Host crash via premature P2M lock release
Published Sep 11, 2025 · Updated Sep 11, 2025
Race condition in Xen 4.12 and later on Arm allows guest OS users to crash the hypervisor while mapping another domain’s page. The p2m_get_page_from_gfn function releases the P2M lock before obtaining a reference to a foreign page, allowing its type or ownership to change during the operation. An unprivileged guest can trigger the race and crash the entire host; privilege escalation and information disclosure remain unconfirmed.
Summary
What happened
Race condition in Xen 4.12 and later on Arm allows guest OS users to crash the hypervisor while mapping another domain’s page. The p2m_get_page_from_gfn function releases the P2M lock before obtaining a reference to a foreign page, allowing its type or ownership to change during the operation. An unprivileged guest can trigger the race and crash the entire host; privilege escalation and information disclosure remain unconfirmed.
The record
- CVE
- CVE-2025-58145
- Published
- Sep 11, 2025
- Updated
- Sep 11, 2025
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-362, T1499.004
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 11, 2025CVE publishedPublication date reported by the CVE source.
- Sep 11, 2025Record updatedLatest update available in the CVE record.
Exploitability
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What is affected?
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Published CVSS scores
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Attacks
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Public exploit references
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Technologies
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