CVE-2026-53083

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.14.0-13195-g967e8def1100

Description An issue exists in the Linux kernel where the bpf fd array map clear() function fails to yield the processor during its execution loop. For PROG ARRAY maps containing a large number of entries, the loop repeatedly calls the prog array map poke run() function, which is computationally expensive. The absence of a cond resched() call prevents the system from yielding, potentially leading to RCU stalls under heavy load. RCU (Read-Copy-Update) is a synchronization mechanism that allows multiple readers to access data while it is being updated.

Recommendations Update the Linux kernel to version 6.14.0-13195-g967e8def1100 or later.