Memory leak in Linux kernel yam

1) Memory leak

EUVDB-ID: #VU62482

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-2022-24959

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

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

The vulnerability exists due to memory leak within the yam_siocdevprivate() function in drivers/net/hamradio/yam.c. A local user can perform a denial of service attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Linux kernel: before 5.16.5

External links

http://github.com/torvalds/linux/commit/29eb31542787e1019208a2e1047bb7c76c069536
http://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.5

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.