#VU104276 Memory leak in Linux kernel - CVE-2022-49431

Vulnerability identifier: #VU104276

Vulnerability risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:U/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-49431

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 iommu_init_early_dart() function in arch/powerpc/sysdev/dart_iommu.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

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External links
https://git.kernel.org/stable/c/57b742a5b8945118022973e6416b71351df512fb
https://git.kernel.org/stable/c/7e3f1dfb9e21733d7276bc9ccea4daada163f2ba
https://git.kernel.org/stable/c/8657e8ea23325949091da72453ba84fb73cc2bd9
https://git.kernel.org/stable/c/cb4f2dc513e99c5d0485661f114e4dda73612d10
https://git.kernel.org/stable/c/df6d8b689252c0acc0448d4ae3d33f2d6db048ab
https://git.kernel.org/stable/c/dfc308d6f29aa28463deb9a12278a85a382385ca

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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.