Lock Dependency Issue in Linux Kernel Affecting NVMe Multipath Functionality
CVE-2025-68218
What is CVE-2025-68218?
A vulnerability in the Linux kernel's NVMe multipath functionality has been identified, where a lock dependency could lead to potential deadlock conditions during partition scans. The issue manifests as a lockdep WARN, suggesting that improper synchronization between disk operations, kblockd workqueue completions, and partition scanning can occur. To mitigate this risk, the kernel developers have modified the handling of the partition_scan_work, ensuring it operates independently from the kblockd workqueue. This adjustment is vital for maintaining system stability and performance during disk operations.
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Affected Version(s)
Linux 60de2e03f984cfbcdc12fa552f95087c35a05a98 < 89456dab7ba5ab63d60945440926673a3205e829
Linux 4a57f42e5ed42cb8f1beb262c4f6d3e698939e4e
Linux 1f021341eef41e77a633186e9be5223de2ce5d48