SB2025100424 - NULL pointer dereference in Linux kernel rfkill
Published: October 4, 2025
Security Bulletin ID
SB2025100424
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) NULL pointer dereference (CVE-ID: CVE-2025-39937)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the rfkill_gpio_acpi_probe() function in net/rfkill/rfkill-gpio.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/184f608a68f96794e8fe58cd5535014d53622cde
- https://git.kernel.org/stable/c/21a39b958b4bcf44f7674bfbbe1bbb8cad0d842d
- https://git.kernel.org/stable/c/21ba85d9d508422ca9e6698463ff9357c928c22d
- https://git.kernel.org/stable/c/47ade5f9d70b23a119ec20b1c6504864b2543a79
- https://git.kernel.org/stable/c/689aee35ce671aab752f159e5c8e66d7685e6887
- https://git.kernel.org/stable/c/8793e7a8e1b60131a825457174ed6398111daeb7
- https://git.kernel.org/stable/c/ada2282259243387e6b6e89239aeb4897e62f051
- https://git.kernel.org/stable/c/b6f56a44e4c1014b08859dcf04ed246500e310e5