Uninitialized Delayed Work Flushing Warning Fix

CVE-2024-50280

What is CVE-2024-50280?

A vulnerability in the Linux kernel's dm cache implementation can lead to unexpected warnings and potential failures during cache creation. Specifically, the issue arises when the system attempts to flush an uninitialized delayed work in the context of handling cache creation errors, such as in cases of superblock checksum errors. Developers have identified specific reproduction steps and kernel logs that illustrate the problem, and the resolution involves adjustments to the error handling mechanisms to ensure safe operation and prevent concurrent execution issues.

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References