AZL-68799
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-68799.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/AZL-68799
- Upstream
- Published
- 2025-10-24T13:15:47Z
- Modified
- 2026-04-01T05:21:28.910181Z
- Summary
- CVE-2025-40024 affecting package kernel for versions less than 6.6.112.1-2
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
vhost: Take a reference on the task in struct vhost_task.
vhosttaskcreate() creates a task and keeps a reference to its taskstruct. That task may exit early via a signal and its taskstruct will be released. A pending vhosttaskwake() will then attempt to wake the task and access a task_struct which is no longer there.
Acquire a reference on the taskstruct while creating the thread and release the reference while the struct vhosttask itself is removed. If the task exits early due to a signal, then the vhosttaskwake() will still access a valid task_struct. The wake is safe and will be skipped in this case.
- References