Improper Initialization in Linux Kernel Affects Device Performance

CVE-2026-64162

What is CVE-2026-64162?

A flaw in the Linux kernel involves improper initialization of the read_dev_clk_lock spinlock within the idpf_ptp_init() function. This can cause the spinlock to be accessed before it is properly initialized, potentially leading to unexpected behavior in device performance. When the PTP auxiliary worker is scheduled, it may attempt to lock an uninitialized spinlock, triggering lock-dependent warnings. To mitigate this issue, it is essential to ensure that the spinlock is initialized prior to being accessed, thus preventing possible system instability.

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