#VU101099 Memory leak in Linux kernel - CVE-2024-53121

Vulnerability identifier: #VU101099

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-2024-53121

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 lookup_fte_locked() function in drivers/net/ethernet/mellanox/mlx5/core/fs_core.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/094d1a2121cee1e85ab07d74388f94809dcfb5b9
https://git.kernel.org/stable/c/933ef0d17f012b653e9e6006e3f50c8d0238b5ed
https://git.kernel.org/stable/c/9ca314419930f9135727e39d77e66262d5f7bef6
https://git.kernel.org/stable/c/bfba288f53192db08c68d4c568db9783fb9cb838

---

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.