KVM: arm64: vgic: Take a refcount on IRQs referenced by last_lr_irq
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.
CVE-2026-98712
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-98712
Linux
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Linux
Source reference: /containers/cna/affected/1/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "6da5e537f5afe091658e846da1949d7e557d2ade",
"lessThan": "8b25393d16a5ca8df907bd7ee1ff2e9d85678b3c",
"versionType": "git"
},
{
"status": "affected",
"version": "6da5e537f5afe091658e846da1949d7e557d2ade",
"lessThan": "19bc5d79ece613f242b5ec03921a3b465321bfed",
"versionType": "git"
},
{
"status": "affected",
"version": "cd28ca4c27ed5929f61bbed8a967c20519facb88",
"versionType": "git"
},
{
"status": "affected",
"version": "6.19.9",
"lessThan": "6.20",
"versionType": "semver"
}
],
"programFiles": [
"arch/arm64/kvm/vgic/vgic.c"
],
"defaultStatus": "unaffected"
},
{
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"product": "Linux",
"versions": [
{
"status": "affected",
"version": "7.0"
},
{
"status": "unaffected",
"version": "0",
"lessThan": "7.0",
"versionType": "semver"
},
{
"status": "unaffected",
"version": "7.2.10",
"versionType": "semver",
"lessThanOrEqual": "7.2.*"
},
{
"status": "unaffected",
"version": "7.3",
"versionType": "original_commit_for_fix",
"lessThanOrEqual": "*"
}
],
"programFiles": [
"arch/arm64/kvm/vgic/vgic.c"
],
"defaultStatus": "affected"
}
]- Related CVEs
- CVE-2026-98712
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #38695 · Revision 1
- Added to Heist Feed
- Publisher date