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Add Intel WiFi driver fix to avoid crash on Intel NUC systems (#1739) (#1745)

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Stefan Agner 2022-02-08 16:13:13 +01:00 committed by GitHub
parent c29f95678f
commit 061a6e9860
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2 changed files with 56 additions and 7 deletions
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14
buildroot-external/board/pc/patches/linux/0001-iwlwifi-Make-missed-beacon-timeout-configurable.patch
View File

@ -1,8 +1,8 @@
From 332c4f164ac60dcc65c315841d9c6f064ae316ec Mon Sep 17 00:00:00 2001
Message-Id: <332c4f164ac60dcc65c315841d9c6f064ae316ec.1639398304.git.stefan@agner.ch>
From 6e5d979ec45555720a6537eb006947dca825afc0 Mon Sep 17 00:00:00 2001
Message-Id: <6e5d979ec45555720a6537eb006947dca825afc0.1644327234.git.stefan@agner.ch>
From: Zachary Michaels <mikezackles@gmail.com>
Date: Thu, 7 Jan 2021 08:13:11 -0800
Subject: [PATCH] iwlwifi: Make missed beacon timeout configurable
Subject: [PATCH 1/2] iwlwifi: Make missed beacon timeout configurable
Makes the beacon timeout a module parameter, allowing the original default (16
missed beacons) to be kept while also enabling users that experience problems to
@ -19,10 +19,10 @@ Signed-off-by: Stefan Agner <stefan@agner.ch>
4 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
index be214f39f52b..4401b6b8484a 100644
index 30c6d7b18599..d64cec9d593d 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
@@ -1740,6 +1740,7 @@ struct iwl_mod_params iwlwifi_mod_params = {
@@ -1741,6 +1741,7 @@ struct iwl_mod_params iwlwifi_mod_params = {
.power_level = IWL_POWER_INDEX_1,
.uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT,
.enable_ini = true,
@ -30,7 +30,7 @@ index be214f39f52b..4401b6b8484a 100644
/* the rest are 0 by default */
};
IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
@@ -1857,6 +1858,9 @@ module_param_named(enable_ini, iwlwifi_mod_params.enable_ini,
@@ -1858,6 +1859,9 @@ module_param_named(enable_ini, iwlwifi_mod_params.enable_ini,
bool, S_IRUGO | S_IWUSR);
MODULE_PARM_DESC(enable_ini,
"Enable debug INI TLV FW debug infrastructure (default: true");
@ -94,5 +94,5 @@ index 64f5a4cb3d3a..730638da8fd3 100644
/* A TimeUnit is 1024 microsecond */
#define MSEC_TO_TU(_msec) (_msec*1000/1024)
--
2.34.0
2.35.1

49
buildroot-external/board/pc/patches/linux/0002-iwlwifi-fix-use-after-free.patch Normal file
View File

@ -0,0 +1,49 @@
From ca69c942280b3fccd641ba2ca24c7c5925014241 Mon Sep 17 00:00:00 2001
Message-Id: <ca69c942280b3fccd641ba2ca24c7c5925014241.1644327234.git.stefan@agner.ch>
In-Reply-To: <6e5d979ec45555720a6537eb006947dca825afc0.1644327234.git.stefan@agner.ch>
References: <6e5d979ec45555720a6537eb006947dca825afc0.1644327234.git.stefan@agner.ch>
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 8 Feb 2022 11:47:30 +0100
Subject: [PATCH 2/2] iwlwifi: fix use-after-free
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
If no firmware was present at all (or, presumably, all of the
firmware files failed to parse), we end up unbinding by calling
device_release_driver(), which calls remove(), which then in
iwlwifi calls iwl_drv_stop(), freeing the 'drv' struct. However
the new code I added will still erroneously access it after it
was freed.
Set 'failure=false' in this case to avoid the access, all data
was already freed anyway.
Cc: stable@vger.kernel.org
Reported-by: Stefan Agner <stefan@agner.ch>
Reported-by: Wolfgang Walter <linux@stwm.de>
Reported-by: Jason Self <jason@bluehome.net>
Reported-by: Dominik Behr <dominik@dominikbehr.com>
Reported-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Fixes: ab07506b0454 ("iwlwifi: fix leaks/bad data after failed firmware load")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
drivers/net/wireless/intel/iwlwifi/iwl-drv.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
index d64cec9d593d..90a680799b03 100644
--- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c
@@ -1646,6 +1646,8 @@ static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
out_unbind:
complete(&drv->request_firmware_complete);
device_release_driver(drv->trans->dev);
+ /* drv has just been freed by the release */
+ failure = false;
free:
if (failure)
iwl_dealloc_ucode(drv);
--
2.35.1