openwrt-cghmn-mt300n/package/kernel/mac80211/patches/subsys/372-mac80211-set-sk_pacing_shift-for-802.3-txpath.patch
Hauke Mehrtens 97bc59a5c0 mac80211: Update to backports-5.10.68
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>
2021-09-22 22:24:00 +02:00

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Diff

From: Lorenzo Bianconi <lorenzo@kernel.org>
Date: Mon, 8 Mar 2021 23:01:49 +0100
Subject: [PATCH] mac80211: set sk_pacing_shift for 802.3 txpath
Similar to 802.11 txpath, set socket sk_pacing_shift for 802.3 tx path.
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -4193,6 +4193,9 @@ static bool ieee80211_tx_8023(struct iee
unsigned long flags;
int q = info->hw_queue;
+ if (sta)
+ sk_pacing_shift_update(skb->sk, local->hw.tx_sk_pacing_shift);
+
if (ieee80211_queue_skb(local, sdata, sta, skb))
return true;