Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2024-56709

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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 17.5%
CVSS Severity
CVSS v3 Score 5.5
Products affected by CVE-2024-56709


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