linux: In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Write ESR_EL2 for injected neste...
CVE-2026-80873 is fixed in 20 products on 1 platform, first by ALAS2023-2026-2071, released August 31, 2026. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool6.18 · amzn 2023 | 1:6.18.41-94.142.amzn2023 | ALAS2023-2026-2071 | Aug 31, 2026 |
| bpftool6.18-debuginfo · amzn 2023 | 1:6.18.41-94.142.amzn2023 | ALAS2023-2026-2071 | Aug 31, 2026 |
| kernel-livepatch-6.18.41-94.142 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-2071 | Aug 31, 2026 |
| kernel6.18 · amzn 2023 | 1:6.18.41-94.142.amzn2023 | ALAS2023-2026-2071 | Aug 31, 2026 |
| kernel6.18-debuginfo · amzn 2023 | 1:6.18.41-94.142.amzn2023 | ALAS2023-2026-2071 | Aug 31, 2026 |
| kernel6.18-debuginfo-common-aarch64 · amzn 2023 | 1:6.18.41-94.142.amzn2023 | ALAS2023-2026-2071 | Aug 31, 2026 |
| kernel6.18-debuginfo-common-x86_64 · amzn 2023 | 1:6.18.41-94.142.amzn2023 | ALAS2023-2026-2071 | Aug 31, 2026 |
| kernel6.18-devel · amzn 2023 | 1:6.18.41-94.142.amzn2023 | ALAS2023-2026-2071 | Aug 31, 2026 |
| kernel6.18-headers · amzn 2023 | 1:6.18.41-94.142.amzn2023 | ALAS2023-2026-2071 | Aug 31, 2026 |
| kernel6.18-modules-extra · amzn 2023 | 1:6.18.41-94.142.amzn2023 | ALAS2023-2026-2071 | Aug 31, 2026 |
| kernel6.18-modules-extra-common · amzn 2023 | 1:6.18.41-94.142.amzn2023 | ALAS2023-2026-2071 | Aug 31, 2026 |
| kernel6.18-tools · amzn 2023 | 1:6.18.41-94.142.amzn2023 | ALAS2023-2026-2071 | Aug 31, 2026 |
| kernel6.18-tools-debuginfo · amzn 2023 | 1:6.18.41-94.142.amzn2023 | ALAS2023-2026-2071 | Aug 31, 2026 |
| kernel6.18-tools-devel · amzn 2023 | 1:6.18.41-94.142.amzn2023 | ALAS2023-2026-2071 | Aug 31, 2026 |
| linux · Debian 14 | 7.1.5-1 | DEBIAN-CVE-2026-80873 | Sep 5, 2026 |
| microvm-kernel6.18 · amzn 2023 | 1:6.18.41-94.142.amzn2023 | ALAS2023-2026-2071 | Aug 31, 2026 |
| perf6.18 · amzn 2023 | 1:6.18.41-94.142.amzn2023 | ALAS2023-2026-2071 | Aug 31, 2026 |
| perf6.18-debuginfo · amzn 2023 | 1:6.18.41-94.142.amzn2023 | ALAS2023-2026-2071 | Aug 31, 2026 |
| python3-perf6.18 · amzn 2023 | 1:6.18.41-94.142.amzn2023 | ALAS2023-2026-2071 | Aug 31, 2026 |
| python3-perf6.18-debuginfo · amzn 2023 | 1:6.18.41-94.142.amzn2023 | ALAS2023-2026-2071 | Aug 31, 2026 |
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