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From: Dan Carpenter <dan.carpenter@oracle.com>
To: Brett Rudley <brudley@broadcom.com>
Cc: Arend van Spriel <arend@broadcom.com>,
	"Franky (Zhenhui) Lin" <frankyl@broadcom.com>,
	Hante Meuleman <meuleman@broadcom.com>,
	"John W. Linville" <linville@tuxdriver.com>,
	Pieter-Paul Giesberts <pieterpg@broadcom.com>,
	Piotr Haber <phaber@broadcom.com>,
	linux-wireless@vger.kernel.org, brcm80211-dev-list@broadcom.com,
	kernel-janitors@vger.kernel.org
Subject: [patch] brcmfmac: move dereference under check for NULL
Date: Thu, 06 Jun 2013 10:55:56 +0000	[thread overview]
Message-ID: <20130606105556.GD12953@debian> (raw)

skb_pull() dereferences the skb parameter.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index ea37bd4..c35296f 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -861,9 +861,9 @@ static bool brcmf_fws_tim_update(struct brcmf_fws_info *fws,
 		      BRCMF_FWS_TYPE_PENDING_TRAFFIC_BMP_LEN + 2 +
 		      4 + fws->drvr->hdrlen;
 		skb = brcmu_pkt_buf_get_skb(len);
-		skb_pull(skb, len);
 		if (skb = NULL)
 			return false;
+		skb_pull(skb, len);
 		skcb = brcmf_skbcb(skb);
 		skcb->mac = entry;
 		skcb->state = BRCMF_FWS_SKBSTATE_TIM;

WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com>
To: Brett Rudley <brudley@broadcom.com>
Cc: Arend van Spriel <arend@broadcom.com>,
	"Franky (Zhenhui) Lin" <frankyl@broadcom.com>,
	Hante Meuleman <meuleman@broadcom.com>,
	"John W. Linville" <linville@tuxdriver.com>,
	Pieter-Paul Giesberts <pieterpg@broadcom.com>,
	Piotr Haber <phaber@broadcom.com>,
	linux-wireless@vger.kernel.org, brcm80211-dev-list@broadcom.com,
	kernel-janitors@vger.kernel.org
Subject: [patch] brcmfmac: move dereference under check for NULL
Date: Thu, 6 Jun 2013 13:55:56 +0300	[thread overview]
Message-ID: <20130606105556.GD12953@debian> (raw)

skb_pull() dereferences the skb parameter.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index ea37bd4..c35296f 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -861,9 +861,9 @@ static bool brcmf_fws_tim_update(struct brcmf_fws_info *fws,
 		      BRCMF_FWS_TYPE_PENDING_TRAFFIC_BMP_LEN + 2 +
 		      4 + fws->drvr->hdrlen;
 		skb = brcmu_pkt_buf_get_skb(len);
-		skb_pull(skb, len);
 		if (skb == NULL)
 			return false;
+		skb_pull(skb, len);
 		skcb = brcmf_skbcb(skb);
 		skcb->mac = entry;
 		skcb->state = BRCMF_FWS_SKBSTATE_TIM;

             reply	other threads:[~2013-06-06 10:55 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-06-06 10:55 Dan Carpenter [this message]
2013-06-06 10:55 ` [patch] brcmfmac: move dereference under check for NULL Dan Carpenter
2013-06-06 11:46 ` Arend van Spriel
2013-06-06 11:46   ` Arend van Spriel

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