CVE-2026-80873

CVE CVE-2026-80873EUVD EUVD-2026-71503Published 2026-09-04T16:48:40.000Z

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Write ESR_EL2 for injected nested SError exceptions kvm_inject_el2_exception() writes ESR_EL2 for synchronous exceptions but not for SError. enter_exception64() does not write ESR_ELx for any exception type, so the constructed syndrome is dropped. A guest L2 hypervisor taking a nested SError observes stale ESR_EL2. This affects both kvm_inject_nested_serror() and the EASE path in kvm_inject_nested_sea(). Write ESR_EL2 for except_type_serror, matching except_type_sync.

Source: EUVD (ENISA), in the words of the advisory.

Products the advisory names

These come from the advisory itself, not from any check we performed.

Linux — Linux 77ee70a073575977b403e9add25f185d614217d8 <e2cb1f4578625e71f461d5c1ce70984193389cbb; patch: 6.18.40; patch: 0; 77ee70a073575977b403e9add25f185d614217d8 <09f35145f3a4aacea4d9b914ad895bf5af8fc4ae; patch: 7.1.5; 6.17; patch: 7.2; 77ee70a073575977b403e9add25f185d614217d8 <29227821e2320ff6a174c91742b4ce221fe8d563

The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.

Carried in the product catalogue

An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.

Linux — Linux

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