Bug 2414731 (CVE-2025-40203) - CVE-2025-40203 kernel: listmount: don't call path_put() under namespace semaphore
Summary: CVE-2025-40203 kernel: listmount: don't call path_put() under namespace semap...
Keywords:
Status: NEW
Alias: CVE-2025-40203
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-11-12 23:03 UTC by OSIDB Bzimport
Modified: 2025-11-13 11:14 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2025-11-12 23:03:18 UTC 
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.
Comment 1 Alexander B 2025-11-13 11:10:26 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025111247-CVE-2025-40203-c83b@gregkh/T
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