What is CVE-2026-89727?

CVE-2026-89727 is a unscored severity Linux kernel vulnerability, affecting Linux kernel versions from 6.19 onward and patched in 7.2.4 and 7.3-rc1. CVE-2026-89727 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-89727?

CVE-2026-89727 has a CVSS score of pending NVD analysis out of 10, rated awaiting scoring severity.

Is there a patch available for CVE-2026-89727?

Yes, CVE-2026-89727 has been patched. Fixed versions include 7.2.4 and 7.3-rc1. If you are running Linux kernel 6.19 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-89727 actively exploited?

CVE-2026-89727 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-89727

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: GICv2: Don't WARN on out-of-range GICV_DIR INTID vgic_v2_deactivate() passes the INTID a guest wrote to GICV_DIR straight to vgic_get_vcpu_irq(), and treats a failed lookup as a "can't happen" condition with WARN_ON_ONCE(). The guest can make it happen at will, though: for any INTID outside of the implemented SGI, PPI and SPI ranges the lookup returns NULL, since GICv2 has no LPIs. A guest running with EOImode==1 writing such an INTID to GICV_DIR triggers the WARN, and panics hosts running with panic_on_warn. Drop the WARN and ignore failed lookups.

Package Linux Kernel

Published 2026-09-11

Last modified 2026-09-11

Patch available

Yes

Affected versions

Linux kernel versions 6.19 and later are affected. Fixed in 7.2.4, 7.3-rc1 and their respective stable series.

Affected from

≥ 6.19

Fixed in

✓ 7.2.4 7.2.x ✓ 7.3-rc1

References

2 total

Frequently asked questions

What is CVE-2026-89727?

CVE-2026-89727 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.19 onward and has been patched in 7.2.4 and 7.3-rc1. CVE-2026-89727 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
Is there a patch available for CVE-2026-89727?

Yes. CVE-2026-89727 has been patched. Fixed versions include 7.2.4 and 7.3-rc1. If you are running Linux kernel 6.19 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-89727 actively exploited?

No. CVE-2026-89727 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.