From 35570801b7384f86c61fccf98cdf080d82ffd182 Mon Sep 17 00:00:00 2001
From: Jan200101 <sentrycraft123@gmail.com>
Date: Wed, 6 Dec 2023 19:18:31 +0100
Subject: kernel 6.6.3

---
 SOURCES/uinput.patch | 133 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 133 insertions(+)
 create mode 100644 SOURCES/uinput.patch

(limited to 'SOURCES/uinput.patch')

diff --git a/SOURCES/uinput.patch b/SOURCES/uinput.patch
new file mode 100644
index 0000000..c5666a8
--- /dev/null
+++ b/SOURCES/uinput.patch
@@ -0,0 +1,133 @@
+---
+ drivers/input/misc/uinput.c | 48 +++++++++++++++++++++++++------------
+ include/uapi/linux/uinput.h |  5 ++++
+ 2 files changed, 38 insertions(+), 15 deletions(-)
+
+
+diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
+index 84051f20b18a..2c3180370a02 100644
+--- a/drivers/input/misc/uinput.c
++++ b/drivers/input/misc/uinput.c
+@@ -20,6 +20,7 @@ 
+  */
+ #include <uapi/linux/uinput.h>
+ #include <linux/poll.h>
++#include <linux/printk.h>
+ #include <linux/sched.h>
+ #include <linux/slab.h>
+ #include <linux/module.h>
+@@ -280,7 +281,7 @@  static int uinput_dev_flush(struct input_dev *dev, struct file *file)
+ 
+ static void uinput_destroy_device(struct uinput_device *udev)
+ {
+-	const char *name, *phys;
++	const char *name, *phys, *uniq;
+ 	struct input_dev *dev = udev->dev;
+ 	enum uinput_state old_state = udev->state;
+ 
+@@ -289,6 +290,7 @@  static void uinput_destroy_device(struct uinput_device *udev)
+ 	if (dev) {
+ 		name = dev->name;
+ 		phys = dev->phys;
++		uniq = dev->uniq;
+ 		if (old_state == UIST_CREATED) {
+ 			uinput_flush_requests(udev);
+ 			input_unregister_device(dev);
+@@ -297,6 +299,7 @@  static void uinput_destroy_device(struct uinput_device *udev)
+ 		}
+ 		kfree(name);
+ 		kfree(phys);
++		kfree(uniq);
+ 		udev->dev = NULL;
+ 	}
+ }
+@@ -831,6 +834,24 @@  static int uinput_str_to_user(void __user *dest, const char *str,
+ 	return ret ? -EFAULT : len;
+ }
+ 
++static int uinput_get_user_str(struct uinput_device *udev, const char **kptr,
++			       const char *uptr, unsigned int size)
++{
++	char *tmp;
++
++	if (udev->state == UIST_CREATED)
++		return -EINVAL;
++
++	tmp = strndup_user(uptr, size);
++	if (IS_ERR(tmp))
++		return PTR_ERR(tmp);
++
++	kfree(*kptr);
++	*kptr = tmp;
++
++	return 0;
++}
++
+ static long uinput_ioctl_handler(struct file *file, unsigned int cmd,
+ 				 unsigned long arg, void __user *p)
+ {
+@@ -839,7 +860,6 @@  static long uinput_ioctl_handler(struct file *file, unsigned int cmd,
+ 	struct uinput_ff_upload ff_up;
+ 	struct uinput_ff_erase  ff_erase;
+ 	struct uinput_request   *req;
+-	char			*phys;
+ 	const char		*name;
+ 	unsigned int		size;
+ 
+@@ -916,19 +936,8 @@  static long uinput_ioctl_handler(struct file *file, unsigned int cmd,
+ 		goto out;
+ 
+ 	case UI_SET_PHYS:
+-		if (udev->state == UIST_CREATED) {
+-			retval = -EINVAL;
+-			goto out;
+-		}
+-
+-		phys = strndup_user(p, 1024);
+-		if (IS_ERR(phys)) {
+-			retval = PTR_ERR(phys);
+-			goto out;
+-		}
+-
+-		kfree(udev->dev->phys);
+-		udev->dev->phys = phys;
++		pr_warn_once("uinput: UI_SET_PHYS is deprecated. Use UI_SET_PHYS_STR");
++		retval = uinput_get_user_str(udev, &udev->dev->phys, p, 1024);
+ 		goto out;
+ 
+ 	case UI_BEGIN_FF_UPLOAD:
+@@ -1023,6 +1032,15 @@  static long uinput_ioctl_handler(struct file *file, unsigned int cmd,
+ 	case UI_ABS_SETUP & ~IOCSIZE_MASK:
+ 		retval = uinput_abs_setup(udev, p, size);
+ 		goto out;
++
++	case UI_SET_PHYS_STR(0):
++		retval = uinput_get_user_str(udev, &udev->dev->phys, p, size);
++		goto out;
++
++	case UI_SET_UNIQ_STR(0):
++		retval = uinput_get_user_str(udev, &udev->dev->uniq, p, size);
++		goto out;
++
+ 	}
+ 
+ 	retval = -EINVAL;
+diff --git a/include/uapi/linux/uinput.h b/include/uapi/linux/uinput.h
+index c9e677e3af1d..84d4fa142830 100644
+--- a/include/uapi/linux/uinput.h
++++ b/include/uapi/linux/uinput.h
+@@ -142,9 +142,14 @@  struct uinput_abs_setup {
+ #define UI_SET_LEDBIT		_IOW(UINPUT_IOCTL_BASE, 105, int)
+ #define UI_SET_SNDBIT		_IOW(UINPUT_IOCTL_BASE, 106, int)
+ #define UI_SET_FFBIT		_IOW(UINPUT_IOCTL_BASE, 107, int)
++
++/* DEPRECATED: Data size is ambiguous. Use UI_SET_PHYS_STR instead. */
+ #define UI_SET_PHYS		_IOW(UINPUT_IOCTL_BASE, 108, char*)
++
+ #define UI_SET_SWBIT		_IOW(UINPUT_IOCTL_BASE, 109, int)
+ #define UI_SET_PROPBIT		_IOW(UINPUT_IOCTL_BASE, 110, int)
++#define UI_SET_PHYS_STR(len)	_IOC(_IOC_WRITE, UINPUT_IOCTL_BASE, 111, len)
++#define UI_SET_UNIQ_STR(len)	_IOC(_IOC_WRITE, UINPUT_IOCTL_BASE, 112, len)
+ 
+ #define UI_BEGIN_FF_UPLOAD	_IOWR(UINPUT_IOCTL_BASE, 200, struct uinput_ff_upload)
+ #define UI_END_FF_UPLOAD	_IOW(UINPUT_IOCTL_BASE, 201, struct uinput_ff_upload)
-- 
cgit v1.2.3