Updated to 5.10.10

2 files changed, 81 insertions, 2 deletions

diff --git a/0004-HID-wacom-Correct-NULL-dereference-on-AES-pen-proximity.patch b/0004-HID-wacom-Correct-NULL-dereference-on-AES-pen-proximity.patch
new file mode 100644
index 0000000..0de03e8
--- /dev/null
+++ b/0004-HID-wacom-Correct-NULL-dereference-on-AES-pen-proximity.patch
@@ -0,0 +1,76 @@
+From 85c0c0e3a81f87290db5e881af609d51021b54b7 Mon Sep 17 00:00:00 2001
+From: Jason Gerecke <killertofu@gmail.com>
+Date: Thu, 21 Jan 2021 10:46:49 -0800
+Subject: HID: wacom: Correct NULL dereference on AES pen proximity
+
+The recent commit to fix a memory leak introduced an inadvertant NULL
+pointer dereference. The `wacom_wac->pen_fifo` variable was never
+intialized, resuling in a crash whenever functions tried to use it.
+Since the FIFO is only used by AES pens (to buffer events from pen
+proximity until the hardware reports the pen serial number) this would
+have been easily overlooked without testing an AES device.
+
+This patch converts `wacom_wac->pen_fifo` over to a pointer (since the
+call to `devres_alloc` allocates memory for us) and ensures that we assign
+it to point to the allocated and initalized `pen_fifo` before the function
+returns.
+
+Link: https://github.com/linuxwacom/input-wacom/issues/230
+Fixes: 37309f47e2f5 ("HID: wacom: Fix memory leakage caused by kfifo_alloc")
+CC: stable@vger.kernel.org # v4.19+
+Signed-off-by: Jason Gerecke <jason.gerecke@wacom.com>
+Tested-by: Ping Cheng <ping.cheng@wacom.com>
+---
+ drivers/hid/wacom_sys.c | 7 ++++---
+ drivers/hid/wacom_wac.h | 2 +-
+ 2 files changed, 5 insertions(+), 4 deletions(-)
+
+diff --git a/drivers/hid/wacom_sys.c b/drivers/hid/wacom_sys.c
+index 9e852b4bbf92..73dafa60080f 100644
+--- a/drivers/hid/wacom_sys.c
++++ b/drivers/hid/wacom_sys.c
+@@ -147,9 +147,9 @@ static int wacom_wac_pen_serial_enforce(struct hid_device *hdev,
+ 	}
+ 
+ 	if (flush)
+-		wacom_wac_queue_flush(hdev, &wacom_wac->pen_fifo);
++		wacom_wac_queue_flush(hdev, wacom_wac->pen_fifo);
+ 	else if (insert)
+-		wacom_wac_queue_insert(hdev, &wacom_wac->pen_fifo,
++		wacom_wac_queue_insert(hdev, wacom_wac->pen_fifo,
+ 				       raw_data, report_size);
+ 
+ 	return insert && !flush;
+@@ -1280,7 +1280,7 @@ static void wacom_devm_kfifo_release(struct device *dev, void *res)
+ static int wacom_devm_kfifo_alloc(struct wacom *wacom)
+ {
+ 	struct wacom_wac *wacom_wac = &wacom->wacom_wac;
+-	struct kfifo_rec_ptr_2 *pen_fifo = &wacom_wac->pen_fifo;
++	struct kfifo_rec_ptr_2 *pen_fifo;
+ 	int error;
+ 
+ 	pen_fifo = devres_alloc(wacom_devm_kfifo_release,
+@@ -1297,6 +1297,7 @@ static int wacom_devm_kfifo_alloc(struct wacom *wacom)
+ 	}
+ 
+ 	devres_add(&wacom->hdev->dev, pen_fifo);
++	wacom_wac->pen_fifo = pen_fifo;
+ 
+ 	return 0;
+ }
+diff --git a/drivers/hid/wacom_wac.h b/drivers/hid/wacom_wac.h
+index da612b6e9c77..195910dd2154 100644
+--- a/drivers/hid/wacom_wac.h
++++ b/drivers/hid/wacom_wac.h
+@@ -342,7 +342,7 @@ struct wacom_wac {
+ 	struct input_dev *pen_input;
+ 	struct input_dev *touch_input;
+ 	struct input_dev *pad_input;
+-	struct kfifo_rec_ptr_2 pen_fifo;
++	struct kfifo_rec_ptr_2 *pen_fifo;
+ 	int pid;
+ 	int num_contacts_left;
+ 	u8 bt_features;
+-- 
+cgit v1.2.3-1-gf6bb5
+
diff --git a/PKGBUILD b/PKGBUILD
index 3790b84..093b861 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -15,7 +15,7 @@
 pkgbase=linux-libre
 _supver=5
 _majver=10
-_minver=9
+_minver=10
 _gccpatchver='20201113'
 _gccpatchger='10.1'
 _gccpatchker='5.8'
@@ -44,6 +44,7 @@ source=(
   0001-ZEN-Add-sysctl-and-CONFIG-to-disallow-unprivileged-C.patch
   0002-HID-quirks-Add-Apple-Magic-Trackpad-2-to-hid_have_special_driver-list.patch
   0003-iwlwifi-Fix-regression-from-UDP-segmentation-support.patch
+  0004-HID-wacom-Correct-NULL-dereference-on-AES-pen-proximity.patch
   kernel_gcc_patch-${_gccpatchver}.tar.gz::https://github.com/graysky2/kernel_gcc_patch/archive/${_gccpatchver}.tar.gz
   ath9k-regdom-hack.patch
   raid6-default-algo.patch
@@ -60,10 +61,11 @@ b2sums=('86103699a6bc906e85429430df098b0ddb7cfc8c887f98b37f994498388d634554e119e
         '2f9195675270d79d735a3aaec25887c2f80b76eae98be8fcc5fd59ab71d925c5ee20ec5e2a015deb68b61bc2cc7f56f546a22cb96ee038e2e24c2c9dd5c3f79f'
         'd8297e09f552a2d6bb24c2ba10481fd2b407057f3b24278e72a89233473460d339c83838791989773623178b5af80588fb4c484da2931f1040e313cce7ceca00'
         '15d9b32ff1ad4c897b097173de259cdb89bbbf6ab0230faf4557eca511a59c1f2c76b85be30d25cf9534f91e1af43e72d072bc82dbf2219eadf772822f573d38'
+        '078dca48f0937ad021b1d50ba98dc1c156fb67a18b25fa079d2d35d0aa5480fb820e952c7f569cff5744cd32976a23942c2e822d1cfada8144e9a8dc9bae1d82'
         '7f1eb5938472f57748216bd00e0c875feab99fc1c5cb89babfea467ee30ca5c8e9fc5a691efe2e602bef1ea79820c5383822d7cec354b48d23321ccda8ee8127'
         'b6ef77035611139fa9a6d5b8d30570e2781bb4da483bb569884b0bd0129b62e0b82a5a6776fefe43fee801c70d39de1ea4d4c177f7cedd5ac135e3c64f7b895a'
         'fde132f3705d908e6f2147c78a2193289916d72304ca5efa2229d79fc3e57a857314ce94e71425caef2f7f7b6cf87f05ef86335dc8bd4be78e7035afe608005a'
-        'f90bc3a6db58fcfac2e8de4b3917a751f19d91c285678c8dc33842645cf43fb7333c3670a52bab13555527853aac80867505322556d5816c483b1398a9f0fbb6'
+        '1bca51f51972850011d25d123cb6333ebb151a5673f643d41aa9ee4050ccccf9d7fbdf3caa185dff70f74ed468cb402a1bda370b82668889a0abbf278acfbcea'
         'SKIP')
 
 export KBUILD_BUILD_HOST=arc4linux
@@ -85,6 +87,7 @@ prepare() {
   patch -p1 -i ../0001-ZEN-Add-sysctl-and-CONFIG-to-disallow-unprivileged-C.patch
   patch -p1 -i ../0002-HID-quirks-Add-Apple-Magic-Trackpad-2-to-hid_have_special_driver-list.patch
   patch -p1 -i ../0003-iwlwifi-Fix-regression-from-UDP-segmentation-support.patch
+  patch -p1 -i ../0004-HID-wacom-Correct-NULL-dereference-on-AES-pen-proximity.patch
 
 
   # graysky gcc patch