gpio: xilinx: Convert gpio_lock to raw spinlock

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SUSE CVE-2025-21684

In the Linux kernel, the following vulnerability has been resolved: gpio: xilinx: Convert gpiolock to raw spinlock irqchip functions may be called in raw spinlock context. Therefore, we must also use a raw spinlock for our own internal locking. This fixes the following lockdep splat: 5.349336...

CVE-2025-21684 gpio: xilinx: Convert gpio_lock to raw spinlock

In the Linux kernel, the following vulnerability has been resolved: gpio: xilinx: Convert gpiolock to raw spinlock irqchip functions may be called in raw spinlock context. Therefore, we must also use a raw spinlock for our own internal locking. This fixes the following lockdep splat: 5.349336...

CVE-2025-21684

CVE-2025-21684 affects the Linux kernel GPIO xilinx driver. Root cause: irq_chip locking used gpio_lock (a normal spinlock) in contexts that may run under raw spinlock requirements. The fix: convert gpio_lock to a raw spinlock and apply it in the xilinx GPIO code path (e.g., xgpio_irq_unmask), ad...

PT-2025-6032 · Linux +5 · Linux Kernel +5

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 6.6.73/6.12.10 Description: The issue is related to incorrect locking of resources in the Linux kernel, specifically with the gpio lock in the Xilinx GPIO driver. This can lead to a denial of service. The irq ch...