Input validation error in Linux kernel hwss dcn20 driver



| Updated: 2025-05-10
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2025-37870
CWE-ID CWE-20
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) Input validation error

EUVDB-ID: #VU108902

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-2025-37870

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation within the dcn401_enable_stream() function in drivers/gpu/drm/amd/display/dc/hwss/dcn401/dcn401_hwseq.c, within the dcn20_enable_stream() function in drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.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 - 6.14.3

CPE2.3 External links

https://git.kernel.org/stable/c/0363c03672cd3191f037905bf981eb523a3b71b1
https://git.kernel.org/stable/c/04bf4f2a497e9877c425c5124652e61fb8a1a0aa
https://git.kernel.org/stable/c/8058061ed9d6bc259d1e678607b07d259342c08f
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.25
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14.4


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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