CVE-2025-21761

In the Linux kernel, the following vulnerability has been resolved: openvswitch: use RCU protection in ovs_vport_cmd_fill_info() ovs_vport_cmd_fill_info() can be called without RTNL or RCU. Use RCU protection and dev_net_rcu() to avoid potential UAF.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/5828937742af74666192835d657095d95c53dbd0	Patch
https://git.kernel.org/stable/c/7e01abc34e87abd091e619161a20f54ed4e3e2da	Patch
https://git.kernel.org/stable/c/8ec57509c36c8b9a23e50b7858dda0c520a2d074	Patch
https://git.kernel.org/stable/c/90b2f49a502fa71090d9f4fe29a2f51fe5dff76d	Patch
https://git.kernel.org/stable/c/a849a10de5e04d798f7f286a2f1ca174719a617a	Patch
https://git.kernel.org/stable/c/a8816b3f1f151373fd30f1996f00480126c8bb11	Patch
https://git.kernel.org/stable/c/a884f57600e463f69d7b279c4598b865260b62a1	Patch
https://git.kernel.org/stable/c/e85a25d1a9985645e796039e843d1de581d2de1e	Patch
https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html
https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
https://cert-portal.siemens.com/productcert/html/ssa-265688.html
https://cert-portal.siemens.com/productcert/html/ssa-784472.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::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel::::::::
	cpe:2.3:o:linux:linux_kernel:6.14:rc1::::::
	cpe:2.3:o:linux:linux_kernel:6.14:rc2::::::

History

15 Oct 2026, 02:17

Type	Values Removed	Values Added
References		() https://cert-portal.siemens.com/productcert/html/ssa-784472.html -

Information

Published : 2025-02-27 03:15

Updated : 2026-10-15 02:17

NVD link : CVE-2025-21761

Mitre link : CVE-2025-21761

CVE.ORG link : CVE-2025-21761

JSON object : View

Products Affected

linux

linux_kernel

CWE

CWE-416

Use After Free

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