In the Linux kernel, the following vulnerability has been resolved:

ALSA: hda: Do not unset preset when cleaning up codec

Several functions that take part in codec's initialization and removal
are re-used by ASoC codec drivers implementations. Drivers mimic the
behavior of hda_codec_driver_probe/remove() found in
sound/pci/hda/hda_bind.c with their component->probe/remove() instead.

One of the reasons for that is the expectation of
snd_hda_codec_device_new() to receive a valid pointer to an instance of
struct snd_card. This expectation can be met only once sound card
components probing commences.

As ASoC sound card may be unbound without codec device being actually
removed from the system, unsetting ->preset in
snd_hda_codec_cleanup_for_unbind() interferes with module unload -> load
scenario causing null-ptr-deref. Preset is assigned only once, during
device/driver matching whereas ASoC codec driver's module reloading may
occur several times throughout the lifetime of an audio stack.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-05-04T07:42:12.040Z

Reserved: 2024-05-21T15:19:24.232Z

Link: CVE-2023-52736

cve-icon Vulnrichment

Updated: 2024-08-02T23:11:35.525Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2024-05-21T16:15:13.597

Modified: 2024-11-21T08:40:28.620

Link: CVE-2023-52736

cve-icon Redhat

Severity : Low

Publid Date: 2024-05-21T00:00:00Z

Links: CVE-2023-52736 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2025-07-12T22:23:46Z