Vulnerability identifier: #VU94473

Vulnerability 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-2022-48817

CWE-ID: CWE-399

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 resource management error within the ar9331_sw_mbus_init() and ar9331_sw_remove() functions in drivers/net/dsa/qca/ar9331.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel:

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External links
http://git.kernel.org/stable/c/475ce5dcf2d88fd4f3c213a0ac944e3e40702970
http://git.kernel.org/stable/c/aae1c6a1d3d696fc33b609fb12fe744a556d1dc5
http://git.kernel.org/stable/c/f1842a8cb71de4d7eb75a86f76e88c7ee739218c
http://git.kernel.org/stable/c/50facd86e9fbc4b93fe02e5fe05776047f45dbfb

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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.