CVE-2024-40920 - Vulnerability Details - OpenCVE

In the Linux kernel, the following vulnerability has been resolved:

net: bridge: mst: fix suspicious rcu usage in br_mst_set_state

I converted br_mst_set_state to RCU to avoid a vlan use-after-free
but forgot to change the vlan group dereference helper. Switch to vlan
group RCU deref helper to fix the suspicious rcu usage warning.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00033.

Key SSVC decision points have not yet been added.

Vendors	Products
Linux	Linux Kernel

No data.

No data.

OpenCVE Enrichment is a feature of OpenCVE that uses AI to automatically link vendors and products to CVEs. Learn more on GitHub.

Vendors	Products
Linux	Linux Kernel

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://git.kernel.org/stable/c/406bfc04b01ee47e4c626f77ecc7d9f85135b166
https://git.kernel.org/stable/c/546ceb1dfdac866648ec959cbc71d9525bd73462
https://git.kernel.org/stable/c/7caefa2771722e65496d85b62e1dc4442b7d1345
https://git.kernel.org/stable/c/caaa2129784a04dcade0ea92c12e6ff90bbd23d8
https://lore.kernel.org/linux-cve-announce/2024071212-CVE-2024-40920-c766@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2024-40920
https://www.cve.org/CVERecord?id=CVE-2024-40920

History

Thu, 12 Sep 2024 20:30:00 +0000

Type	Values Removed	Values Added
Metrics	ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Wed, 11 Sep 2024 13:30:00 +0000

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-07-12T12:25:02.222Z

Updated: 2025-05-04T12:57:14.602Z

Reserved: 2024-07-12T12:17:45.582Z

Link: CVE-2024-40920

Vulnrichment

Updated: 2024-08-02T04:39:55.750Z

NVD

Status : Awaiting Analysis

Published: 2024-07-12T13:15:15.003

Modified: 2024-11-21T09:31:51.670

Link: CVE-2024-40920

Redhat

Severity : Moderate

Publid Date: 2024-07-12T00:00:00Z

Links: CVE-2024-40920 - Bugzilla

OpenCVE Enrichment

Updated: 2025-07-13T11:23:05Z

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