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Vulnerability record · CVE-2025-40203 · published 12 November 2025

CVE-2025-40203: In the Linux kernel, the following vulnerability has been resolved: listmount: don't call path_put() under na…

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.

7.8 CVSS 3.1 High EPSS 0.14% · top 97.2% Deferred
7.8CVSS 3.1 base score
0.14%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
30 Jul 2026Last modified by NVD

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.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

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Source: NIST National Vulnerability Database (record CVE-2025-40203), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.