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Vulnerability · Published Jun 18, 2025 · Assigned by Linux

CVE-2022-50232arm64: set UXN on swapper page tables

Medium 5.5

In plain English

A medium-severity security flaw in Linux from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 10% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)0.2%top 90.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

In the Linux kernel, the following vulnerability has been resolved: arm64: set UXN on swapper page tables [ This issue was fixed upstream by accident in c3cee924bd85 ("arm64: head: cover entire kernel image in initial ID map") as part of a large refactoring of the arm64 boot flow. This simple fix is therefore preferred for -stable backporting ] On a system that implements FEAT_EPAN, read/write access to the idmap is denied because UXN is not set on the swapper PTEs. As a result, idmap_kpti_install_ng_mappings panics the kernel when accessing __idmap_kpti_flag. Fix it by setting UXN on these PTEs.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.16.7-1DEBIAN-CVE-2022-50232
Debian:13linux5.16.7-1DEBIAN-CVE-2022-50232
Debian:14linux5.16.7-1DEBIAN-CVE-2022-50232
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2022-50232
Ubuntu:25.10linuxno fix listedUBUNTU-CVE-2022-50232
Ubuntu:26.04:LTSlinuxno fix listedUBUNTU-CVE-2022-50232
Ubuntu:26.10linuxno fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2022-50232
Ubuntu:25.10linux-awsno fix listedUBUNTU-CVE-2022-50232
Ubuntu:26.04:LTSlinux-awsno fix listedUBUNTU-CVE-2022-50232
Ubuntu:26.10linux-awsno fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-aws-7.0no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2022-50232
Ubuntu:25.10linux-azureno fix listedUBUNTU-CVE-2022-50232
Ubuntu:26.04:LTSlinux-azureno fix listedUBUNTU-CVE-2022-50232
Ubuntu:26.10linux-azureno fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-azure-7.0no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2022-50232
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2022-50232
Ubuntu:26.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2022-50232
Ubuntu:26.10linux-azure-fdeno fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-azure-fde-7.0no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2022-50232
Ubuntu:25.10linux-gcpno fix listedUBUNTU-CVE-2022-50232
Ubuntu:26.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2022-50232
Ubuntu:26.10linux-gcpno fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-gcp-7.0no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2022-50232
Ubuntu:26.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-hwe-7.0no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2022-50232
Ubuntu:26.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2022-50232
Ubuntu:26.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-nvidia-7.0no fix listedUBUNTU-CVE-2022-50232
Ubuntu:26.04:LTSlinux-nvidia-bosno fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2022-50232
Ubuntu:26.04:LTSlinux-oem-7.0no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2022-50232
Ubuntu:25.10linux-oracleno fix listedUBUNTU-CVE-2022-50232
Ubuntu:26.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2022-50232
Ubuntu:26.10linux-oracleno fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-oracle-7.0no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2022-50232
Ubuntu:25.10linux-raspino fix listedUBUNTU-CVE-2022-50232
Ubuntu:26.04:LTSlinux-raspino fix listedUBUNTU-CVE-2022-50232
Ubuntu:26.10linux-raspino fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-50232
Ubuntu:25.10linux-realtimeno fix listedUBUNTU-CVE-2022-50232
Ubuntu:26.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-50232
Ubuntu:26.10linux-realtimeno fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-50232
Ubuntu:25.10linux-riscvno fix listedUBUNTU-CVE-2022-50232
Ubuntu:26.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-50232
Ubuntu:26.10linux-riscvno fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-riscv-7.0no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2022-50232
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2022-50232
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2022-50232

Affected products (as reported)

VendorProductVersions
Linux Linux 18107f8a2df6bf1c6cac8d0713f757f866d5af51 – before 775871d4be0d75e219cca937af843a4a1b60489a18107f8a2df6bf1c6cac8d0713f757f866d5af51 – before c3cee924bd855184d15bc4aa6088dcf8e2c1394c
Linux Linux 5.13

References