CVE-2023-52736

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.

The following products are affected by CVE-2023-52736 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2023-52736.

URL	Resource
https://git.kernel.org/stable/c/427ca2530da8dc61a42620d7113b05e187b6c2c0
https://git.kernel.org/stable/c/7fc4e7191eae9d9325511e03deadfdb2224914f8
https://git.kernel.org/stable/c/87978e6ad45a16835cc58234451111091be3c59a
https://git.kernel.org/stable/c/e909f5f2aa55a8f9aa6919cce08015cb0e8d4668
https://lore.kernel.org/linux-cve-announce/2024052100-CVE-2023-52736-ff92@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2023-52736
https://www.cve.org/CVERecord?id=CVE-2023-52736