#VU104348 Memory leak in Linux kernel - CVE-2022-49714

Vulnerability identifier: #VU104348

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-2022-49714

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 map_interrupts() function in drivers/irqchip/irq-realtek-rtl.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/e85b1b797de0e7a271b906291ce28245822820b8
https://git.kernel.org/stable/c/eff4780f83d0ae3e5b6c02ff5d999dc4c1c5c8ce
https://git.kernel.org/stable/c/f6d6223df0666fbc054e3a8c6ac14eb0af37c286

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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.