#VU108346 Division by zero in Linux kernel - CVE-2025-37769

Vulnerability identifier: #VU108346

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-2025-37769

CWE-ID: CWE-369

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 a division by zero error within the smu_v11_0_set_fan_speed_rpm() function in drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.14, 6.14.1, 6.14.2, 6.14.3

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External links
https://git.kernel.org/stable/c/63a150400194592206817124268ff6f43947e8c9
https://git.kernel.org/stable/c/7ba88b5cccc1a99c1afb96e31e7eedac9907704c
https://git.kernel.org/stable/c/de2cba068c9c648503973b57696d035cfe58a9f6
https://git.kernel.org/stable/c/de6f8e0534cfabc528c969d453150ca90b24fb01
https://git.kernel.org/stable/c/fc9d55377353321e78f9e108d15f72a17e8c6ee2
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14.4

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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.