VulnerabilityPublished 18 Oct 2026

CVE-2026-98468: Linux kernel · KVM: arm64: Fix spurious warning for benign stage 2 teardown race

Source GCVE Database

Authoritative record:CVE-2026-98468· Low

Not known to be exploited · fixed in f44a92633136b409ebb9b7036fceb7e11de60a20 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 17:16 UTC

Severity

Low

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in f44a92633136b409ebb9b7036fceb7e11de60a20, c23ed110d27ba99cf3a881986514f79aacedf476, 330346dda3bf5f8a3b06723024f7d906326270cf +1

Exploitation evidence

Disclosed: evidence found.
CVE published 18 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

ghsa-5gcw-m9q3-vcxx

What to do

Upgrade Linux kernel to f44a92633136b409ebb9b7036fceb7e11de60a20, c23ed110d27ba99cf3a881986514f79aacedf476, 330346dda3bf5f8a3b06723024f7d906326270cf or 38b70fc453c3112f1a62583b89903ae41116cc27.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ ec14c272408af43d392f65f55e66f3b94fc61921, < f44a92633136b409ebb9b7036fceb7e11de60a20	Fixed in f44a92633136b409ebb9b7036fceb7e11de60a20
LinuxLinux	Affected ≥ ec14c272408af43d392f65f55e66f3b94fc61921, < c23ed110d27ba99cf3a881986514f79aacedf476	Fixed in c23ed110d27ba99cf3a881986514f79aacedf476
LinuxLinux	Affected ≥ ec14c272408af43d392f65f55e66f3b94fc61921, < 330346dda3bf5f8a3b06723024f7d906326270cf	Fixed in 330346dda3bf5f8a3b06723024f7d906326270cf
LinuxLinux	Affected ≥ ec14c272408af43d392f65f55e66f3b94fc61921, < 38b70fc453c3112f1a62583b89903ae41116cc27	Fixed in 38b70fc453c3112f1a62583b89903ae41116cc27
LinuxLinux	Affected =6.11	Fixed in–

AI-suggested

A fix is available that updates the kernel code to suppress the spurious warning. Users should apply the official Linux kernel update that includes this patch to avoid misleading warnings. No other mitigation is required as the race is benign and does not affect system security or stability.

Description

A benign race condition in the Linux kernel's KVM arm64 implementation caused spurious warnings during stage 2 page table teardown. The issue arises when concurrent operations on stage 2 page tables race, triggering a warning that is not indicative of an actual error. The fix updates the code to suppress these false warnings while preserving warnings for other genuine error conditions.

References

Community reviews

Loading reviews…