In the Linux kernel, the following vulnerability has been resolved:
thermal: int340x: Add NULL check for adev
Not all devices have an ACPI companion fwnode, so adev might be NULL. This is similar to the commit cd2fd6eab480 ("platform/x86: int3472: Check for adev == NULL").
Add a check for adev not being set and return -ENODEV in that case to avoid a possible NULL pointer deref in int3402thermalprobe().
Note, under the same directory, int3400thermalprobe() has such a check.
[ rjw: Subject edit, added Fixes: ]