CVE-2026-89911
Last modified
CVE-2026-89911 is a high-severity vulnerability rated 7.9/10 on the CVSS scale. 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.
Description
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.
Metrics
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 4ffa72ad8f37e73bbb6c0baa88557bcb4fd39929, < 566b1f08d983615f731cc693f2ad59db302c6b57; >= 4ffa72ad8f37e73bbb6c0baa88557bcb4fd39929, < 2de38f0448b45d27eba984fc0d9edb7a138972c2; >= 4ffa72ad8f37e73bbb6c0baa88557bcb4fd39929, < 69a598288195947a1662b53de702eb6976af96b7 |
| Linux | Linux | 6.16 |
References
Timeline
- Published
- Last Modified
- Status
- Received
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