KVM: arm64: nv: Drop bogus WARN for write to ZCR_EL2 (CVE-2026-72280) | HOL Guard CVE

High · CVSS 7.1CVE-2026-72280

KVM: arm64: nv: Drop bogus WARN for write to ZCR_EL2

Answer in brief

CVE-2026-72280 records a High severity (CVSS 7.1) vulnerability in KVM: arm64: nv: Drop bogus WARN for write to ZCR_EL2. 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 Aug 15, 2026Updated Aug 17, 2026Source checked Sep 29, 2026First seen by HOL Aug 15, 2026Material review Aug 17, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 7.1
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

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.

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	>=0cfc85b8f5cf3b77463d61542191c75ba0cc3a5f <6561597dba97e3e8479a9919bda172cf43eb902c \|\| >=0cfc85b8f5cf3b77463d61542191c75ba0cc3a5f <5000bcae71c869cba6674c326fec2d8ad659ae3a \|\| >=0cfc85b8f5cf3b77463d61542191c75ba0cc3a5f <7deadbc5dab5b8e2316364603bc6281129c8461c \|\| >=0cfc85b8f5cf3b77463d61542191c75ba0cc3a5f <9f1667098c6ae7ec81a9a56859cfdacb822aa0d0	6561597dba97e3e8479a9919bda172cf43eb902c, 5000bcae71c869cba6674c326fec2d8ad659ae3a, 7deadbc5dab5b8e2316364603bc6281129c8461c, 9f1667098c6ae7ec81a9a56859cfdacb822aa0d0
Linux/Linuxgeneric	6.11	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
Review the reported fix. Update Linux/Linux to 6561597dba97e3e8479a9919bda172cf43eb902c if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 17, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 15, 2026

Sources and claim methodology

Upstream source description

In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: nv: Drop bogus WARN for write to ZCR_EL2 It is entirely possible for a guest to write to the ZCR_EL2 sysreg alias while in a nested context, as it is expected if FEAT_NV2 is advertised to the L1 hypervisor. Get rid of the bogus WARN which, since the hyp vectors were installed at this point, has the effect of a hyp_panic...

Quoted source text, attributed separately from HOL analysis.