linux-kernel - [36/75] ath9k: fix max phy rate at rate control init

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 03 Jan 2012 14:33:09 -0800
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk, Paul Stewart <pstew@...gle.com>,
	Rajkumar Manoharan <rmanohar@....qualcomm.com>,
	"John W. Linville" <linville@...driver.com>
Subject: [36/75] ath9k: fix max phy rate at rate control init

3.1-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Rajkumar Manoharan <rmanohar@....qualcomm.com>

commit 10636bc2d60942254bda149827b922c41f4cb4af upstream.

The stations always chooses 1Mbps for all trasmitting frames,
whenever the AP is configured to lock the supported rates.
As the max phy rate is always set with the 4th from highest phy rate,
this assumption might be wrong if we have less than that. Fix that.

Cc: Paul Stewart <pstew@...gle.com>
Reported-by: Ajay Gummalla <agummalla@...gle.com>
Signed-off-by: Rajkumar Manoharan <rmanohar@....qualcomm.com>
Signed-off-by: John W. Linville <linville@...driver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/net/wireless/ath/ath9k/rc.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/net/wireless/ath/ath9k/rc.c
+++ b/drivers/net/wireless/ath/ath9k/rc.c
@@ -1250,7 +1250,9 @@ static void ath_rc_init(struct ath_softc
 
 	ath_rc_priv->max_valid_rate = k;
 	ath_rc_sort_validrates(rate_table, ath_rc_priv);
-	ath_rc_priv->rate_max_phy = ath_rc_priv->valid_rate_index[k-4];
+	ath_rc_priv->rate_max_phy = (k > 4) ?
+					ath_rc_priv->valid_rate_index[k-4] :
+					ath_rc_priv->valid_rate_index[k-1];
 	ath_rc_priv->rate_table = rate_table;
 
 	ath_dbg(common, ATH_DBG_CONFIG,


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/