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.

CVSS

No CVSS.

References

Link	Resource
https://git.kernel.org/stable/c/78b95c571d021391153a5ac7981e9e4d5cc856a3
https://git.kernel.org/stable/c/c6d9c8ac6521d3049ec90ac58bebd23ed03ac496

Configurations

No configuration.

History

No history.

Information

Published : 2026-09-11 20:20

Updated : 2026-09-11 20:20

NVD link : CVE-2026-89727

Mitre link : CVE-2026-89727

CVE.ORG link : CVE-2026-89727

JSON object : View

Products Affected

No product.

CWE

No CWE.

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