CVE-2024-40920
Medium
Elevated severity or exploit probability.
CVSS base
7.1
HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
EPSS — probability of exploitation (30 days)
0.4%
35.7th percentile
CISA KEV
Not listed
Weakness / dates
CWE-416
Published 2024-07-12 · modified 2026-08-04
CVSS breakdown
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
| Attack Vector | A | Adjacent |
| Attack Complexity | L | Low |
| Privileges Required | N | None |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | L | Low |
| Integrity | N | None |
| Availability | H | High |
Timeline
- 2024-07-12 — Published (NVD)
- 2026-08-04 — Last modified (NVD)
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.
Affected
References
- 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://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://lists.debian.org/debian-lts-announce/2025/01/msg00001.html