CVE-2026-98147: printk: Don't WARN on kthread_run failure.
Published Sep 25, 2026
·Updated
In the Linux kernel, the following vulnerability has been resolved:
printk: Don't WARN on kthreadrun failure.
Since kthreadcreateonnode() returns -EINTR upon SIGKILL, we should not use WARNON() in order to catch kthreadrun() failure.
Affected Software
1 affected component
Linux Linux kernel
Event History
Sep 25, 2026
CVE Published
via MITRE·10:36 AM
Data Sourced
via MITRE·10:36 AM
Description
Frequently Asked Questions
1
What condition causes the warning that this change removes?
The warning can occur when kthread_run() fails because __kthread_create_on_node() returns -EINTR after receiving SIGKILL.
2
Does this change indicate that SIGKILL-related kthread creation failures are prevented?
No. The described change avoids using WARN_ON() for kthread_run() failures in this case; it does not state that the -EINTR failure itself is eliminated.