LoongArch: KVM: Free init resources if kvm_init() fails (CVE-2026-89909) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-89909

LoongArch: KVM: Free init resources if kvm_init() fails

Answer in brief

CVE-2026-89909 records a Unknown severity vulnerability in LoongArch: KVM: Free init resources if kvm_init() fails. 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.

Published Sep 16, 2026Updated Sep 16, 2026Source checked Sep 16, 2026First seen by HOL Sep 16, 2026Material review Sep 16, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. 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.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Linux/Linuxgeneric	>=2bd6ac68726131da32ace9717aa63ff68cf6605c <6bbbd7b719233645a5c120557a9ca1422e6b7a48 \|\| >=2bd6ac68726131da32ace9717aa63ff68cf6605c <6b78786ee7260d9818cf1d7a245b7a655ef83076 \|\| >=2bd6ac68726131da32ace9717aa63ff68cf6605c <3bf6f5e2e1007d38a5f35bd37e94ab645a0c40bc \|\| >=2bd6ac68726131da32ace9717aa63ff68cf6605c <f7a1064cce3b100b54780c68529176232d8eb01e	6bbbd7b719233645a5c120557a9ca1422e6b7a48, 6b78786ee7260d9818cf1d7a245b7a655ef83076, 3bf6f5e2e1007d38a5f35bd37e94ab645a0c40bc, f7a1064cce3b100b54780c68529176232d8eb01e
Linux/Linuxgeneric	6.7	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 6bbbd7b719233645a5c120557a9ca1422e6b7a48 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 16, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: LoongArch: KVM: Free init resources if kvm_init() fails kvm_loongarch_init() calls kvm_loongarch_env_init() to allocate the per-CPU kvm_context (vmcs) and kvm_loongarch_ops and to register the perf callbacks, and then calls kvm_init(). If kvm_init() fails its result is returned directly, but since module_init() does not run the module_exit() stuff on failure, so kvm_loongarch_env_exit() is never called and those resources are leaked. So call kvm_loongarch_env_exit() when kvm_init() fails, matching the teardown-on-failure pattern used by riscv_kvm_init().

Quoted source text, attributed separately from HOL analysis.