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author | Michael Zaidman <michael.zaidman@gmail.com> | 2021-04-13 18:12:00 +0300 |
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committer | Jiri Kosina <jkosina@suse.cz> | 2021-05-05 14:32:46 +0200 |
commit | b45ef5db7bf268f6851bb5395d60301338374abc (patch) | |
tree | 9d8d3b74b3bd109eb566c8ff28033907327a8dd0 /drivers/hid/hid-sensor-hub.c | |
parent | b0d713c60c75cdd04bf8ad8cfb046c8530709de3 (diff) |
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 <michael.zaidman@gmail.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-sensor-hub.c')
0 files changed, 0 insertions, 0 deletions