Improper locking in Linux kernel firmware driver

1) Improper locking

EUVDB-ID: #VU97267

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2024-46692

CWE-ID: CWE-667 - Improper Locking

Exploit availability: No

Description

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

The vulnerability exists due to improper locking within the scm_get_wq_ctx() function in drivers/firmware/qcom_scm-smc.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

CPE2.3

External links

http://git.kernel.org/stable/c/cdf7efe4b02aa93813db0bf1ca596ad298ab6b06
http://git.kernel.org/stable/c/e40115c33c0d79c940545b6b12112aace7acd9f5
http://git.kernel.org/stable/c/9960085a3a82c58d3323c1c20b991db6045063b0

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.