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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>
37 lines
1.2 KiB
Diff
37 lines
1.2 KiB
Diff
From: Felix Fietkau <nbd@nbd.name>
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Date: Sat, 14 May 2016 14:51:02 +0200
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Subject: [PATCH] Revert "ath9k: interpret requested txpower in EIRP
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domain"
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This reverts commit 71f5137bf010c6faffab50c0ec15374c59c4a411.
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---
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--- a/drivers/net/wireless/ath/ath9k/hw.c
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+++ b/drivers/net/wireless/ath/ath9k/hw.c
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@@ -2979,7 +2979,8 @@ void ath9k_hw_apply_txpower(struct ath_h
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{
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struct ath_regulatory *reg = ath9k_hw_regulatory(ah);
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struct ieee80211_channel *channel;
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- int chan_pwr, new_pwr;
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+ int chan_pwr, new_pwr, max_gain;
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+ int ant_gain, ant_reduction = 0;
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u16 ctl = NO_CTL;
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if (!chan)
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@@ -2991,9 +2992,14 @@ void ath9k_hw_apply_txpower(struct ath_h
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channel = chan->chan;
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chan_pwr = min_t(int, channel->max_power * 2, MAX_COMBINED_POWER);
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new_pwr = min_t(int, chan_pwr, reg->power_limit);
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+ max_gain = chan_pwr - new_pwr + channel->max_antenna_gain * 2;
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+
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+ ant_gain = get_antenna_gain(ah, chan);
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+ if (ant_gain > max_gain)
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+ ant_reduction = ant_gain - max_gain;
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ah->eep_ops->set_txpower(ah, chan, ctl,
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- get_antenna_gain(ah, chan), new_pwr, test);
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+ ant_reduction, new_pwr, test);
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}
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void ath9k_hw_set_txpowerlimit(struct ath_hw *ah, u32 limit, bool test)
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