cve 2024 39476

CVE-2024-39476 is a Linux kernel vulnerability involving a deadlock in the md/raid5 subsystem, where the raid5d() function could wait indefinitely for itself to clear the MD_SB_CHANGE_PENDING flag. This stability issue affects systems using RAID5 arrays and has been patched in upstream Linux. Microsoft has confirmed that Azure Linux is a carrier of the affected code and requires remediation. However, this does not imply that other Microsoft products are automatically safe; administrators should verify their specific distributions and cloud images. The tag covers discussions on patch guidance, distribution impact, and practical steps for incident responders and system administrators to address the deadlock and ensure system stability.