CVE-2025-68218: nvme-multipath: fix lockdep WARN due to partition scan work
In the Linux kernel, the following vulnerability has been resolved:
nvme-multipath: fix lockdep WARN due to partition scan work
Blktests test cases nvme/014, 057 and 058 fail occasionally due to a lockdep WARN. As reported in the Closes tag URL, the WARN indicates that a deadlock can happen due to the dependency among disk->openmutex, kblockd workqueue completion and partitionscanwork completion.
To avoid the lockdep WARN and the potential deadlock, cut the dependency by running the partitionscanwork not by kblockd workqueue but by nvmewq.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2025-68218?
CVE-2025-68218 is considered to have a moderate severity due to potential deadlocks affecting system stability.
How do I fix CVE-2025-68218?
To fix CVE-2025-68218, update your Linux kernel to the latest stable release that includes the patch for this vulnerability.
What are the potential impacts of CVE-2025-68218?
The potential impacts of CVE-2025-68218 include system hangs or crashes due to deadlocks during NVMe multipath operations.
Which Linux kernel versions are affected by CVE-2025-68218?
CVE-2025-68218 affects various Linux kernel versions, particularly those using the NVMe multipath feature.
Is there a workaround for CVE-2025-68218?
Currently, there is no widely recommended workaround for CVE-2025-68218 other than updating to a patched kernel version.