Bug 2433923 (CVE-2025-58150)

Summary: CVE-2025-58150 xen: x86: buffer overrun with shadow paging + tracing
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2434045, 2434046    
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Description OSIDB Bzimport 2026-01-28 16:01:12 UTC 
Shadow mode tracing code uses a set of per-CPU variables to avoid
cumbersome parameter passing.  Some of these variables are written to
with guest controlled data, of guest controllable size.  That size can
be larger than the variable, and bounding of the writes was missing.