Improper locking in Linux kernel loongarch mm

1) Improper locking

EUVDB-ID: #VU102169

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-2024-56585

CWE-ID: CWE-667 - Improper Locking

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper locking within the setup_tlb_handler() function in arch/loongarch/mm/tlb.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

CPE2.3

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links

https://git.kernel.org/stable/c/08715b741f9b2a925d6485491e4907f3b29bac70
https://git.kernel.org/stable/c/6575e0867bd478a5d7ef1783ca1e73160807d238
https://git.kernel.org/stable/c/88fd2b70120d52c1010257d36776876941375490
https://git.kernel.org/stable/c/c5f89458a2ea0800866b9fc690d3fa8367dc8f8d

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.