->task))
return (int)PTR_ERR(thread->task);
--
1.7.9.5
--
Kees Cook
Chrome OS Security
reply other threads:[~2014-05-22 18:48 UTC|newest]
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