ROS-20260120-7316

A vulnerability in the ovldentryupdatereval function of the fs/overlayfs/copyup.c module of the Linux kernel file system is related to the use of memory after it has been freed. Exploitation of the vulnerability could allow an attacker to cause a denial of service...

CVE-2025-21887: Use After Free

In the Linux kernel, the following vulnerability has been resolved: ovl: fix UAF in ovldentryupdatereval by moving dput in ovllinkup The issue was caused by dputupper being called before ovldentryupdatereval, while upper-dflags was still accessed in ovldentryremote. Move dputupper after its last...