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CVE Record

CVE-2026-89911: KVM: arm64: Correctly cap TLBI Range to the architural limit

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Correctly cap TLBI Range to the architural limit TLB Invalidation by Range has a fairly powerful way of encoding pretty large ranges in a small number of bits. This range can be based on an arbitrary VA, which means it is pretty easy for a guest to generate an overflow should the hypervisor be naive enough to add the range to the base... Make sure the range is capped to the limit dictated by the address bit that determines the VA range. For an IPA invalidation, this is further corrected down the line to ignore the upper range.

HighCVSS 7.9Not KEV-listedUpdated
Potential ATT&CK relevance

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.9 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:H

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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1CVSS vectors
3Timeline events
0ADP providers
4Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.9CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:H25.3Linux

Vulnerability scoring details

Base CVSS 3.1 score

7.9High
CVSS 3.1 vector shape for CVE-2026-89911Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

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  2. CVE publishedCVE Program

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  3. CVE updatedCVE Program

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Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux4ffa72ad8f37e73bbb6c0baa88557bcb4fd39929, 4ffa72ad8f37e73bbb6c0baa88557bcb4fd39929, 4ffa72ad8f37e73bbb6c0baa88557bcb4fd39929unaffected
LinuxLinux6.16, 0, 6.18.51, 7.2.5, 7.3affected
Weakness

CWE details

No CWE listed

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