Answer in brief
CVE-2026-89912 records a High severity (CVSS 7.1) vulnerability in KVM: arm64: vgic-its: Don't dereference a NULL collection on ITT save. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=eff484e0298da5a4d18ca82f5454c557fd942af5 <3d4c26b16a04a084fe0bde08ccdd8086570f8bbe || >=eff484e0298da5a4d18ca82f5454c557fd942af5 <36df368861d2664291298feeb37dfef43fcae670 || >=eff484e0298da5a4d18ca82f5454c557fd942af5 <c6c156d931c33b92362383cf76f6d6e1291dcbfe | 3d4c26b16a04a084fe0bde08ccdd8086570f8bbe, 36df368861d2664291298feeb37dfef43fcae670, c6c156d931c33b92362383cf76f6d6e1291dcbfe |
| Linux/Linuxgeneric | 4.12 | Not reported |
| Linux/Linuxgeneric | >=eff484e0298da5a4d18ca82f5454c557fd942af5 <2c3a87ad3d3935c43d465cd2465db9020f9e898f || >=eff484e0298da5a4d18ca82f5454c557fd942af5 <3d4c26b16a04a084fe0bde08ccdd8086570f8bbe || >=eff484e0298da5a4d18ca82f5454c557fd942af5 <36df368861d2664291298feeb37dfef43fcae670 || >=eff484e0298da5a4d18ca82f5454c557fd942af5 <c6c156d931c33b92362383cf76f6d6e1291dcbfe | 2c3a87ad3d3935c43d465cd2465db9020f9e898f, 3d4c26b16a04a084fe0bde08ccdd8086570f8bbe, 36df368861d2664291298feeb37dfef43fcae670, c6c156d931c33b92362383cf76f6d6e1291dcbfe |
| Linux/Linuxgeneric | >=eff484e0298da5a4d18ca82f5454c557fd942af5 <dd0c3e6c03e3bb3fd7c0fa422230020674c5c25e || >=eff484e0298da5a4d18ca82f5454c557fd942af5 <2c3a87ad3d3935c43d465cd2465db9020f9e898f || >=eff484e0298da5a4d18ca82f5454c557fd942af5 <3d4c26b16a04a084fe0bde08ccdd8086570f8bbe || >=eff484e0298da5a4d18ca82f5454c557fd942af5 <36df368861d2664291298feeb37dfef43fcae670 || >=eff484e0298da5a4d18ca82f5454c557fd942af5 <c6c156d931c33b92362383cf76f6d6e1291dcbfe | dd0c3e6c03e3bb3fd7c0fa422230020674c5c25e, 2c3a87ad3d3935c43d465cd2465db9020f9e898f, 3d4c26b16a04a084fe0bde08ccdd8086570f8bbe, 36df368861d2664291298feeb37dfef43fcae670, c6c156d931c33b92362383cf76f6d6e1291dcbfe |
| Linux/Linuxgeneric | >=eff484e0298da5a4d18ca82f5454c557fd942af5 <df829e4fe235b3a0dbf830986d81c040d3d2e940 || >=eff484e0298da5a4d18ca82f5454c557fd942af5 <0fb71211146e39cf67811ccb873d2770a9c129ac || >=eff484e0298da5a4d18ca82f5454c557fd942af5 <566d0f99aec92280ce403f22068eb07241a79e2a || >=eff484e0298da5a4d18ca82f5454c557fd942af5 <dd0c3e6c03e3bb3fd7c0fa422230020674c5c25e || >=eff484e0298da5a4d18ca82f5454c557fd942af5 <2c3a87ad3d3935c43d465cd2465db9020f9e898f || >=eff484e0298da5a4d18ca82f5454c557fd942af5 <3d4c26b16a04a084fe0bde08ccdd8086570f8bbe || >=eff484e0298da5a4d18ca82f5454c557fd942af5 <36df368861d2664291298feeb37dfef43fcae670 || >=eff484e0298da5a4d18ca82f5454c557fd942af5 <c6c156d931c33b92362383cf76f6d6e1291dcbfe | df829e4fe235b3a0dbf830986d81c040d3d2e940, 0fb71211146e39cf67811ccb873d2770a9c129ac, 566d0f99aec92280ce403f22068eb07241a79e2a, dd0c3e6c03e3bb3fd7c0fa422230020674c5c25e, 2c3a87ad3d3935c43d465cd2465db9020f9e898f, 3d4c26b16a04a084fe0bde08ccdd8086570f8bbe, 36df368861d2664291298feeb37dfef43fcae670, c6c156d931c33b92362383cf76f6d6e1291dcbfe |
Published upstream
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 30, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 16, 2026
In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-its: Don't dereference a NULL collection on ITT save MAPC with V=0 drops ite->collection but leaves the ITE on the device's ITT list, and vgic_its_save_ite() dereferences it unconditionally. A guest that issues MAPD, MAPTI and then MAPC(V=0) therefore oopses the host when the VMM issues KVM_DEV_ARM_ITS_SAVE_TABLES to migrate it. That sequence is UNPREDICTABLE per the architecture, but KVM already handles the resulting state in the translate, MOVI and DISCARD paths. Save a zeroed entry, which vgic_its_restore_ite() reads back as invalid. Skipping the ITE instead would leave the ITT slot holding whatever is in guest memory, and restore rejects an entry naming a collection the restored collection table does not have.
Quoted source text, attributed separately from HOL analysis.