#VU106792 Improper locking in Linux kernel - CVE-2025-21912
Published: April 2, 2025 / Updated: May 11, 2025
Vulnerability identifier: #VU106792
Vulnerability risk: Low
CVSSv4.0: 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-2025-21912
CWE-ID: CWE-667
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
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 gpio_rcar_config_interrupt_input_mode(), gpio_rcar_config_general_input_output_mode(), gpio_rcar_get_multiple(), gpio_rcar_set(), gpio_rcar_set_multiple() and gpio_rcar_probe() functions in drivers/gpio/gpio-rcar.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/3e300913c42041e81c5b17a970c4e078086ff2d1
- https://git.kernel.org/stable/c/51ef3073493e2a25dced05fdd59dfb059e7e284d
- https://git.kernel.org/stable/c/7c1f36f9c9aca507d317479a3d3388150ae40a87
- https://git.kernel.org/stable/c/b42c84f9e4ec5bc2885e7fd80c79ec0352f5d2af
- https://git.kernel.org/stable/c/c10365031f16514a29c812cd909085a6e4ea4b61
- https://git.kernel.org/stable/c/f02c41f87cfe61440c18bf77d1ef0a884b9ee2b5
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.179
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.131
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.12.19
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.13.7
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.83