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Vulnerability record · CVE-2026-98112 · published 25 September 2026

CVE-2026-98112: Linux kernel race condition vulnerability

Linux · Linux Kernel

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.

7.8 CVSS 3.1 High EPSS 0.09% · top 99.5% CWE-362 · Race conditionCWE-416 · Use after free
7.8CVSS 3.1 base score
0.09%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
28 Oct 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Source: NIST National Vulnerability Database (record CVE-2026-98112), CISA KEV, FIRST EPSS (scores of 2026-11-11). This page is refreshed as NVD updates the record.