#VU104275 Memory leak in Linux kernel - CVE-2022-49422

Vulnerability identifier: #VU104275

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-2022-49422

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 idxd_cdev_register() function in drivers/dma/idxd/cdev.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/5e88561eceb34ae3f88451c2b8e30fe403484189
https://git.kernel.org/stable/c/6073af78156b8c3fc1198f8bcc190b7ac3ac0143
https://git.kernel.org/stable/c/aab08c1aac01097815fbcf10fce7021d2396a31f
https://git.kernel.org/stable/c/b3c7b5d08e9d5b2ff31c03078c00ecf11042419f
https://git.kernel.org/stable/c/c308a2e711a52a47f4b45e7add2b5200169e429a

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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.