In the Linux kernel, the following vulnerability has been resolved:
iio: accel: kxsd9: fix runtime PM imbalance on write_raw() error
kxsd9_write_raw() takes a runtime PM reference with pm_runtime_get_sync()
but returns -EINVAL directly when a scale with a non-zero integer part is
requested, skipping the matching pm_runtime_put_autosuspend(). This leaks
a runtime PM usage-counter reference on every such write, after which the
device can no longer autosuspend.
Set the error code and fall through to the existing put instead of
returning early.
References 8
https://git.kernel.org/stable/c/13a91e8631cfeb68e5b7fd6687f194f5a86e83fe
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/191fcfeb729ededd8dd2a999c6bf351ddfa0cec7
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/223703d6e8bed50b6a0b47e160877909518d94b9
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/36154171385a8a2444a4b3c6eaa0c5294cb02478
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/44a5fd874bb6873bdaec59f722c1d57832fbc9df
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/6293211d142605bec435229ef0aa3668b8964164
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/a93fd69c1ab0854ac4f5b8439c26dfadb25dfd20
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/eeece4a85ece6f3837c75ef26a9b2bf5a1d0fcfc
416baaa9-dc9f-4396-8d5f-8c081fb06d67