Answer in brief
CVE-2024-56709 records a High severity (CVSS 7.8) 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.
CVSS is 7.8. 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.