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Vulnerability · Published Feb 17, 2021 · Assigned by mitre

CVE-2021-26934

High 7.8

In plain English

A high-severity security flaw in the linux package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities).

Severity (CVSS NVD)7.8High
Exploit odds (30 days)0.3%top 71.7% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official description

An issue was discovered in the Linux kernel 4.18 through 5.10.16, as used by Xen. The backend allocation (aka be-alloc) mode of the drm_xen_front drivers was not meant to be a supported configuration, but this wasn't stated accordingly in its support status entry.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linuxno fix listedDEBIAN-CVE-2021-26934
Debian:13linuxno fix listedDEBIAN-CVE-2021-26934
Debian:14linuxno fix listedDEBIAN-CVE-2021-26934
Ubuntu:22.04:LTSlinuxno fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinuxno fix listedUBUNTU-CVE-2021-26934
Ubuntu:25.10linuxno fix listedUBUNTU-CVE-2021-26934
Ubuntu:26.04:LTSlinuxno fix listedUBUNTU-CVE-2021-26934
Ubuntu:26.10linuxno fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-awsno fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-awsno fix listedUBUNTU-CVE-2021-26934
Ubuntu:25.10linux-awsno fix listedUBUNTU-CVE-2021-26934
Ubuntu:26.04:LTSlinux-awsno fix listedUBUNTU-CVE-2021-26934
Ubuntu:26.10linux-awsno fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-aws-6.14no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-aws-6.17no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-aws-6.8no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-aws-7.0no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-azureno fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-azureno fix listedUBUNTU-CVE-2021-26934
Ubuntu:25.10linux-azureno fix listedUBUNTU-CVE-2021-26934
Ubuntu:26.04:LTSlinux-azureno fix listedUBUNTU-CVE-2021-26934
Ubuntu:26.10linux-azureno fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-azure-6.14no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-azure-6.17no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-azure-6.8no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-azure-7.0no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2021-26934
Ubuntu:25.10linux-azure-fdeno fix listedUBUNTU-CVE-2021-26934
Ubuntu:26.04:LTSlinux-azure-fdeno fix listedUBUNTU-CVE-2021-26934
Ubuntu:26.10linux-azure-fdeno fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-azure-fde-6.14no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-azure-fde-6.17no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-azure-fde-6.8no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-azure-fde-7.0no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-azure-nvidia-6.14no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2021-26934
Ubuntu:25.10linux-gcpno fix listedUBUNTU-CVE-2021-26934
Ubuntu:26.04:LTSlinux-gcpno fix listedUBUNTU-CVE-2021-26934
Ubuntu:26.10linux-gcpno fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-gcp-6.14no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-gcp-6.17no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-gcp-6.8no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-gcp-7.0no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2021-26934
Ubuntu:26.04:LTSlinux-gkeno fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-gkeopno fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-hwe-6.14no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-hwe-6.17no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-hwe-6.8no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-hwe-7.0no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2021-26934
Ubuntu:26.04:LTSlinux-ibmno fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-ibm-6.8no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-intel-iotgno fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-kvmno fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-lowlatencyno fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.8no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2021-26934
Ubuntu:26.04:LTSlinux-nvidiano fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-nvidia-6.17no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-nvidia-6.8no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-nvidia-7.0no fix listedUBUNTU-CVE-2021-26934
Ubuntu:26.04:LTSlinux-nvidia-bosno fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-nvidia-lowlatencyno fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-nvidia-tegrano fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-nvidia-tegra-igxno fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-oem-6.14no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-oem-6.17no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2021-26934
Ubuntu:26.04:LTSlinux-oem-7.0no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2021-26934
Ubuntu:25.10linux-oracleno fix listedUBUNTU-CVE-2021-26934
Ubuntu:26.04:LTSlinux-oracleno fix listedUBUNTU-CVE-2021-26934
Ubuntu:26.10linux-oracleno fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-oracle-6.14no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-oracle-6.17no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-oracle-6.8no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-oracle-7.0no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-raspino fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-raspino fix listedUBUNTU-CVE-2021-26934
Ubuntu:25.10linux-raspino fix listedUBUNTU-CVE-2021-26934
Ubuntu:26.04:LTSlinux-raspino fix listedUBUNTU-CVE-2021-26934
Ubuntu:26.10linux-raspino fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2021-26934
Ubuntu:25.10linux-realtimeno fix listedUBUNTU-CVE-2021-26934
Ubuntu:26.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2021-26934
Ubuntu:26.10linux-realtimeno fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2021-26934
Ubuntu:25.10linux-riscvno fix listedUBUNTU-CVE-2021-26934
Ubuntu:26.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2021-26934
Ubuntu:26.10linux-riscvno fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-riscv-6.14no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-riscv-6.17no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-riscv-6.8no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-riscv-7.0no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-vmwareno fix listedUBUNTU-CVE-2021-26934
Ubuntu:24.04:LTSlinux-xilinxno fix listedUBUNTU-CVE-2021-26934
Ubuntu:22.04:LTSlinux-xilinx-zynqmpno fix listedUBUNTU-CVE-2021-26934

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References