AZL-67022

In the Linux kernel, the following vulnerability has been resolved:

iio: imu: bno055: fix OOB access of hw_xlate array

Fix a potential out-of-bounds array access of the hw_xlate array in bno055.c.

In bno055getregmask(), hwxlate was iterated over the length of the vals array instead of the length of the hwxlate array. In the case of bno055gyrscale, the vals array is larger than the hwxlate array, so this could result in an out-of-bounds access. In practice, this shouldn't happen though because a match should always be found which breaks out of the for loop before it iterates beyond the end of the hwxlate array.

By adding a new hwxlatelen field to the bno055sysfsattr, we can be sure we are iterating over the correct length.