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CVE-2026-98712

KVM: arm64: vgic: Take a refcount on IRQs referenced by last_lr_irq

N/A
Published: October 18, 2026 at 03:46 PM UTC
Updated: October 19, 2026 at 10:19 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic: Take a refcount on IRQs referenced by last_lr_irq Referencing the last interrupt inserted in an LR is rather fragile, as this interrupt can vanish if a concurrently unmapped LPI. Solve this by bumping up the refcount on the interrupt when populating last_lr_irq, and drop it at vgic_prune_ap_list() time, when LPIs are being reclaimed.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
90%
6.19.96da5e537f5afe091658e846da1949d7e557d2ade7.0cd28ca4c27ed5929f61bbed8a967c20519facb88
Vendor states this is fixed in 7.2.10 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (2)

Source: cverecord
https://git.kernel.org/stable/c/8b25393d16a5ca8df907bd7ee1ff2e9d85678b3c
Source: cverecord
https://git.kernel.org/stable/c/19bc5d79ece613f242b5ec03921a3b465321bfed

Quick Info

StatusRECEIVED

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