What’s Vulnerable › Vulnerabilities

CVE-2026-98147: printk: Don't WARN on kthread_run failure.

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-25 · updated 2026-10-27
• Weakness: CWE-617

Description

In the Linux kernel, the following vulnerability has been resolved: printk: Don't WARN on kthread_run failure. Since __kthread_create_on_node() returns -EINTR upon SIGKILL, we should not use WARN_ON() in order to catch kthread_run() failure.

Affected products

• Linux kernel: from 6.12 before 6.12.114; from 6.13 before 6.18.57; from 6.19 before 7.2.7; 7.3-rc1, 7.3-rc2 — fixed in 6.12.114, 6.18.57, 7.2.7
• Linux kernel: 6.12 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 6.12.114, 6.18.57, 7.2.7; Linux kernel 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0af43b52fe4b1751b731c067127fdf47cf1b700c
• https://git.kernel.org/stable/c/15ba35d632c38d879d182577b0af487de0f2dec4
• https://git.kernel.org/stable/c/4e676279798148382497d0e38c0bd51115e64be1
• https://git.kernel.org/stable/c/72dd0ec09e7cc98ed58ddeac26575e5d1ab8a93d

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