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65835e0d5f
Refresh all patches. The removed patches were integrated upstream. This contains fixes for CVE-2020-3702 1. These patches (ath, ath9k, mac80211) were included in kernel versions since 4.14.245 and 4.19.205. They fix security vulnerability CVE-2020-3702 [1] similar to KrØØk, which was found by ESET [2]. Thank you Josef Schlehofer for reporting this problem. [1] https://nvd.nist.gov/vuln/detail/CVE-2020-3702 [2] https://www.welivesecurity.com/2020/08/06/beyond-kr00k-even-more-wifi-chips-vulnerable-eavesdropping/ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
113 lines
3.4 KiB
Diff
113 lines
3.4 KiB
Diff
From: Felix Fietkau <nbd@nbd.name>
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Date: Tue, 29 Jun 2021 13:25:09 +0200
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Subject: [PATCH] mac80211: fix starting aggregation sessions on mesh
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interfaces
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The logic for starting aggregation sessions was recently moved from minstrel_ht
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to mac80211, into the subif tx handler just after the sta lookup.
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Unfortunately this didn't work for mesh interfaces, since the sta lookup is
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deferred until a much later point in time on those.
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Fix this by also calling the aggregation check right after the deferred sta
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lookup.
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Fixes: 08a46c642001 ("mac80211: move A-MPDU session check from minstrel_ht to mac80211")
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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---
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--- a/net/mac80211/tx.c
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+++ b/net/mac80211/tx.c
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@@ -1159,6 +1159,29 @@ static bool ieee80211_tx_prep_agg(struct
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return queued;
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}
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+static void
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+ieee80211_aggr_check(struct ieee80211_sub_if_data *sdata,
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+ struct sta_info *sta,
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+ struct sk_buff *skb)
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+{
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+ struct rate_control_ref *ref = sdata->local->rate_ctrl;
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+ u16 tid;
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+
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+ if (!ref || !(ref->ops->capa & RATE_CTRL_CAPA_AMPDU_TRIGGER))
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+ return;
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+
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+ if (!sta || !sta->sta.ht_cap.ht_supported ||
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+ !sta->sta.wme || skb_get_queue_mapping(skb) == IEEE80211_AC_VO ||
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+ skb->protocol == sdata->control_port_protocol)
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+ return;
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+
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+ tid = skb->priority & IEEE80211_QOS_CTL_TID_MASK;
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+ if (likely(sta->ampdu_mlme.tid_tx[tid]))
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+ return;
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+
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+ ieee80211_start_tx_ba_session(&sta->sta, tid, 0);
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+}
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+
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/*
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* initialises @tx
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* pass %NULL for the station if unknown, a valid pointer if known
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@@ -1172,6 +1195,7 @@ ieee80211_tx_prepare(struct ieee80211_su
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struct ieee80211_local *local = sdata->local;
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struct ieee80211_hdr *hdr;
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struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
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+ bool aggr_check = false;
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int tid;
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memset(tx, 0, sizeof(*tx));
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@@ -1200,8 +1224,10 @@ ieee80211_tx_prepare(struct ieee80211_su
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} else if (tx->sdata->control_port_protocol == tx->skb->protocol) {
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tx->sta = sta_info_get_bss(sdata, hdr->addr1);
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}
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- if (!tx->sta && !is_multicast_ether_addr(hdr->addr1))
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+ if (!tx->sta && !is_multicast_ether_addr(hdr->addr1)) {
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tx->sta = sta_info_get(sdata, hdr->addr1);
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+ aggr_check = true;
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+ }
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}
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if (tx->sta && ieee80211_is_data_qos(hdr->frame_control) &&
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@@ -1211,8 +1237,12 @@ ieee80211_tx_prepare(struct ieee80211_su
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struct tid_ampdu_tx *tid_tx;
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tid = ieee80211_get_tid(hdr);
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-
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tid_tx = rcu_dereference(tx->sta->ampdu_mlme.tid_tx[tid]);
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+ if (!tid_tx && aggr_check) {
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+ ieee80211_aggr_check(sdata, tx->sta, skb);
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+ tid_tx = rcu_dereference(tx->sta->ampdu_mlme.tid_tx[tid]);
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+ }
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+
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if (tid_tx) {
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bool queued;
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@@ -3969,29 +3999,6 @@ void ieee80211_txq_schedule_start(struct
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}
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EXPORT_SYMBOL(ieee80211_txq_schedule_start);
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-static void
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-ieee80211_aggr_check(struct ieee80211_sub_if_data *sdata,
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- struct sta_info *sta,
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- struct sk_buff *skb)
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-{
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- struct rate_control_ref *ref = sdata->local->rate_ctrl;
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- u16 tid;
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-
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- if (!ref || !(ref->ops->capa & RATE_CTRL_CAPA_AMPDU_TRIGGER))
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- return;
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-
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- if (!sta || !sta->sta.ht_cap.ht_supported ||
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- !sta->sta.wme || skb_get_queue_mapping(skb) == IEEE80211_AC_VO ||
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- skb->protocol == sdata->control_port_protocol)
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- return;
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-
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- tid = skb->priority & IEEE80211_QOS_CTL_TID_MASK;
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- if (likely(sta->ampdu_mlme.tid_tx[tid]))
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- return;
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-
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- ieee80211_start_tx_ba_session(&sta->sta, tid, 0);
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-}
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-
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void __ieee80211_subif_start_xmit(struct sk_buff *skb,
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struct net_device *dev,
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u32 info_flags,
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