Linux Kernel Vulnerability in IMX Mailbox Channel Management

CVE-2026-98903

What is CVE-2026-98903?

The vulnerability in the Linux kernel affects the IMX mailbox management, where a race condition can occur during the shutdown of message transmission channels. This flaw leads to the possibility of enabling RX events while the system is attempting to shut down an interrupt handler, which can lead to unexpected behavior on shared handlers. The introduction of a shutdown flag aims to mitigate this issue, by ensuring that interrupts are properly managed even during concurrent operations, enhancing overall system stability and security.

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