#VU102255 Incorrect calculation in Linux kernel - CVE-2024-56749

Vulnerability identifier: #VU102255

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-2024-56749

CWE-ID: CWE-682

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 incorrect calculation within the ls_recover() function in fs/dlm/recoverd.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.12, 6.12.1

---

External links
https://git.kernel.org/stable/c/200b977ebbc313a59174ba971006a231b3533dc5
https://git.kernel.org/stable/c/3230718a75a6c30ed60ac920c26be2119fa82b8e
https://git.kernel.org/stable/c/fb2ec564887af1f365d754f7c306f1b5cd375b5e
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.2

---

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.