#VU104363 Memory leak in Linux kernel - CVE-2022-49102

Vulnerability identifier: #VU104363

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-2022-49102

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 hl_mmu_v1_fini() function in drivers/misc/habanalabs/common/mmu/mmu_v1.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

---

External links
https://git.kernel.org/stable/c/12e49aefda2e04b07604f13e03f40027cbeb0dc6
https://git.kernel.org/stable/c/30058d3a83cfe8c6aacbfe5ab13c01dd0c1799e3
https://git.kernel.org/stable/c/6d421fb7a9eddd8ce0a05641a3db97283fe20699
https://git.kernel.org/stable/c/eb85eec858c1a5c11d3a0bff403f6440b05b40dc

---

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.