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CVE-2026-98164 Details

Description

In the Linux kernel, the following vulnerability has been resolved: KVM: x86/mmu: Check write tracking in all address spaces kvm_gfn_is_write_tracked() checks only the supplied memslot, but page tracking is per-address-space and shadow pages are shared across all address spaces. With SMM, a GFN can therefore be write-tracked in one address space and appear untracked through the other. Check the supplied slot first, then the slot for the other address space. This ensures all callers honor write tracking regardless of the active address space. In particular, it prevents mmu_try_to_unsync_pages() from marking an upper-level shadow page unsync and eventually triggering the BUG in pte_list_remove(). [invert direction of the conditional. - Paolo]

Metrics

CVSS 3.x Severity and Vector Strings:

No CVSS 3.x data is available for this CVE.

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://git.kernel.org/stable/c/09aa68552d2542cc6c23edd1568ac265dc5d886f	kernel.org
https://git.kernel.org/stable/c/0f38453cdb2e17566ccb7c0f3dabd5bd21caca26	kernel.org
https://git.kernel.org/stable/c/429b6f43b4d8c98988fdca99e02dc156134e3d77	kernel.org
https://git.kernel.org/stable/c/c0a9bd5fca0b5f2dea32b0fc31350e71e8648112	kernel.org
https://git.kernel.org/stable/c/d8636c8f9f95d0fd1e2f6f1cad0d5757aa6f212a	kernel.org
https://git.kernel.org/stable/c/ec8fcaf354c1cbb36755d48e9f5a00c9591349e5	kernel.org

see all 6 references

Weakness Enumeration

No weakness enumeration is available for this CVE.

Affected Products

No affected product data is available for this CVE.

Change History

1 change record found show changes