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ath11k: fix memory leak when peer lookup fails in dp rx path

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In the DP RX path, fast_rx is set to true by default.
Currently, if peer lookup fails in ath11k_dp_rx_h_mpdu(), the SKB is not sent
to the network stack or mac80211 because fast_rx remains true. This results
in a memory leak.

Fix this by setting fast_rx = false when peer lookup fails in
ath11k_dp_rx_h_mpdu(), ensuring the SKB is properly delivered to mac80211
via ath11k_dp_rx_deliver_msdu().

Fixes: WIFI-15202

Signed-off-by: Marek Kwaczynski <marek@shasta.cloud>
This commit is contained in:
Oleksandr Mazur 2025-11-07 13:15:27 +00:00 committed by John Crispin
parent 05b5bae4aa
commit a81fe1274b
1 changed files with 22 additions and 0 deletions
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22
feeds/ipq807x_v5.4/mac80211/patches/pending/a-101-mac80211-clean-fast-rx.patch Normal file
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@ -0,0 +1,22 @@
Index: backports-20210222_001-5.4.164-b157d2276/drivers/net/wireless/ath/ath11k/dp_rx.c
===================================================================
--- backports-20210222_001-5.4.164-b157d2276.orig/drivers/net/wireless/ath/ath11k/dp_rx.c
+++ backports-20210222_001-5.4.164-b157d2276/drivers/net/wireless/ath/ath11k/dp_rx.c
@@ -2847,8 +2847,6 @@ static void ath11k_dp_rx_h_mpdu(struct a
}
}
- *fast_rx = false;
-
if (rxcb->is_mcbc)
enctype = peer->sec_type_grp;
else
@@ -2858,6 +2856,8 @@ static void ath11k_dp_rx_h_mpdu(struct a
}
spin_unlock_bh(&ar->ab->base_lock);
+ *fast_rx = false;
+
rx_attention = ath11k_dp_rx_get_attention(ar->ab, rx_desc);
err_bitmap = ath11k_dp_rx_h_attn_mpdu_err(rx_attention);
if (enctype != HAL_ENCRYPT_TYPE_OPEN && !err_bitmap)