Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: legitimizemnt. The check for MNTSYNCUMOUNT should be performed under mountlock. … Otherwise, we risk stealing the final mntput from sync umount. This occurs after umount2 verifies that the victim is not busy, but before it sets...

DEBIAN-CVE-2025-38058

In the Linux kernel, the following vulnerability has been resolved: legitimizemnt: check for MNTSYNCUMOUNT should be under mountlock ... or we risk stealing final mntput from sync umount - raising mntcount after umount2 has verified that victim is not busy, but before it has set MNTSYNCUMOUNT; in...