# KVM: arm64: vgic-its: Don't dereference a NULL collection on ITT save

CVE record · `CVE-2026-89912`

- **Identifiers:** `CVE-2026-89912`
- **State:** Confirmed
- **Severity:** CVSS 7.1 High
- **Critical:** No
- **CNA:** Linux
- **Technologies:** [Linux kernel](https://agentprime.io/advisories/technology/linux-kernel.md)
- **Published:** 16 Sept 2026
- **Updated:** 30 Oct 2026
- **Reviewed by a person:** No

Published by the CVE Program (CNA: Linux) at 16 Sept 2026, 10:32 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

## Affected products, as the CNA wrote them

- Vendor: Linux. Product: Linux.
  - affected: `eff484e0298da5a4d18ca82f5454c557fd942af5 to before df829e4fe235b3a0dbf830986d81c040d3d2e940` (git)
  - affected: `eff484e0298da5a4d18ca82f5454c557fd942af5 to before 0fb71211146e39cf67811ccb873d2770a9c129ac` (git)
  - affected: `eff484e0298da5a4d18ca82f5454c557fd942af5 to before 566d0f99aec92280ce403f22068eb07241a79e2a` (git)
  - affected: `eff484e0298da5a4d18ca82f5454c557fd942af5 to before dd0c3e6c03e3bb3fd7c0fa422230020674c5c25e` (git)
  - affected: `eff484e0298da5a4d18ca82f5454c557fd942af5 to before 2c3a87ad3d3935c43d465cd2465db9020f9e898f` (git)
  - affected: `eff484e0298da5a4d18ca82f5454c557fd942af5 to before 3d4c26b16a04a084fe0bde08ccdd8086570f8bbe` (git)
  - affected: `eff484e0298da5a4d18ca82f5454c557fd942af5 to before 36df368861d2664291298feeb37dfef43fcae670` (git)
  - affected: `eff484e0298da5a4d18ca82f5454c557fd942af5 to before c6c156d931c33b92362383cf76f6d6e1291dcbfe` (git)
  - Other versions: unaffected
- Vendor: Linux. Product: Linux.
  - affected: `4.12`
  - unaffected: `before 4.12` (semver)
  - unaffected: `5.10.273 to 5.10.*, inclusive` (semver)
  - unaffected: `5.15.224 to 5.15.*, inclusive` (semver)
  - unaffected: `6.1.191 to 6.1.*, inclusive` (semver)
  - unaffected: `6.6.160 to 6.6.*, inclusive` (semver)
  - unaffected: `6.12.113 to 6.12.*, inclusive` (semver)
  - unaffected: `6.18.51 to 6.18.*, inclusive` (semver)
  - unaffected: `7.2.5 to 7.2.*, inclusive` (semver)
  - unaffected: `7.3 to *, inclusive` (original_commit_for_fix)
  - Other versions: affected

## Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

## Severity and exploitation

- 7.1 High, CVSS 3.1: `CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H`, from CNA (Linux)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0021, the 10th percentile, on 15 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

This record came from the full history of the CVE Program, published 16 Sept 2026. New records show when each source confirmed them.

## Sources

- [CVE List: CVE-2026-89912](https://www.cve.org/CVERecord?id=CVE-2026-89912)
- [NVD: CVE-2026-89912](https://nvd.nist.gov/vuln/detail/CVE-2026-89912)

### References from the CNA

- <https://git.kernel.org/stable/c/df829e4fe235b3a0dbf830986d81c040d3d2e940>
- <https://git.kernel.org/stable/c/0fb71211146e39cf67811ccb873d2770a9c129ac>
- <https://git.kernel.org/stable/c/566d0f99aec92280ce403f22068eb07241a79e2a>
- <https://git.kernel.org/stable/c/dd0c3e6c03e3bb3fd7c0fa422230020674c5c25e>
- <https://git.kernel.org/stable/c/2c3a87ad3d3935c43d465cd2465db9020f9e898f>
- <https://git.kernel.org/stable/c/3d4c26b16a04a084fe0bde08ccdd8086570f8bbe>
- <https://git.kernel.org/stable/c/36df368861d2664291298feeb37dfef43fcae670>
- <https://git.kernel.org/stable/c/c6c156d931c33b92362383cf76f6d6e1291dcbfe>

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.

## Check whether this affects you

This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it. Compare the affected versions above with what you run.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), `get_advisory` returns this record and `search_advisories` finds related ones. Setup: <https://agentprime.io/mcp.md>
- As JSON: <https://api.agentprime.io/v1/advisories/CVE-2026-89912>
- Everything that needs attention now: <https://agentprime.io/advisories/critical.md>

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The web page: <https://agentprime.io/advisories/CVE-2026-89912/>. Everything for agents: <https://agentprime.io/llms.txt>.