#VU107733 Improper locking in Linux kernel - CVE-2025-38104

Vulnerability identifier: #VU107733

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-2025-38104

CWE-ID: CWE-667

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 improper locking within the amdgpu_virt_rlcg_reg_rw() function in drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c, within the amdgpu_device_init() function in drivers/gpu/drm/amd/amdgpu/amdgpu_device.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 6.13, 6.13.1, 6.13.2, 6.13.3, 6.13.4, 6.13.5, 6.13.6, 6.13.7, 6.13.8, 6.13.9, 6.13.10, 6.14, 6.14.1

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External links
https://git.kernel.org/stable/c/1c0378830e42c98acd69e0289882c8637d92f285
https://git.kernel.org/stable/c/5c1741a0c176ae11675a64cb7f2dd21d72db6b91
https://git.kernel.org/stable/c/dc0297f3198bd60108ccbd167ee5d9fa4af31ed0
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.11
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14.2

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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.