Acknowledged
Created: Jun 18, 2025
Updated: Sep 4, 2026
Resolved Date: Jun 19, 2025
Found In Version: 10.25.33.1
Severity: Standard
Applicable for: Wind River Linux LTS 25
Component/s: Kernel
In the Linux kernel, the following vulnerability has been resolved:EOL][EOL]arm64: set UXN on swapper page tables[EOL][EOL][ This issue was fixed upstream by accident in c3cee924bd85 ("arm64:[EOL] head: cover entire kernel image in initial ID map") as part of a[EOL] large refactoring of the arm64 boot flow. This simple fix is therefore[EOL] preferred for -stable backporting ][EOL][EOL]On a system that implements FEAT_EPAN, read/write access to the idmap[EOL]is denied because UXN is not set on the swapper PTEs. As a result,[EOL]idmap_kpti_install_ng_mappings panics the kernel when accessing[EOL]__idmap_kpti_flag. Fix it by setting UXN on these PTEs.
CREATE(Triage):(User=lchen-cn) [CVE-2022-50230 (https://nvd.nist.gov/vuln/detail/CVE-2022-50230)
