openvswitch: use RCU protection in ovs_vport_cmd_fill_info()

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Summary

CVECVE-2025-21761
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2025-02-27 03:15:16 UTC
Updated2026-05-12 13:16:35 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 7.8 HIGH from ADP

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Problem Types: CWE-416 | CWE-416 CWE-416 Use After Free

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 9354d452034273a50a4fd703bea31e5d6b1fc20b e85a25d1a9985645e796039e843d1de581d2de1e git Not specified
CNA Linux Linux affected 9354d452034273a50a4fd703bea31e5d6b1fc20b a8816b3f1f151373fd30f1996f00480126c8bb11 git Not specified
CNA Linux Linux affected 9354d452034273a50a4fd703bea31e5d6b1fc20b a884f57600e463f69d7b279c4598b865260b62a1 git Not specified
CNA Linux Linux affected 9354d452034273a50a4fd703bea31e5d6b1fc20b 7e01abc34e87abd091e619161a20f54ed4e3e2da git Not specified
CNA Linux Linux affected 9354d452034273a50a4fd703bea31e5d6b1fc20b 8ec57509c36c8b9a23e50b7858dda0c520a2d074 git Not specified
CNA Linux Linux affected 9354d452034273a50a4fd703bea31e5d6b1fc20b a849a10de5e04d798f7f286a2f1ca174719a617a git Not specified
CNA Linux Linux affected 9354d452034273a50a4fd703bea31e5d6b1fc20b 5828937742af74666192835d657095d95c53dbd0 git Not specified
CNA Linux Linux affected 9354d452034273a50a4fd703bea31e5d6b1fc20b 90b2f49a502fa71090d9f4fe29a2f51fe5dff76d git Not specified
CNA Linux Linux affected 4.15 Not specified
CNA Linux Linux unaffected 4.15 semver Not specified
CNA Linux Linux unaffected 5.4.291 5.4.* semver Not specified
CNA Linux Linux unaffected 5.10.235 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.179 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.129 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.79 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.16 6.12.* semver Not specified
CNA Linux Linux unaffected 6.13.4 6.13.* semver Not specified
CNA Linux Linux unaffected 6.14 * original_commit_for_fix Not specified
ADP Siemens SIMATIC S7-1500 TM MFP - GNU/Linux Subsystem affected * custom Not specified

References

ReferenceSourceLinkTags
lists.debian.org/debian-lts-announce/2025/05/msg00030.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
cert-portal.siemens.com/productcert/html/ssa-265688.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/a884f57600e463f69d7b279c4598b865260b62a1 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/a8816b3f1f151373fd30f1996f00480126c8bb11 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/8ec57509c36c8b9a23e50b7858dda0c520a2d074 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/e85a25d1a9985645e796039e843d1de581d2de1e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/90b2f49a502fa71090d9f4fe29a2f51fe5dff76d 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/a849a10de5e04d798f7f286a2f1ca174719a617a 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
git.kernel.org/stable/c/5828937742af74666192835d657095d95c53dbd0 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2025/03/msg00028.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org
git.kernel.org/stable/c/7e01abc34e87abd091e619161a20f54ed4e3e2da 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org Patch
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