Please pull 'upstream-fixes' branch of wireless-2.6
From: John W. Linville <hidden>
Date: 2007-05-22 17:02:47
Subsystem:
networking drivers (wireless), the rest · Maintainers:
Johannes Berg, Linus Torvalds
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@tuxdriver.com