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From: Johannes Berg <>
Cc: Johannes Berg <>,
	Ilan Peer <>,
	Miriam Rachel Korenblit <>
Subject: [PATCH wireless 8/8] wifi: mac80211: fix unaligned le16 access
Date: Thu, 18 Apr 2024 10:52:26 +0200	[thread overview]
Message-ID: <20240418105220.356788ba0045.I2b3cdb3644e205d5bb10322c345c0499171cf5d2@changeid> (raw)
In-Reply-To: <20240418105220.90df97557702.I05d2228ce85c203b9f2d6da8538cc16dce46752a@changeid>

From: Johannes Berg <>

The AP removal timer field need not be aligned, so the
code shouldn't access it directly, but use unaligned
loads. Use get_unaligned_le16(), which even is shorter
than the current code since it doesn't need a cast.

Fixes: 8eb8dd2ffbbb ("wifi: mac80211: Support link removal using Reconfiguration ML element")
Reviewed-by: Ilan Peer <>
Reviewed-by: Miriam Rachel Korenblit <>
Signed-off-by: Johannes Berg <>
 net/mac80211/mlme.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 6f0880ec89da..3bbb216a0fc8 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -5819,7 +5819,7 @@ static void ieee80211_ml_reconfiguration(struct ieee80211_sub_if_data *sdata,
 		if (control &
-			link_removal_timeout[link_id] = le16_to_cpu(*(__le16 *)pos);
+			link_removal_timeout[link_id] = get_unaligned_le16(pos);
 	removed_links &= sdata->vif.valid_links;

      parent reply	other threads:[~2024-04-18  8:52 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-18  8:52 [PATCH wireless 1/8] wifi: mac80211: fix idle calculation with multi-link Johannes Berg
2024-04-18  8:52 ` [PATCH wireless 2/8] wifi: mac80211: mlme: re-parse with correct mode Johannes Berg
2024-04-18  8:52 ` [PATCH wireless 3/8] wifi: mac80211: mlme: fix memory leak Johannes Berg
2024-04-18  8:52 ` [PATCH wireless 4/8] wifi: mac80211: mlme: re-parse if AP mode is less than client Johannes Berg
2024-04-18  8:52 ` [PATCH wireless 5/8] wifi: nl80211: don't free NULL coalescing rule Johannes Berg
2024-04-18  8:52 ` [PATCH wireless 6/8] wifi: mac80211_hwsim: init peer measurement result Johannes Berg
2024-04-18  8:52 ` [PATCH wireless 7/8] wifi: mac80211: remove link before AP Johannes Berg
2024-04-18  8:52 ` Johannes Berg [this message]

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