CVE-2026-102702 (GCVE-0-2026-102702)
Vulnerability from cvelistv5
Published
2026-10-13 15:45
Modified
2026-10-20 17:28
Summary
[This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] 1) XSA-437 (CVE-2023-34321) addressed issues with overflows in calculations involved in guests flushing caches through GNTTABOP_cache_flush. Unfortunately the fix there introduced a calculation which may underflow, resulting in a loop which would - at least on 64-bit Arm - take excessively long, and which would likely eventually crash the hypervisor. This is CVE-2026-102699. 2) GNTTABOP_cache_flush may be issued on memory mapped from another domain using the grant table interface. However there was no restriction to disallow the use of invalidate-without-clean against read-only grant mappings, which may corrupt the granted memory. This is CVE-2026-102702.
Impacted products
Show details on NVD website


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              "confidentialityImpact": "NONE",
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              "privilegesRequired": "NONE",
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    "dateReserved": "2026-09-29T16:11:40.973Z",
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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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