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Vulnerability · Published Mar 6, 2025 · Assigned by Linux

CVE-2025-21833iommu/vt-d: Avoid use of NULL after WARN_ON_ONCE

Medium 5.5

In plain English

A medium-severity null pointer dereference 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 12% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.2%top 88.0% 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: iommu/vt-d: Avoid use of NULL after WARN_ON_ONCE There is a WARN_ON_ONCE to catch an unlikely situation when domain_remove_dev_pasid can't find the `pasid`. In case it nevertheless happens we must avoid using a NULL pointer.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:13linux6.12.57-1DEBIAN-CVE-2025-21833
Debian:14linux6.16.3-1DEBIAN-CVE-2025-21833
Ubuntu:24.04:LTSlinux6.8.0-106.106USN-8095-1
Ubuntu:24.04:LTSlinux6.8.0-106.106UBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2025-21833
Ubuntu:24.04:LTSlinux-aws6.8.0-1050.53UBUNTU-CVE-2025-21833
Ubuntu:24.04:LTSlinux-aws6.8.0-1050.53USN-8095-1
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-aws-6.5no fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1050.53~22.04.1USN-8095-4
Ubuntu:22.04:LTSlinux-aws-6.86.8.0-1050.53~22.04.1UBUNTU-CVE-2025-21833
Ubuntu:24.04:LTSlinux-azure6.8.0-1051.57UBUNTU-CVE-2025-21833
Ubuntu:24.04:LTSlinux-azure6.8.0-1051.57USN-8125-1
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2025-21833
Ubuntu:24.04:LTSlinux-azure-6.11no fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-azure-6.5no fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1051.57~22.04.1UBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-azure-6.86.8.0-1051.57~22.04.1USN-8126-1
Ubuntu:24.04:LTSlinux-azure-fde6.8.0-1058.65UBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-azure-fde-6.86.8.0-1058.65~22.04.1UBUNTU-CVE-2025-21833
Ubuntu:24.04:LTSlinux-azure-nvidiano fix listedUBUNTU-CVE-2025-21833
Ubuntu:24.04:LTSlinux-gcp6.8.0-1052.55USN-8095-1
Ubuntu:24.04:LTSlinux-gcp6.8.0-1052.55UBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2025-21833
Ubuntu:24.04:LTSlinux-gcp-6.11no fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-gcp-6.5no fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1052.55~22.04.1UBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-gcp-6.86.8.0-1052.55~22.04.1USN-8095-1
Ubuntu:24.04:LTSlinux-gke6.8.0-1048.53USN-8095-1
Ubuntu:24.04:LTSlinux-gke6.8.0-1048.53UBUNTU-CVE-2025-21833
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1035.38UBUNTU-CVE-2025-21833
Ubuntu:24.04:LTSlinux-gkeop6.8.0-1035.38USN-8095-1
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2025-21833
Ubuntu:24.04:LTSlinux-hwe-6.11no fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-hwe-6.5no fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-106.106~22.04.1USN-8095-1
Ubuntu:22.04:LTSlinux-hwe-6.86.8.0-106.106~22.04.1UBUNTU-CVE-2025-21833
Ubuntu:24.04:LTSlinux-ibm6.8.0-1049.49UBUNTU-CVE-2025-21833
Ubuntu:24.04:LTSlinux-ibm6.8.0-1049.49USN-8095-1
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1049.49~22.04.1UBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-ibm-6.86.8.0-1049.49~22.04.1USN-8095-1
Ubuntu:24.04:LTSlinux-intelno fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2025-21833
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-106.106.1USN-8095-1
Ubuntu:24.04:LTSlinux-lowlatency6.8.0-106.106.1UBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2025-21833
Ubuntu:24.04:LTSlinux-lowlatency-hwe-6.11no fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.5no fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-106.106.1~22.04.1UBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.86.8.0-106.106.1~22.04.1USN-8095-1
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1049.52UBUNTU-CVE-2025-21833
Ubuntu:24.04:LTSlinux-nvidia6.8.0-1049.52USN-8100-1
Ubuntu:24.04:LTSlinux-nvidia-6.11no fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-nvidia-6.5no fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1049.52~22.04.1USN-8100-1
Ubuntu:22.04:LTSlinux-nvidia-6.86.8.0-1049.52~22.04.1UBUNTU-CVE-2025-21833
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1049.52.1USN-8100-1
Ubuntu:24.04:LTSlinux-nvidia-lowlatency6.8.0-1049.52.1UBUNTU-CVE-2025-21833
Ubuntu:24.04:LTSlinux-nvidia-tegra6.8.0-1020.20UBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2025-21833
Ubuntu:24.04:LTSlinux-oem-6.11no fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-oem-6.5no fix listedUBUNTU-CVE-2025-21833
Ubuntu:24.04:LTSlinux-oem-6.8no fix listedUBUNTU-CVE-2025-21833
Ubuntu:24.04:LTSlinux-oracle6.8.0-1047.48UBUNTU-CVE-2025-21833
Ubuntu:24.04:LTSlinux-oracle6.8.0-1047.48USN-8095-1
Ubuntu:22.04:LTSlinux-oracle-6.5no fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1047.48~22.04.1UBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-oracle-6.86.8.0-1047.48~22.04.1USN-8095-1
Ubuntu:24.04:LTSlinux-raspi6.8.0-1050.54UBUNTU-CVE-2025-21833
Ubuntu:24.04:LTSlinux-raspi6.8.0-1050.54USN-8095-5
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-21833
Ubuntu:24.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-21833
Ubuntu:24.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-riscv-6.5no fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-riscv-6.86.8.0-106.106~22.04.1UBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2025-21833
Ubuntu:22.04:LTSlinux-starfive-6.5no fix listedUBUNTU-CVE-2025-21833
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1028.29UBUNTU-CVE-2025-21833
Ubuntu:24.04:LTSlinux-xilinx6.8.0-1029.30USN-8261-1

Affected products (as reported)

VendorProductVersions
Linux Linux d87731f609318a27e9aa3d01cf97798599d32839 – before 68ec78beb4a3fb0877cbaaf49758c85410c05977d87731f609318a27e9aa3d01cf97798599d32839 – before df96876be3b064aefc493f760e0639765d13ed0dd87731f609318a27e9aa3d01cf97798599d32839 – before 60f030f7418d3f1d94f2fb207fe3080e1844630b
Linux Linux 6.7

Weakness: CWE-476 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References