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Date: Tue, 22 May 2007 11:17:51 -0400
From: "John W. Linville" <linville@...driver.com>
To: jeff@...zik.org
Cc: netdev@...r.kernel.org, linux-wireless@...r.kernel.org
Subject: Please pull 'upstream-fixes' branch of wireless-2.6
The following changes since commit 55b637c6a003a8c4850b41a2c2fd6942d8a7f530:
Linus Torvalds (1):
Linux v2.6.22-rc2
are found in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6.git upstream-fixes
Eugene Teo (2):
drivers/net/wireless/libertas/fw.c: fix use-before-check
drivers/net/wireless/libertas/rx.c: fix use-after-free
Florin Malita (1):
libertas: skb dereferenced after netif_rx
drivers/net/wireless/libertas/decl.h | 2 +-
drivers/net/wireless/libertas/fw.c | 14 +++++++++-----
drivers/net/wireless/libertas/rx.c | 24 +++++-------------------
3 files changed, 15 insertions(+), 25 deletions(-)
diff --git a/drivers/net/wireless/libertas/decl.h b/drivers/net/wireless/libertas/decl.h
index 606bdd0..dfe2764 100644
--- a/drivers/net/wireless/libertas/decl.h
+++ b/drivers/net/wireless/libertas/decl.h
@@ -46,7 +46,7 @@ u32 libertas_index_to_data_rate(u8 index);
u8 libertas_data_rate_to_index(u32 rate);
void libertas_get_fwversion(wlan_adapter * adapter, char *fwversion, int maxlen);
-int libertas_upload_rx_packet(wlan_private * priv, struct sk_buff *skb);
+void libertas_upload_rx_packet(wlan_private * priv, struct sk_buff *skb);
/** The proc fs interface */
int libertas_process_rx_command(wlan_private * priv);
diff --git a/drivers/net/wireless/libertas/fw.c b/drivers/net/wireless/libertas/fw.c
index 441123c..5c63c9b 100644
--- a/drivers/net/wireless/libertas/fw.c
+++ b/drivers/net/wireless/libertas/fw.c
@@ -333,18 +333,22 @@ static void command_timer_fn(unsigned long data)
unsigned long flags;
ptempnode = adapter->cur_cmd;
+ if (ptempnode == NULL) {
+ lbs_pr_debug(1, "PTempnode Empty\n");
+ return;
+ }
+
cmd = (struct cmd_ds_command *)ptempnode->bufvirtualaddr;
+ if (!cmd) {
+ lbs_pr_debug(1, "cmd is NULL\n");
+ return;
+ }
lbs_pr_info("command_timer_fn fired (%x)\n", cmd->command);
if (!adapter->fw_ready)
return;
- if (ptempnode == NULL) {
- lbs_pr_debug(1, "PTempnode Empty\n");
- return;
- }
-
spin_lock_irqsave(&adapter->driver_lock, flags);
adapter->cur_cmd = NULL;
spin_unlock_irqrestore(&adapter->driver_lock, flags);
diff --git a/drivers/net/wireless/libertas/rx.c b/drivers/net/wireless/libertas/rx.c
index d17924f..96619a3 100644
--- a/drivers/net/wireless/libertas/rx.c
+++ b/drivers/net/wireless/libertas/rx.c
@@ -136,7 +136,7 @@ static void wlan_compute_rssi(wlan_private * priv, struct rxpd *p_rx_pd)
LEAVE();
}
-int libertas_upload_rx_packet(wlan_private * priv, struct sk_buff *skb)
+void libertas_upload_rx_packet(wlan_private * priv, struct sk_buff *skb)
{
lbs_pr_debug(1, "skb->data=%p\n", skb->data);
@@ -148,8 +148,6 @@ int libertas_upload_rx_packet(wlan_private * priv, struct sk_buff *skb)
skb->ip_summed = CHECKSUM_UNNECESSARY;
netif_rx(skb);
-
- return 0;
}
/**
@@ -269,15 +267,11 @@ int libertas_process_rxed_packet(wlan_private * priv, struct sk_buff *skb)
wlan_compute_rssi(priv, p_rx_pd);
lbs_pr_debug(1, "RX Data: size of actual packet = %d\n", skb->len);
- if (libertas_upload_rx_packet(priv, skb)) {
- lbs_pr_debug(1, "RX error: libertas_upload_rx_packet"
- " returns failure\n");
- ret = -1;
- goto done;
- }
priv->stats.rx_bytes += skb->len;
priv->stats.rx_packets++;
+ libertas_upload_rx_packet(priv, skb);
+
ret = 0;
done:
LEAVE();
@@ -438,22 +432,14 @@ static int process_rxed_802_11_packet(wlan_private * priv, struct sk_buff *skb)
wlan_compute_rssi(priv, prxpd);
lbs_pr_debug(1, "RX Data: size of actual packet = %d\n", skb->len);
-
- if (libertas_upload_rx_packet(priv, skb)) {
- lbs_pr_debug(1, "RX error: libertas_upload_rx_packet "
- "returns failure\n");
- ret = -1;
- goto done;
- }
-
priv->stats.rx_bytes += skb->len;
priv->stats.rx_packets++;
+ libertas_upload_rx_packet(priv, skb);
+
ret = 0;
done:
LEAVE();
- skb->protocol = __constant_htons(0x0019); /* ETH_P_80211_RAW */
-
return (ret);
}
--
John W. Linville
linville@...driver.com
-
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