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From: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
To: Kalle Valo <kvalo@codeaurora.org>
Cc: linux-kernel@vger.kernel.org, libertas-dev@lists.infradead.org,
	linux-wireless@vger.kernel.org, netdev@vger.kernel.org,
	Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Subject: [PATCH] libertas: fix possible NULL dereference
Date: Mon, 23 Nov 2015 18:02:02 +0530	[thread overview]
Message-ID: <1448281922-20382-1-git-send-email-sudipm.mukherjee@gmail.com> (raw)

We were dereferencing cmd first and checking for NULL later. Lets first
check for NULL.

Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org>
---
 drivers/net/wireless/marvell/libertas/cfg.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/marvell/libertas/cfg.c b/drivers/net/wireless/marvell/libertas/cfg.c
index 8317afd..e38ad1d 100644
--- a/drivers/net/wireless/marvell/libertas/cfg.c
+++ b/drivers/net/wireless/marvell/libertas/cfg.c
@@ -1108,7 +1108,7 @@ static int lbs_associate(struct lbs_private *priv,
 	size_t len, resp_ie_len;
 	int status;
 	int ret;
-	u8 *pos = &(cmd->iebuf[0]);
+	u8 *pos;
 	u8 *tmp;
 
 	lbs_deb_enter(LBS_DEB_CFG80211);
@@ -1117,6 +1117,7 @@ static int lbs_associate(struct lbs_private *priv,
 		ret = -ENOMEM;
 		goto done;
 	}
+	pos = &cmd->iebuf[0];
 
 	/*
 	 * cmd              50 00
-- 
1.9.1


             reply	other threads:[~2015-11-23 12:32 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-23 12:32 Sudip Mukherjee [this message]
2015-11-23 23:43 ` [PATCH] libertas: fix possible NULL dereference Andy Shevchenko
2015-11-24  7:32   ` Sudip Mukherjee
2015-12-07 18:03 ` Fixing full name in patchwork Kalle Valo
2015-12-08  4:54   ` Sudip Mukherjee
2015-12-08  7:54     ` Kalle Valo
2015-12-08  8:21       ` Sudip Mukherjee
2015-12-08  8:30         ` Kalle Valo

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