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.
Metrics
Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: Linux
Published: 2024-05-21T15:23:00.572Z
Updated: 2024-12-19T08:24:41.530Z
Reserved: 2024-05-21T15:19:24.232Z
Link: CVE-2023-52736
Vulnrichment
Updated: 2024-08-02T23:11:35.525Z
NVD
Status : Awaiting Analysis
Published: 2024-05-21T16:15:13.597
Modified: 2024-11-21T08:40:28.620
Link: CVE-2023-52736
Redhat