CVE-2025-40024 - vhost: Take a reference on the task in struct vhost_task.

CVE-2025-40024 - vhost: Take a reference on the task in struct vhost_task.

https://cvefeed.io/rssfeed/latest.atom / Fri, 10/24/2025 - 17:45
CVE ID : CVE-2025-40024
Published : Oct. 24, 2025, 1:15 p.m. | 2 hours, 15 minutes ago
Description : In the Linux kernel, the following vulnerability has been resolved: vhost: Take a reference on the task in struct vhost_task. vhost_task_create() creates a task and keeps a reference to its task_struct. That task may exit early via a signal and its task_struct will be released. A pending vhost_task_wake() will then attempt to wake the task and access a task_struct which is no longer there. Acquire a reference on the task_struct while creating the thread and release the reference while the struct vhost_task itself is removed. If the task exits early due to a signal, then the vhost_task_wake() will still access a valid task_struct. The wake is safe and will be skipped in this case.
Severity: 0.0 | NA
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