diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2019-02-01 11:05:27 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2019-02-01 11:05:35 +0100 |
| commit | 752cfee90d11e280d727617bf8d6df894141e157 (patch) | |
| tree | c55feff5c93af364fe2212d6b2942abb3748e05c /drivers/input/misc/uinput.c | |
| parent | 5ac4a12df58121f0cf874b518406ec2a8e2d4ac4 (diff) | |
| parent | fa6821cbf1d9724284ef0906c9a01a5fbf13a35c (diff) | |
Merge remote-tracking branch 'net-next/master' into mac80211-next
Merge net-next so that we get the changes from net, which would
otherwise conflict with the NLA_POLICY_NESTED/_ARRAY changes.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'drivers/input/misc/uinput.c')
| -rw-r--r-- | drivers/input/misc/uinput.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c index 8ec483e8688b..26ec603fe220 100644 --- a/drivers/input/misc/uinput.c +++ b/drivers/input/misc/uinput.c @@ -39,6 +39,7 @@ #include <linux/init.h> #include <linux/fs.h> #include <linux/miscdevice.h> +#include <linux/overflow.h> #include <linux/input/mt.h> #include "../input-compat.h" @@ -405,7 +406,7 @@ static int uinput_open(struct inode *inode, struct file *file) static int uinput_validate_absinfo(struct input_dev *dev, unsigned int code, const struct input_absinfo *abs) { - int min, max; + int min, max, range; min = abs->minimum; max = abs->maximum; @@ -417,7 +418,7 @@ static int uinput_validate_absinfo(struct input_dev *dev, unsigned int code, return -EINVAL; } - if (abs->flat > max - min) { + if (!check_sub_overflow(max, min, &range) && abs->flat > range) { printk(KERN_DEBUG "%s: abs_flat #%02x out of range: %d (min:%d/max:%d)\n", UINPUT_NAME, code, abs->flat, min, max); |