Vulnerability of the acpi_video_switch_brightness() function (drivers/acpi/acpi_video.c) in the Linux kernel, allowing a hacker to trigger a service failure

The vulnerability of the acpivideoswitchbrightness function drivers/acpi/acpivideo.c in the Linux kernel is related to the use of memory after it is freed. Exploiting this vulnerability could allow an attacker to cause a system failure...

CVE-2025-40211: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ACPI: video: Fix use-after-free in acpivideoswitchbrightness The switchbrightnesswork delayed work accesses device-brightness and device-backlight, freed by acpivideodevunregisterbacklight during device removal. If the work...