In the Linux kernel, the following vulnerability has been resolved:
iio: pressure: mpl115: fix runtime PM leak on read error
mpl115_read_raw() takes a runtime PM reference with pm_runtime_get_sync()
before reading the processed pressure or raw temperature, but on the read
error path it returns without calling pm_runtime_put_autosuspend(). Each
failed read therefore leaks a runtime PM reference and prevents the device
from autosuspending.
Drop the reference before checking the return value so both the success
and error paths are balanced.
References 5
https://git.kernel.org/stable/c/46e69d3dd429b33e50e2731913239f6af4ea2705
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/5022f4ed5aae974ec530e3cbf0bd223be13055f7
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/aab0fed636b14a5fd52fcae58b484f1cb96b841d
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/b3f1af4ba8e9cf33aa08c4cdcaa5a17b140521ec
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/fbe67ff37a6fd855a6c097f84f3738bd13d0a898
416baaa9-dc9f-4396-8d5f-8c081fb06d67