Answer in brief
CVE-2026-98927 records a High severity (CVSS 7.0) vulnerability in KVM: arm64: nv: Fix life cycle of the nested_mmus array. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). 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 7.0. 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). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=4f128f8e1aaac189f83d0f828bcdb2986d8d2e51 <ea242bdc29e8a8ff0e2447a64b3841114779f3af || >=4f128f8e1aaac189f83d0f828bcdb2986d8d2e51 <81e3f065a6485626f816d791dfd5e00ddd12eff5 || >=4f128f8e1aaac189f83d0f828bcdb2986d8d2e51 <512c93f4461b9a3735987f48423d438a9cd49e6a || >=4f128f8e1aaac189f83d0f828bcdb2986d8d2e51 <33346f8960c7bb6a3b4e273b5cfe25c5a8be349f | ea242bdc29e8a8ff0e2447a64b3841114779f3af, 81e3f065a6485626f816d791dfd5e00ddd12eff5, 512c93f4461b9a3735987f48423d438a9cd49e6a, 33346f8960c7bb6a3b4e273b5cfe25c5a8be349f |
| Linux/Linuxgeneric | 6.11 | Not reported |
Published upstream
Oct 23, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 23, 2026
In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Fix life cycle of the nested_mmus array The nested_mmus array holds the shadow page tables that are used when a guest is running a nested context. These structures are allocated on VCPU_INIT for whole guest, which implies that they may have to be relocated as the array grows. Should a VCPU_INIT occur whilst a vcpu is actively running an L2 and that the allocation requires relocation, that vcpu will still be running with a pointer to the previous structure, which will have been freed. Fix this by turning the array of structures to an array of pointers, which is now allocated at VM creation, sized to the absolute maximum that KVM can handle. In turn, each VCPU_INIT contributes S2_MMU_PER_VCPU to the pool. No reallocation is ever performed, and the life cycle of each object is much clearer: - the nested_mmus array is allocated in kvm_init_nested(), and freed in kvm_arch_destroy_vm() - s2_mmu structures are allocated in kvm_vcpu_init_nested(), and freed on kvm_arch_flush_shadow_all() Finally, the freeing of vcpu->arch.vncr_array is made consistent rather than being done on some failure paths, but not others.
Quoted source text, attributed separately from HOL analysis.