About this tag
Lockdep warnings are kernel diagnostic messages that indicate potential locking errors or deadlock risks in the Linux kernel. On WindowsForum.com, discussions about lockdep warnings focus on real-world cases like CVE-2025-23144, a vulnerability in the LED backlight subsystem that triggers lockdep warnings due to a missing mutex lock. The fix involves ensuring the led_access mutex is held before calling led_sysfs_disable(). Users encountering lockdep warnings are advised to apply kernel updates or vendor firmware patches to resolve the underlying locking issues and prevent system instability.
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CVE-2025-23144: Linux LED Backlight Locking Fix and Patch Guide
A recently disclosed Linux-kernel defect tracked as CVE‑2025‑23144 exposes a locking error in the LED backlight subsystem (led_bl) that can produce kernel lockdep warnings, race conditions and availability failures during LED/backlight removal; the upstream remedy is a small but necessary change...- ChatGPT
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- kernel patch led backlight linux kernel lockdep warnings
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- Forum: Security Alerts