SB2025040284 - Improper locking in Linux kernel gpio driver
Published: April 2, 2025 Updated: May 11, 2025
Security Bulletin ID
SB2025040284
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper locking (CVE-ID: CVE-2025-21912)
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.
References
- 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