CVE-2025-22038

In the Linux kernel, the following vulnerability has been resolved: ksmbd: validate zero num_subauth before sub_auth is accessed Access psid->sub_auth[psid->num_subauth - 1] without checking if num_subauth is non-zero leads to an out-of-bounds read. This patch adds a validation step to ensure num_subauth != 0 before sub_auth is accessed.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/0e36a3e080d6d8bd7a34e089345d043da4ac8283	Patch
https://git.kernel.org/stable/c/3ac65de111c686c95316ade660f8ba7aea3cd3cc	Patch
https://git.kernel.org/stable/c/56de7778a48560278c334077ace7b9ac4bfb2fd1	Patch
https://git.kernel.org/stable/c/68c6c3142bfcdb049839d40a9a59ebe8ea865002	Patch
https://git.kernel.org/stable/c/bf21e29d78cd2c2371023953d9c82dfef82ebb36	Patch
https://git.kernel.org/stable/c/c8bfe1954a0b89e7b29b3a3e7f4c5e0ebd295e20	Patch
https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html

Configurations

Configuration 1 (hide)

OR	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::

History

No history.

Information

Published : 2025-04-16 15:15

Updated : 2025-11-03 20:17

NVD link : CVE-2025-22038

Mitre link : CVE-2025-22038

CVE.ORG link : CVE-2025-22038

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-125

Out-of-bounds Read

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