Linux Kernel Vulnerability in Ring Buffer Management by Vendor

CVE-2026-80730

What is CVE-2026-80730?

A vulnerability in the Linux kernel's ring buffer management has been discovered, where a faulty check in the cleanup loop can lead to a kernel crash. During the cleanup of threads, an error pointer stored in the ring buffer is not properly validated, resulting in the dereference of an invalid pointer when calling kthread_stop(). This flaw can cause a kernel panic, leading to potential system instability and threats to the operating environment.

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