Input validation error in Linux kernel - CVE-2025-38412

Detailed vulnerability 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 init_bios_attributes() function in drivers/platform/x86/dell/dell-wmi-sysman/sysman.c, within the current_value_show() function in drivers/platform/x86/dell/dell-wmi-sysman/string-attributes.c, within the is_enabled_show() function in drivers/platform/x86/dell/dell-wmi-sysman/passobj-attributes.c, within the current_value_show() function in drivers/platform/x86/dell/dell-wmi-sysman/int-attributes.c, within the current_value_show() function in drivers/platform/x86/dell/dell-wmi-sysman/enum-attributes.c. A local user can perform a denial of service (DoS) attack.

How to mitigate CVE-2025-38412

Sources

• https://git.kernel.org/stable/c/0deb3eb78ebf225cb41aa9b2b2150f46cbfd359e
• https://git.kernel.org/stable/c/5df3b870bc389a1767c72448a3ce1c576ef4deab
• https://git.kernel.org/stable/c/68e9963583d11963ceca5d276e9c44684509f759
• https://git.kernel.org/stable/c/92c2d914b5337431d885597a79a3a3d9d55e80b7
• https://git.kernel.org/stable/c/aaf847dcb4114fe8b25d4c1c790bedcb6088cb3d
• https://git.kernel.org/stable/c/eb617dd25ca176f3fee24f873f0fd60010773d67