Privilege escalation in Linux kernel tomoyo



| Updated: 2025-05-14
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2024-26622
CWE-ID CWE-416
Exploitation vector Local
Public exploit N/A
Vulnerable software
 Linux kernel
Operating systems & Components / Operating system

Vendor Linux Foundation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Use-after-free

EUVDB-ID: #VU87193

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-26622

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the tomoyo_write_control() function. A local  user can trigger a use-after-free error and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Linux kernel: 5.10 - 6.8 rc5

CPE2.3 External links

https://git.kernel.org/stable/c/2f03fc340cac9ea1dc63cbf8c93dd2eb0f227815
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.212
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.151
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.81
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.21
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.9
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8


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.



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