CVE-2026-53341 fhandle: fix UAF due to unlocked ->mnt_ns read in may_decode_fh()

In the Linux kernel, the following vulnerability has been resolved: fhandle: fix UAF due to unlocked -mntns read in maydecodefh maydecodefh accesses mount::mntns without holding any locks; that means the mount can concurrently be unmounted, and the mntnamespace can concurrently be freed after an...

Astra Linux – Vulnerability in Linux 5.10

In the Linux kernel, the following vulnerability has been resolved: fanotify: Validate the return value of mntnsfromdentry before dereferencing it. The function dofanotifymark does not validate whether mntnsfromdentry returns NULL before dereferencing mntns-userns. This causes a NULL pointer...

Linux mnt_ns_release Heap Buffer Overflow DoS

The vulnerability of the mntnsrelease function in the Linux operating system’s kernel is related to pointer manipulation. Exploiting this vulnerability can allow an attacker to cause a service failure...

Linux Distros Unpatched Vulnerability : CVE-2025-40195

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - mount: handle NULL values in mntnsrelease When calling in listmount mntnsrelease may be passed a NULL pointer. Handle that case gracefully. CVE-2025-40195 Note...

CVE-2025-40195

In the Linux kernel, the following vulnerability has been resolved: mount: handle NULL values in mntnsrelease When calling in listmount mntnsrelease may be passed a NULL pointer. Handle that case gracefully...

CVE-2025-40072 fanotify: Validate the return value of mnt_ns_from_dentry() before dereferencing

In the Linux kernel, the following vulnerability has been resolved: fanotify: Validate the return value of mntnsfromdentry before dereferencing The function dofanotifymark does not validate if mntnsfromdentry returns NULL before dereferencing mntns-userns. This causes a NULL pointer dereference i...