CVE-2026-98112

ksmbd: fix listener task lifetime on netdev events

HIGH
7.8
CVSS Score
Published: September 25, 2026 at 10:35 AM UTC
Updated: October 28, 2026 at 06:49 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.1%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.19 ≤ v < 7.2.73316a8fc840d82fad5efcf76ad0ea3f76fdca2096.197.3
Vendor states this is fixed in 40581f10c1e56238b157af5f260b8f9518a0cbc1 (fixed)
Vendor states this is fixed in a506290f59e1c6ce9ac0a13158640bb8fee93471 (fixed)
Vendor states this is fixed in 6.19 (unaffected)
Vendor states this is fixed in 7.2.7 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

7.8HIGHLinux
Vector?

Quick Info

StatusANALYZED
CWE
CWE-362CWE-416

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