#VU89992 Memory leak in Linux kernel - CVE-2024-27068

Vulnerability identifier: #VU89992

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-2024-27068

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 lvts_calibration_read() function in drivers/thermal/mediatek/lvts_thermal.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.6, 6.6 rc1, 6.6 rc2, 6.6 rc3, 6.6 rc4, 6.6 rc5, 6.6 rc6, 6.6.1, 6.6.2, 6.6.3, 6.6.4, 6.6.5, 6.6.6, 6.6.7, 6.6.8, 6.6.9, 6.6.10, 6.6.11, 6.6.12, 6.6.13, 6.6.14, 6.6.15, 6.6.16, 6.6.17, 6.6.18, 6.6.19, 6.6.20, 6.6.21, 6.6.22, 6.7, 6.7 rc1, 6.7 rc2, 6.7 rc3, 6.7 rc5, 6.7 rc6, 6.7 rc7, 6.7.1, 6.7.2, 6.7.3, 6.7.4, 6.7.5, 6.7.6, 6.7.7, 6.7.8, 6.7.9, 6.7.10, 6.8, 6.8 rc1, 6.8 rc2, 6.8 rc5, 6.8.1

---

External links
https://git.kernel.org/stable/c/2db869da91afd48e5b9ec76814709be49662b07d
https://git.kernel.org/stable/c/a37f3652bee468f879d35fe2da9ede3f1dcbb7be
https://git.kernel.org/stable/c/9b02197596671800dd934609384b1aca7c6ad218
https://git.kernel.org/stable/c/ca93bf607a44c1f009283dac4af7df0d9ae5e357
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.23
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.11
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8.2

---

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.