#VU102095 NULL pointer dereference in Linux kernel - CVE-2024-56685

Vulnerability identifier: #VU102095

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-56685

CWE-ID: CWE-476

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to NULL pointer dereference within the mt8195_mt6359_soc_card_probe() function in sound/soc/mediatek/mt8195/mt8195-mt6359.c, within the mt8192_mt6359_legacy_probe() and mt8192_mt6359_soc_card_probe() functions in sound/soc/mediatek/mt8192/mt8192-mt6359-rt1015-rt5682.c, within the mt8188_mt6359_soc_card_probe() function in sound/soc/mediatek/mt8188/mt8188-mt6359.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: All versions

---

External links
https://git.kernel.org/stable/c/2f2020327cc8561d7c520d2f2d9acea84fa7b3a3
https://git.kernel.org/stable/c/376f4800f34a28def026ff5c5d4fc5e54e1744ff
https://git.kernel.org/stable/c/550279449ff54c5aa28cfca5c567308cbfb145f0

---

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.