CVE-2025-40203Improper Control of a Resource Through its Lifetime in Linux

Severity
5.8MEDIUM
No vector
EPSS
0.0%
top 94.67%
CISA KEV
Not in KEV
Exploit
No known exploits
Timeline
PublishedNov 12
Latest updateFeb 24

Description

In the Linux kernel, the following vulnerability has been resolved: listmount: don't call path_put() under namespace semaphore Massage listmount() and make sure we don't call path_put() under the namespace semaphore. If we put the last reference we're fscked.

Affected Packages5 packages

Linuxlinux/linux_kernel6.8.06.12.54+1
Debianlinux/linux_kernel< 6.12.57-1+1
Ubuntulinux/linux_kernel< 6.17.0-14.14
CVEListV5linux/linuxb4c2bea8ceaa50cd42a8f73667389d801a3ecf2d659874b7ee4976ad9ce476e07fd36bc67b3537f1+3
debiandebian/linux< linux 6.17.6-1 (forky)

🔴Vulnerability Details

8
OSV
linux-azure vulnerabilities2026-02-24
OSV
linux-oem-6.17 vulnerabilities2026-02-17
OSV
linux-aws, linux-oracle vulnerabilities2026-02-17
OSV
linux-gcp vulnerabilities2026-02-12
OSV
linux, linux-raspi, linux-realtime vulnerabilities2026-02-12

📋Vendor Advisories

6
Ubuntu
Linux kernel (Azure) vulnerabilities2026-02-24
Ubuntu
Linux kernel (OEM) vulnerabilities2026-02-17
Ubuntu
Linux kernel (GCP) vulnerabilities2026-02-12
Ubuntu
Linux kernel vulnerabilities2026-02-12
Red Hat
kernel: listmount: don't call path_put() under namespace semaphore2025-11-12