[PATCH 1/6] mac80211: mesh: fix potentially unaligned access
From: Johannes Berg <johannes@sipsolutions.net>
Date: 2021-09-20 13:31:38
Subsystem:
mac80211, the rest · Maintainers:
Johannes Berg, Linus Torvalds
From: Johannes Berg <redacted>
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 <redacted>
---
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