Search Linux Wireless

[PATCH 1/6] mac80211: mesh: fix potentially unaligned access

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Johannes Berg <johannes.berg@xxxxxxxxx>

The pointer here points directly into the frame, so the
access is potentially unaligned. Use get_unaligned_le16
to avoid that.

Fixes: 3f52b7e328c5 ("mac80211: mesh power save basics")
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
---
 net/mac80211/mesh_ps.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/mac80211/mesh_ps.c b/net/mac80211/mesh_ps.c
index 204830a55240..eda6a25a7a20 100644
--- a/net/mac80211/mesh_ps.c
+++ b/net/mac80211/mesh_ps.c
@@ -588,7 +588,7 @@ void ieee80211_mps_frame_release(struct sta_info *sta,
 
 	/* only transmit to PS STA with announced, non-zero awake window */
 	if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
-	    (!elems->awake_window || !le16_to_cpu(*elems->awake_window)))
+	    (!elems->awake_window || !get_unaligned_le16(elems->awake_window)))
 		return;
 
 	if (!test_sta_flag(sta, WLAN_STA_MPSP_OWNER))
-- 
2.31.1




[Index of Archives]     [Linux Host AP]     [ATH6KL]     [Linux Wireless Personal Area Network]     [Linux Bluetooth]     [Wireless Regulations]     [Linux Netdev]     [Kernel Newbies]     [Linux Kernel]     [IDE]     [Git]     [Netfilter]     [Bugtraq]     [Yosemite Hiking]     [MIPS Linux]     [ARM Linux]     [Linux RAID]

  Powered by Linux