In the Linux kernel, the following vulnerability has been resolved: hwmon: (pmbus_core) Fix NULL pointer dereference Pass i2c_client to _pmbus_is_enabled to drop the assumption that a regulator device is passed in. This will fix the issue of a NULL pointer dereference when called from _pmbus_get_flags.
https://git.kernel.org/stable/c/7444253cacd92412bc8d33d1c9b5401f52cdf0e2
https://git.kernel.org/stable/c/0bd66784274a287beada2933c2c0fa3a0ddae0d7