Concurrency Issue in Linux Kernel Affecting Buffer Management

CVE-2026-53380

What is CVE-2026-53380?

A vulnerability in the Linux kernel's buffer management system allows for concurrent modifications to the buffer list. The issue arises from a lack of proper lock management in the rzv2h_ivc_transfer_buffer() function, where a buffer is removed from the list without holding the necessary spinlock. This can result in race conditions leading to potential data corruption and system instability. A fix has been implemented to ensure that buffer removal is conducted within a properly protected critical section, improving overall system reliability.

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