Memory Freeing Issue in Linux Kernel IB/hfi1 Driver

CVE-2023-53488

What is CVE-2023-53488?

A vulnerability exists in the Linux kernel’s IB/hfi1 driver related to improper memory management during the hotplug removal process. When a hotplug removal occurs, pending update counters may continue to run after the associated memory has been freed, which could lead to unexpected behavior or system panic. To mitigate this issue, it is crucial to cancel the update counters work before memory is deallocated, ensuring system stability and reliability.

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