PT-2025-38545 · Linux+4 · Linux Kernel+4
Published
2025-09-19
·
Updated
2026-05-07
·
CVE-2025-39838
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/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
The Linux kernel contains a flaw where a NULL pointer dereference can occur during UTF16 conversion within the CIFS implementation. Specifically, a NULL pointer can be passed to the
cifs sfu make node function without proper checks, leading to a crash when dereferenced in cifs local to utf16 bytes after being passed through cifs strndup to utf16. The issue was discovered by Linux Verification Center (linuxtesting.org) with SVACE.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
NULL Pointer Dereference
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Weakness Enumeration
Related Identifiers
Affected Products
Debian
Linuxmint
Linux Kernel
Suse
Ubuntu