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Vulnerability record · CVE-2023-53990 · published 24 December 2025

CVE-2023-53990: In the Linux kernel, the following vulnerability has been resolved: SMB3: Add missing locks to protect deferr…

In the Linux kernel, the following vulnerability has been resolved: SMB3: Add missing locks to protect deferred close file list cifs_del_deferred_close function has a critical section which modifies the deferred close file list. We must acquire deferred_lock before calling cifs_del_deferred_close function.

7.8 CVSS 3.1 High EPSS 0.15% · top 96.2% Deferred
7.8CVSS 3.1 base score
0.15%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
4 Aug 2026Last modified by NVD

Description

In the Linux kernel, the following vulnerability has been resolved: SMB3: Add missing locks to protect deferred close file list cifs_del_deferred_close function has a critical section which modifies the deferred close file list. We must acquire deferred_lock before calling cifs_del_deferred_close function.

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-2023-53990), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.