CVE-2023-53275 ALSA: hda: fix a possible null-pointer dereference due to data race in snd_hdac_regmap_sync()

In the Linux kernel, the following vulnerability has been resolved: ALSA: hda: fix a possible null-pointer dereference due to data race in sndhdacregmapsync The variable codec-regmap is often protected by the lock codec-regmaplock when is accessed. However, it is accessed without holding the lock...