PT-2025-51699 · Linux+3 · Linux Kernel+3
CVE-2025-68295
·
Published
2025-11-24
·
Updated
2026-08-30
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The Linux kernel contains a memory leak in the
cifs construct tcon() function within the SMB client implementation. This leak occurs when a multiuser mount is used with a specified domain and cifscreds. Specifically, the domainname is not freed before exiting cifs construct tcon(). The issue was identified through kmemleak analysis during testing with a CIFS mount, user switching, credential addition, and subsequent unmounting. The vulnerable function is cifs construct tcon().Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Missing Release of Resource after Effective Lifetime
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Weakness Enumeration
Related Identifiers
Affected Products
Debian
Linuxmint
Linux Kernel
Ubuntu