Astra Linux – vulnerability in linux-6.1, linux-5.15, linux-5.10

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

Linux Distros Unpatched Vulnerability : CVE-2025-21887

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

kernel: ovl: fix UAF in ovl_dentry_update_reval by moving dput() in ovl_link_up

A use after free vulnerability exists in the linux kernel such that dputupper is being called before ovldentryupdatereval, while upper-dflags was still accessed in ovldentryremote...

kernel: ovl: fix UAF in ovl_dentry_update_reval by moving dput() in ovl_link_up

A use after free vulnerability exists in the linux kernel such that dputupper is being called before ovldentryupdatereval, while upper-dflags was still accessed in ovldentryremote...

kernel: ovl: fix UAF in ovl_dentry_update_reval by moving dput() in ovl_link_up

A use after free vulnerability exists in the linux kernel such that dputupper is being called before ovldentryupdatereval, while upper-dflags was still accessed in ovldentryremote...

ovl: fix UAF in ovl_dentry_update_reval by moving dput() in ovl_link_up

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Linux kernel Overlayfs Buffer Overflow DoS

The vulnerability of the ovldentryupdatereval function in the fs/overlayfs/copyup.c file of the Linux kernel file system is related to the use of memory after it is freed. Exploiting this vulnerability could allow an attacker to cause a service failure...

SUSE CVE-2025-21887

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...

DEBIAN-CVE-2025-21887

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...

PT-2025-13224

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The issue is caused by a use-after-free error in the ovl dentry update reval function. This error occurs because dputupper is called before ovl dentry update reval, while upper-d flags i...