In the Linux kernel, the following vulnerability has been resolved:
ASoC: rockchip: rockchip_pdm: Handle runtime PM resume failures in set_fmt
rockchip_pdm_set_fmt() calls pm_runtime_get_sync() before accessing
hardware registers, but ignores its return value.
If the runtime resume fails, the function continues to perform register
accesses while the device state is undefined.
Replace pm_runtime_get_sync() with pm_runtime_resume_and_get() and
return early on failure to avoid unpowered register accesses.
References 3
https://git.kernel.org/stable/c/a9cc27a4a9b5fe013e152841fd8408061fa2312f
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/b2b5c2ca5a4924271fa86d75a252de32fa285375
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/ee7b5f7b39332febf917f9ebf212842cc9379815
416baaa9-dc9f-4396-8d5f-8c081fb06d67