CVE-2026-62435

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. With the introduction of Grant Table v2 came the requirement to be able to switch between versions. Switching from v1 to v2 reduces the number of valid grant references, ...

CVE-2026-62436

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. With the introduction of Grant Table v2 came the requirement to be able to switch between versions. Switching from v1 to v2 reduces the number of valid grant references, ...

CVE-2026-62428

When grant-copy operations are processed, the respective grant may or may not already be in use by another operation a mapping or another copy. For all copy operations the referenced guest frame is looked up. When another operation is already active for the grant the grant is "pinned", what is...

CVE-2026-62435 grant-table: version change racing with other operations

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. With the introduction of Grant Table v2 came the requirement to be able to switch between versions. Switching from v1 to v2 reduces the number of valid grant references, ...

CVE-2026-62436 grant-table: version change racing with other operations

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. With the introduction of Grant Table v2 came the requirement to be able to switch between versions. Switching from v1 to v2 reduces the number of valid grant references, ...

CVE-2026-62435

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. With the introduction of Grant Table v2 came the requirement to be able to switch between versions. Switching from v1 to v2 reduces the number of valid grant references, ...

CVE-2026-62435

CVE-2026-62435 : A race in grant-table handling during version switching in Xen grant-table v1→v2 can occur when the code temporarily drops and re-acquires the grant-table lock, potentially allowing the switch-related properties to change while unlocked. Affected products involve XenServer/Xen co...

CVE-2026-62436

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. With the introduction of Grant Table v2 came the requirement to be able to switch between versions. Switching from v1 to v2 reduces the number of valid grant references, ...

CVE-2026-62435

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. With the introduction of Grant Table v2 came the requirement to be able to switch between versions. Switching from v1 to v2 reduces the number of valid grant references, ...

CVE-2026-62436

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. With the introduction of Grant Table v2 came the requirement to be able to switch between versions. Switching from v1 to v2 reduces the number of valid grant references, ...

CVE-2026-62436

CVE-2026-62436 describes a race in Xen's Grant Table handling when switching between v2 and v1. The issue arises because, during the transition, the shared grant entry structure changes but the lock is intermittently released. Code that drops and re-acquires the grant table lock may wrongly assum...

EUVD-2026-49780

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. With the introduction of Grant Table v2 came the requirement to be able to switch between versions. Switching from v1 to v2 reduces the number of valid grant references, ...

EUVD-2026-49781

This CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE. With the introduction of Grant Table v2 came the requirement to be able to switch between versions. Switching from v1 to v2 reduces the number of valid grant references, ...

CVE-2026-62428 grant-table: type confusion in grant-copy

When grant-copy operations are processed, the respective grant may or may not already be in use by another operation a mapping or another copy. For all copy operations the referenced guest frame is looked up. When another operation is already active for the grant the grant is "pinned", what is...

CVE-2026-62428

When grant-copy operations are processed, the respective grant may or may not already be in use by another operation a mapping or another copy. For all copy operations the referenced guest frame is looked up. When another operation is already active for the grant the grant is "pinned", what is...

CVE-2026-62428

CVE-2026-62428 describes a type-confusion in grant-copy handling where a grant may be 'pinned' to one operation, causing the permission check and copy operation to reference potentially different guest frames. This could lead to inconsistencies and incorrect permission checks. Documented impact i...

CVE-2026-62428

When grant-copy operations are processed, the respective grant may or may not already be in use by another operation a mapping or another copy. For all copy operations the referenced guest frame is looked up. When another operation is already active for the grant the grant is "pinned", what is...

EUVD-2026-49779

When grant-copy operations are processed, the respective grant may or may not already be in use by another operation a mapping or another copy. For all copy operations the referenced guest frame is looked up. When another operation is already active for the grant the grant is "pinned", what is...

grant-table: version change racing with other operations

ISSUE DESCRIPTION With the introduction of Grant Table v2 came the requirement to be able to switch between versions. Switching from v1 to v2 reduces the number of valid grant references, as a bigger shared entry structure is then needed while the shared table doesn't change size. Switching from ...

grant-table: type confusion in grant-copy

ISSUE DESCRIPTION When grant-copy operations are processed, the respective grant may or may not already be in use by another operation a mapping or another copy. For all copy operations the referenced guest frame is looked up. When another operation is already active for the grant the grant is...