CVE-2024-40920
net: bridge: mst: fix suspicious rcu usage in br_mst_set_state
HIGH 7.1
At a glance
- Source
- NVD
- EPSS
- EPSS 0.42 % · percentile 36 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
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.
Weaknesses (CWE)
- CWE-416 — Use After Free
References
- https://git.kernel.org/stable/c/caaa2129784a04dcade0ea92c12e6ff90bbd23d8
- https://git.kernel.org/stable/c/7caefa2771722e65496d85b62e1dc4442b7d1345
- https://git.kernel.org/stable/c/406bfc04b01ee47e4c626f77ecc7d9f85135b166
- https://git.kernel.org/stable/c/546ceb1dfdac866648ec959cbc71d9525bd73462
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H | Linux |
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2024-38731
- GCVE · GCVE-0-2024-40920
CERT-FR advisories
- CERTFR-2025-AVI-0088 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0002 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0823 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0822 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0799 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0779 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0778 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0613 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.1.93 < 6.1.95cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.6.33 < 6.6.35cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.8.12 < 6.9cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.9.3 < 6.9.6cpe: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:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 8ca9a750fc711911ef616ceb627d07357b04545e < caaa2129784a04dcade0ea92c12e6ff90bbd23d8 ; affected 4488617e5e995a09abe4d81add5fb165674edb59 < 7caefa2771722e65496d85b62e1dc4442b7d1345 ; affected e43dd2b1ec746e105b7db5f9ad6ef14685a615a4 < 406bfc04b01ee47e4c626f77ecc7d9f85135b166 ; affected 3a7c1661ae1383364cd6092d851f5e5da64d476b < 546ceb1dfdac866648ec959cbc71d9525bd73462 ; affected a2b01e65d9ba8af2bb086d3b7288ca53a07249ac ; affected 6.8.12 < 6.9 |
| Linux · Linux | affected 6.1.93 < 6.1.95 ; affected 6.6.33 < 6.6.35 ; affected 6.9.3 < 6.9.6 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |