Answer in brief
CVE-2024-56709 records a Unknown severity vulnerability in io_uring: check if iowq is killed before queuing. 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 | >=773af69121ecc6c53d192661af8d53bb3db028ae <534d59ab38010aada88390db65985e65d0de7d9e || >=773af69121ecc6c53d192661af8d53bb3db028ae <2ca94c8de36091067b9ce7527ae8db3812d38781 || >=773af69121ecc6c53d192661af8d53bb3db028ae <4f95a2186b7f2af09331e1e8069bcaf34fe019cf || >=773af69121ecc6c53d192661af8d53bb3db028ae <dbd2ca9367eb19bc5e269b8c58b0b1514ada9156 | 534d59ab38010aada88390db65985e65d0de7d9e, 2ca94c8de36091067b9ce7527ae8db3812d38781, 4f95a2186b7f2af09331e1e8069bcaf34fe019cf, dbd2ca9367eb19bc5e269b8c58b0b1514ada9156 |
| Linux/Linuxgeneric | 5.14 | Not reported |
Published upstream
Dec 29, 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: io_uring: check if iowq is killed before queuing task work can be executed after the task has gone through io_uring termination, whether it's the final task_work run or the fallback path. In this case, task work will find ->io_wq being already killed and null'ed, which is a problem if it then tries to forward the request to io_queue_iowq(). Make io_queue_iowq() fail requests in this case. Note that it also checks PF_KTHREAD, because the user can first close a DEFER_TASKRUN ring and shortly after kill the task, in which case ->iowq check would race.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2024-56709 records a Unknown severity vulnerability in io_uring: check if iowq is killed before queuing. 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 | >=773af69121ecc6c53d192661af8d53bb3db028ae <534d59ab38010aada88390db65985e65d0de7d9e || >=773af69121ecc6c53d192661af8d53bb3db028ae <2ca94c8de36091067b9ce7527ae8db3812d38781 || >=773af69121ecc6c53d192661af8d53bb3db028ae <4f95a2186b7f2af09331e1e8069bcaf34fe019cf || >=773af69121ecc6c53d192661af8d53bb3db028ae <dbd2ca9367eb19bc5e269b8c58b0b1514ada9156 | 534d59ab38010aada88390db65985e65d0de7d9e, 2ca94c8de36091067b9ce7527ae8db3812d38781, 4f95a2186b7f2af09331e1e8069bcaf34fe019cf, dbd2ca9367eb19bc5e269b8c58b0b1514ada9156 |
| Linux/Linuxgeneric | 5.14 | Not reported |
Published upstream
Dec 29, 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: io_uring: check if iowq is killed before queuing task work can be executed after the task has gone through io_uring termination, whether it's the final task_work run or the fallback path. In this case, task work will find ->io_wq being already killed and null'ed, which is a problem if it then tries to forward the request to io_queue_iowq(). Make io_queue_iowq() fail requests in this case. Note that it also checks PF_KTHREAD, because the user can first close a DEFER_TASKRUN ring and shortly after kill the task, in which case ->iowq check would race.
Quoted source text, attributed separately from HOL analysis.