Answer in brief
CVE-2024-27394 records a Unknown severity vulnerability in tcp: Fix Use-After-Free in tcp_ao_connect_init. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), linux/linux_kernel (generic), linux/linux_kernel (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), linux/linux_kernel (generic), linux/linux_kernel (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=7c2ffaf21bd67f73d21560995ce17eaf5fc1d37f <ca4fb6c6764b3f75b4f5aa81db1536291897ff7f || >=7c2ffaf21bd67f73d21560995ce17eaf5fc1d37f <80e679b352c3ce5158f3f778cfb77eb767e586fb | ca4fb6c6764b3f75b4f5aa81db1536291897ff7f, 80e679b352c3ce5158f3f778cfb77eb767e586fb |
| Linux/Linuxgeneric | 6.7 | Not reported |
| linux/linux_kernelgeneric | 6.7 | Not reported |
| linux/linux_kernelgeneric | >=7c2ffaf21bd6 <ca4fb6c6764b || >=7c2ffaf21bd6 <80e679b352c3 | ca4fb6c6764b, 80e679b352c3 |
Published upstream
May 9, 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: tcp: Fix Use-After-Free in tcp_ao_connect_init Since call_rcu, which is called in the hlist_for_each_entry_rcu traversal of tcp_ao_connect_init, is not part of the RCU read critical section, it is possible that the RCU grace period will pass during the traversal and the key will be free. To prevent this, it should be changed to hlist_for_each_entry_safe.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2024-27394 records a Unknown severity vulnerability in tcp: Fix Use-After-Free in tcp_ao_connect_init. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), linux/linux_kernel (generic), linux/linux_kernel (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), linux/linux_kernel (generic), linux/linux_kernel (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=7c2ffaf21bd67f73d21560995ce17eaf5fc1d37f <ca4fb6c6764b3f75b4f5aa81db1536291897ff7f || >=7c2ffaf21bd67f73d21560995ce17eaf5fc1d37f <80e679b352c3ce5158f3f778cfb77eb767e586fb | ca4fb6c6764b3f75b4f5aa81db1536291897ff7f, 80e679b352c3ce5158f3f778cfb77eb767e586fb |
| Linux/Linuxgeneric | 6.7 | Not reported |
| linux/linux_kernelgeneric | 6.7 | Not reported |
| linux/linux_kernelgeneric | >=7c2ffaf21bd6 <ca4fb6c6764b || >=7c2ffaf21bd6 <80e679b352c3 | ca4fb6c6764b, 80e679b352c3 |
Published upstream
May 9, 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: tcp: Fix Use-After-Free in tcp_ao_connect_init Since call_rcu, which is called in the hlist_for_each_entry_rcu traversal of tcp_ao_connect_init, is not part of the RCU read critical section, it is possible that the RCU grace period will pass during the traversal and the key will be free. To prevent this, it should be changed to hlist_for_each_entry_safe.
Quoted source text, attributed separately from HOL analysis.