diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2024-09-05 16:51:58 +0200 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2024-09-05 16:57:36 +0200 |
| commit | 56d8b784c56588cd40f98e4b1d4f6e29e3cb02b8 (patch) | |
| tree | 5edd10e48440fcbb5a76bbb9b78dc1706b3d5cec /drivers/input/misc/uinput.c | |
| parent | platform/x86: thinkpad_acpi: Fix uninitialized symbol 's' warning (diff) | |
| parent | hwmon: (hp-wmi-sensors) Check if WMI event data exists (diff) | |
| download | linux-56d8b784c56588cd40f98e4b1d4f6e29e3cb02b8.tar.gz linux-56d8b784c56588cd40f98e4b1d4f6e29e3cb02b8.zip | |
Merge tag 'hwmon-for-v6.11-rc7' into review-hans
Merge "hwmon fixes for v6.11-rc7" into review-hans to bring in
commit a54da9df75cd ("hwmon: (hp-wmi-sensors) Check if WMI event
data exists").
This is a dependency for a set of WMI event data refactoring changes.
Diffstat (limited to 'drivers/input/misc/uinput.c')
| -rw-r--r-- | drivers/input/misc/uinput.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c index d23f3225b00f..445856c9127a 100644 --- a/drivers/input/misc/uinput.c +++ b/drivers/input/misc/uinput.c @@ -417,6 +417,20 @@ static int uinput_validate_absinfo(struct input_dev *dev, unsigned int code, return -EINVAL; } + /* + * Limit number of contacts to a reasonable value (100). This + * ensures that we need less than 2 pages for struct input_mt + * (we are not using in-kernel slot assignment so not going to + * allocate memory for the "red" table), and we should have no + * trouble getting this much memory. + */ + if (code == ABS_MT_SLOT && max > 99) { + printk(KERN_DEBUG + "%s: unreasonably large number of slots requested: %d\n", + UINPUT_NAME, max); + return -EINVAL; + } + return 0; } |