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

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cve-icon 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

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