PT-2025-49386 · Linux+3 · Linux Kernel+3
CVE-2025-40285
·
Published
2025-10-12
·
Updated
2026-08-30
CVSS v3.1
7.5
High
| Vector | AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux Kernel (affected versions not specified)
Description
A reference count leak exists in the
smb2 sess setup() function within the SMB server component of the Linux kernel. Specifically, the reference count of ksmbd session can leak when a session requires reconnection. This is addressed by adding the missing ksmbd user session put() function call.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
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Weakness Enumeration
Related Identifiers
Affected Products
Debian
Linux Kernel
Linuxmint
Ubuntu