kernel: md: fix mddev uaf while iterating all_mddevs list

A flaw was discovered in the Linux kernel’s MD multiple device subsystem during iteration over the allmddevs list in functions such as mdnotifyreboot and mdexit. The code used listforeachentrysafe, but released locks before completing reference counting, allowing concurrent deletion and freeing o...

PT-2025-16766

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A use-after-free vulnerability has been identified in the Linux kernel. The issue occurs while iterating the all mddevs list from md notify reboot and md exit, where list for each entry...