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CVE-2024-40920 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:7.8 HIGHVector:CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CNA: kernel.orgCVSS-B:7.1 HIGHVector:CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://git.kernel.org/stable/c/406bfc04b01ee47e4c626f77ecc7d9f85135b166	kernel.org	Patch
https://git.kernel.org/stable/c/546ceb1dfdac866648ec959cbc71d9525bd73462	kernel.org	Patch
https://git.kernel.org/stable/c/7caefa2771722e65496d85b62e1dc4442b7d1345	kernel.org	Patch
https://git.kernel.org/stable/c/caaa2129784a04dcade0ea92c12e6ff90bbd23d8	kernel.org	Patch
https://git.kernel.org/stable/c/406bfc04b01ee47e4c626f77ecc7d9f85135b166	CVE	Patch
https://git.kernel.org/stable/c/546ceb1dfdac866648ec959cbc71d9525bd73462	CVE	Patch
https://git.kernel.org/stable/c/7caefa2771722e65496d85b62e1dc4442b7d1345	CVE	Patch
https://git.kernel.org/stable/c/caaa2129784a04dcade0ea92c12e6ff90bbd23d8	CVE	Patch
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html	CVE

see all 9 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-416	Use After Free	[email protected]

Affected Products

Product	Versions
linux linux kernel	>= 6.1.93, < 6.1.95 >= 6.6.33, < 6.6.35 >= 6.8.12, < 6.9 >= 6.9.3, < 6.9.6 6.10 rc1
CPE cpe:2.3:o:linux:linux_kernel:::::::: cpe:2.3:o:linux:linux_kernel:6.10:rc1:::::: cpe:2.3:o:linux:linux_kernel:6.10:rc2:::::: cpe:2.3:o:linux:linux_kernel:6.10:rc3:::::: Remediation No remediation found in references.

Change History

7 change records found show changes

Date	Action	Recorded By
Aug 4, 2026	CVE Modified	kernel.org
Jun 17, 2026	CVE Modified	CISA-ADP
Jun 17, 2026	CVE Modified	kernel.org
Nov 3, 2025	CVE Modified	CVE
Sep 17, 2025	Initial Analysis	[email protected]
Nov 21, 2024	CVE Modified	CVE
Jul 12, 2024	New CVE Received	kernel.org