openwrt/package/kernel/mac80211/patches/subsys/331-wifi-mac80211-flush-queues-on-STA-removal.patch
Hauke Mehrtens 323e249ce8 mac80211: Update to version 6.1.97-1
This updates mac80211 to version 6.1.97-1. This code is based on Linux
6.1.97 and contains all fixes included in the upstream wireless
subsystem from that kernel version. This includes many bugfixes and also
some security fixes.

The removed patches are already integrated in upstream Linux 6.1.97 or
in backports.

The following patches were integrated in upstream Linux:
   ath11k/0013-wifi-ath11k-synchronize-ath11k_mac_he_gi_to_nl80211_.patch
   ath11k/0035-wifi-ath11k-Use-platform_get_irq-to-get-the-interrup.patch
   ath11k/0036-wifi-ath11k-fix-SAC-bug-on-peer-addition-with-sta-ba.patch
   ath11k/0047-wifi-ath11k-fix-deinitialization-of-firmware-resourc.patch
   ath11k/0053-wifi-ath11k-fix-writing-to-unintended-memory-region.patch
   ath11k/0060-wifi-ath11k-Ignore-frags-from-uninitialized-peer-in-.patch
   ath11k/0065-wifi-ath11k-fix-tx-status-reporting-in-encap-offload.patch
   ath11k/0067-wifi-ath11k-Fix-SKB-corruption-in-REO-destination-ri.patch
   ath11k/0069-wifi-ath11k-fix-registration-of-6Ghz-only-phy-withou.patch
   ath11k/0080-wifi-ath11k-add-support-default-regdb-while-searchin.patch
   ath11k/0085-wifi-ath11k-fix-memory-leak-in-WMI-firmware-stats.patch
   ath11k/0086-wifi-ath11k-Add-missing-check-for-ioremap.patch
   ath11k/0096-wifi-ath11k-fix-boot-failure-with-one-MSI-vector.patch
   subsys/337-wifi-mac80211-fix-race-condition-on-enabling-fast-xm.patch

The following patches were integrated in upstream backports:
   ath11k/901-wifi-ath11k-pci-fix-compilation-in-5.16-and-older.patch
   build/080-resv_start_op.patch
   build/110-backport_napi_build_skb.patch

The following files are missing in backports, we do not have to remove
them any more. Some were already missing before some were removed in
this update:
   include/linux/cordic.h
   include/linux/crc8.h
   include/linux/eeprom_93cx6.h
   include/linux/wl12xx.h
   include/net/ieee80211.h
   backport-include/linux/bcm47xx_nvram.h
   include/linux/ath9k_platform.h
   include/net/bluetooth/

backports ships a dummy Mediatek wed header for older kernel versions.
We backported the feature in our kernel, remove the dummy header:
   backport-include/linux/soc/mediatek/mtk_wed.h

Remove header files for subsystems used form the mainline kernel:
   include/trace/events/qrtr.h
   include/net/rsi_91x.h
   backport-include/linux/platform_data/brcmnand.h

Link: https://github.com/openwrt/openwrt/pull/15827
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2024-07-07 18:30:37 +02:00

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1.2 KiB
Diff

From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 13 Mar 2023 11:42:12 +0100
Subject: [PATCH] wifi: mac80211: flush queues on STA removal
When we remove a station, we first make it unreachable,
then we (must) remove its keys, and then remove the
station itself. Depending on the hardware design, if
we have hardware crypto at all, frames still sitting
on hardware queues may then be transmitted without a
valid key, possibly unencrypted or with a fixed key.
Fix this by flushing the queues when removing stations
so this cannot happen.
Cc: stable@vger.kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-by: Greenman, Gregory <gregory.greenman@intel.com>
---
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -1276,6 +1276,14 @@ static void __sta_info_destroy_part2(str
WARN_ON_ONCE(ret);
}
+ /* Flush queues before removing keys, as that might remove them
+ * from hardware, and then depending on the offload method, any
+ * frames sitting on hardware queues might be sent out without
+ * any encryption at all.
+ */
+ if (local->ops->set_key)
+ ieee80211_flush_queues(local, sta->sdata, false);
+
/* now keys can no longer be reached */
ieee80211_free_sta_keys(local, sta);