#VU108150 Memory leak in Linux kernel - CVE-2022-49901

Vulnerability identifier: #VU108150

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-2022-49901

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 blk_mq_init_allocated_queue() function in block/blk-mq.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.0, 6.0 rc1, 6.0 rc2, 6.0 rc3, 6.0 rc4, 6.0.1, 6.0.2, 6.0.3, 6.0.4, 6.0.5, 6.0.6, 6.0.7, 6.1 rc1, 6.1 rc3, 6.1 rc7

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External links
https://git.kernel.org/stable/c/2dc97e15a54b7bdf457848aa8c663c98a24e58a6
https://git.kernel.org/stable/c/943f45b9399ed8b2b5190cbc797995edaa97f58f
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0.8
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1

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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.