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| author | Michael Zaidman <[email protected]> | 2021-04-13 15:12:00 +0000 |
|---|---|---|
| committer | Jiri Kosina <[email protected]> | 2021-05-05 12:32:46 +0000 |
| commit | b45ef5db7bf268f6851bb5395d60301338374abc (patch) | |
| tree | 9d8d3b74b3bd109eb566c8ff28033907327a8dd0 /drivers/hid/hid-sensor-hub.c | |
| parent | HID: surface-hid: Fix integer endian conversion (diff) | |
| download | kernel-b45ef5db7bf268f6851bb5395d60301338374abc.tar.gz kernel-b45ef5db7bf268f6851bb5395d60301338374abc.zip | |
HID: ft260: check data size in ft260_smbus_write()
The SMbus block transaction limits the number of bytes transferred to 32,
but nothing prevents a user from specifying via ioctl a larger data size
than the ft260 can handle in a single transfer.
i2cdev_ioctl_smbus()
--> i2c_smbus_xfer
--> __i2c_smbus_xfer
--> ft260_smbus_xfer
--> ft260_smbus_write
This patch adds data size checking in the ft260_smbus_write().
Fixes: 98189a0adfa0 ("HID: ft260: add usb hid to i2c host bridge driver")
Signed-off-by: Michael Zaidman <[email protected]>
Reported-by: Dan Carpenter <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>
Diffstat (limited to 'drivers/hid/hid-sensor-hub.c')
0 files changed, 0 insertions, 0 deletions