This is a note to let you know that I've just added the patch titled
Input: uinput - handle compat ioctl for UI_SET_PHYS
to the 3.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
input-uinput-handle-compat-ioctl-for-ui_set_phys.patch
and it can be found in the queue-3.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From affa80bd97f7ca282d1faa91667b3ee9e4c590e6 Mon Sep 17 00:00:00 2001
From: Ricky Liang <jcliang@xxxxxxxxxxxx>
Date: Fri, 20 May 2016 10:58:59 -0700
Subject: Input: uinput - handle compat ioctl for UI_SET_PHYS
From: Ricky Liang <jcliang@xxxxxxxxxxxx>
commit affa80bd97f7ca282d1faa91667b3ee9e4c590e6 upstream.
When running a 32-bit userspace on a 64-bit kernel, the UI_SET_PHYS
ioctl needs to be treated with special care, as it has the pointer
size encoded in the command.
Signed-off-by: Ricky Liang <jcliang@xxxxxxxxxxxx>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/input/misc/uinput.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -845,9 +845,15 @@ static long uinput_ioctl(struct file *fi
}
#ifdef CONFIG_COMPAT
+
+#define UI_SET_PHYS_COMPAT _IOW(UINPUT_IOCTL_BASE, 108, compat_uptr_t)
+
static long uinput_compat_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
+ if (cmd == UI_SET_PHYS_COMPAT)
+ cmd = UI_SET_PHYS;
+
return uinput_ioctl_handler(file, cmd, arg, compat_ptr(arg));
}
#endif
Patches currently in stable-queue which might be from jcliang@xxxxxxxxxxxx are
queue-3.14/input-uinput-handle-compat-ioctl-for-ui_set_phys.patch
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