CVE-2023-53381
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-18

Last updated on: 2025-12-11

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: NFSD: fix leaked reference count of nfsd4_ssc_umount_item The reference count of nfsd4_ssc_umount_item is not decremented on error conditions. This prevents the laundromat from unmounting the vfsmount of the source file. This patch decrements the reference count of nfsd4_ssc_umount_item on error.
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Meta Information
Published
2025-09-18
Last Modified
2025-12-11
Generated
2026-05-07
AI Q&A
2025-09-18
EPSS Evaluated
2026-05-05
NVD
CVE-2023-53381
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 5.14 (inc) to 5.15.154 (exc)
linux linux_kernel From 5.16 (inc) to 6.1.16 (exc)
linux linux_kernel From 6.2 (inc) to 6.2.3 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-NVD-CWE-Other
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AI Powered Q&A
Can you explain this vulnerability to me?

This vulnerability involves a flaw in the Linux kernel's NFSD component where the reference count of nfsd4_ssc_umount_item is not properly decremented when an error occurs. This causes a leaked reference count, which prevents the system's laundromat process from unmounting the virtual filesystem mount (vfsmount) of the source file. The issue is fixed by ensuring the reference count is decremented on error.


How can this vulnerability impact me? :

The vulnerability can cause the system to fail to unmount certain virtual filesystem mounts properly due to leaked reference counts. This could lead to resource leaks or system instability related to filesystem management.


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