In the Linux kernel, the following vulnerability has been resolved:
power: supply: max17040: propagate register read errors
max17040_get_vcell() and max17040_get_soc() ignore errors returned by
regmap_read(). When an I2C transfer fails, the uninitialized register
value is converted and reported to userspace as a valid voltage or state
of charge. The polling worker can also replace the cached state of charge
with the bogus value and emit a spurious change event.
Propagate read errors through the power supply get_property callback and
keep the last valid cached state of charge when polling fails.
References 4
https://git.kernel.org/stable/c/13fb0477da9b400071b9d518b24d6434c4965263
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/2943a0edd4865ed744702ada647921c3981207f6
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/659cc3d8d5ef246263873fce72c8cadeeed073cc
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/c7aa4c3708cc0d8487336f8281665eaea87130f6
416baaa9-dc9f-4396-8d5f-8c081fb06d67