#VU104326 Memory leak in Linux kernel - CVE-2022-49656

Vulnerability identifier: #VU104326

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-2022-49656

CWE-ID: CWE-401

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 memory leak within the meson_smp_prepare_cpus() function in arch/arm/mach-meson/platsmp.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/2e1bcd33478ef44e63a45457055060b5fe4118ad
https://git.kernel.org/stable/c/34d2cd3fccced12b958b8848e3eff0ee4296764c
https://git.kernel.org/stable/c/3cf8ece9113242c10f83c7675ea4f4f67959ee43
https://git.kernel.org/stable/c/3d90607e7e6afa89768b0aaa915b58bd2b849276
https://git.kernel.org/stable/c/7208101ded1e9dcc52c8f0f8b16474211c871c1a
https://git.kernel.org/stable/c/c5fbf4f74c94fd60d5e9bf9f7f8268c3601562ca

---

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.