NULL pointer dereference in Linux kernel pinctrl nuvoton driver



| Updated: 2025-05-11
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2025-21982
CWE-ID CWE-476
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) NULL pointer dereference

EUVDB-ID: #VU106679

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-2025-21982

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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

The vulnerability exists due to NULL pointer dereference within the npcm8xx_gpio_fw() function in drivers/pinctrl/nuvoton/pinctrl-npcm8xx.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 - 6.13.7

CPE2.3 External links

https://git.kernel.org/stable/c/6a08a86e5aff8e65368ccd463348fdda26100821
https://git.kernel.org/stable/c/a585f6ea42ec259a9a57e3e2580fa527c92187d0
https://git.kernel.org/stable/c/acf40ab42799e4ae1397ee6f5c5941092d66f999
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.20
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.8
https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14


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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