CVE-2026-98112

Summary

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: fix listener task lifetime on netdev events

The listener thread exits when its listening socket is shutdown. The netdevice notifier shuts down the socket before calling kthread_stop(), so the task_struct can be freed before kthread_stop() gets its reference.

Create the listener in a stopped state and hold an extra task_struct reference until kthread_stop_put() completes. Also stop and release listeners before freeing their interface records during TCP teardown.

Affected Software

Weaknesses

References

• https://git.kernel.org/stable/c/40581f10c1e56238b157af5f260b8f9518a0cbc1
• https://git.kernel.org/stable/c/a506290f59e1c6ce9ac0a13158640bb8fee93471

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