An incorrect setting of UXN bits within mmu_flags_to_s1_pte_attr lead to privileged executable pages being mapped as executable from an unprivileged context. This can be leveraged by an attacker to bypass executability restrictions of kernel-mode pages from user-mode. An incorrect setting of PXN bits within mmu_flags_to_s1_pte_attr lead to unprivileged executable pages being mapped as executable from a privileged context. This can be leveraged by an attacker to bypass executability restrictions of user-mode pages from kernel-mode. Typically this allows a potential attacker to circumvent a mitigation, making exploitation of potential kernel-mode vulnerabilities easier. We recommend updating kernel beyond commit 7d731b4e9599088ac3073956933559da7bca6a00 and rebuilding.
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Mon, 14 Jul 2025 13:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
epss
|
epss
|
Projects
Sign in to view the affected projects.
Status: PUBLISHED
Assigner: Google
Published:
Updated: 2024-08-03T18:44:14.082Z
Reserved: 2021-01-05T00:00:00
Link: CVE-2021-22566
Updated: 2024-08-03T18:44:14.082Z
Status : Modified
Published: 2022-01-18T14:15:07.920
Modified: 2024-11-21T05:50:20.203
Link: CVE-2021-22566
No data.
OpenCVE Enrichment
No data.