Answer in brief
CVE-2024-40920 records a Unknown severity vulnerability in net: bridge: mst: fix suspicious rcu usage in br_mst_set_state. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=6.1.93 <6.1.95 || >=6.6.33 <6.6.35 || >=6.9.3 <6.9.6 | 6.1.95, 6.6.35, 6.9.6 |
| Linux/Linuxgeneric | >=8ca9a750fc711911ef616ceb627d07357b04545e <caaa2129784a04dcade0ea92c12e6ff90bbd23d8 || >=4488617e5e995a09abe4d81add5fb165674edb59 <7caefa2771722e65496d85b62e1dc4442b7d1345 || >=e43dd2b1ec746e105b7db5f9ad6ef14685a615a4 <406bfc04b01ee47e4c626f77ecc7d9f85135b166 || >=3a7c1661ae1383364cd6092d851f5e5da64d476b <546ceb1dfdac866648ec959cbc71d9525bd73462 || a2b01e65d9ba8af2bb086d3b7288ca53a07249ac || >=6.8.12 <6.9 | caaa2129784a04dcade0ea92c12e6ff90bbd23d8, 7caefa2771722e65496d85b62e1dc4442b7d1345, 406bfc04b01ee47e4c626f77ecc7d9f85135b166, 546ceb1dfdac866648ec959cbc71d9525bd73462, 6.9 |
Published upstream
Jul 12, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
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.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2024-40920 records a Unknown severity vulnerability in net: bridge: mst: fix suspicious rcu usage in br_mst_set_state. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=6.1.93 <6.1.95 || >=6.6.33 <6.6.35 || >=6.9.3 <6.9.6 | 6.1.95, 6.6.35, 6.9.6 |
| Linux/Linuxgeneric | >=8ca9a750fc711911ef616ceb627d07357b04545e <caaa2129784a04dcade0ea92c12e6ff90bbd23d8 || >=4488617e5e995a09abe4d81add5fb165674edb59 <7caefa2771722e65496d85b62e1dc4442b7d1345 || >=e43dd2b1ec746e105b7db5f9ad6ef14685a615a4 <406bfc04b01ee47e4c626f77ecc7d9f85135b166 || >=3a7c1661ae1383364cd6092d851f5e5da64d476b <546ceb1dfdac866648ec959cbc71d9525bd73462 || a2b01e65d9ba8af2bb086d3b7288ca53a07249ac || >=6.8.12 <6.9 | caaa2129784a04dcade0ea92c12e6ff90bbd23d8, 7caefa2771722e65496d85b62e1dc4442b7d1345, 406bfc04b01ee47e4c626f77ecc7d9f85135b166, 546ceb1dfdac866648ec959cbc71d9525bd73462, 6.9 |
Published upstream
Jul 12, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
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.
Quoted source text, attributed separately from HOL analysis.