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Back to active CVEs
Unknown severity · Source severity not reportedCVE-2025-71122

iommufd/selftest: Check for overflow in IOMMU_TEST_OP_ADD_RESERVEDCVE-2025-71122

Answer in brief

CVE-2025-71122 records a Unknown severity vulnerability in iommufd/selftest: Check for overflow in IOMMU_TEST_OP_ADD_RESERVED. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jan 14, 2026Updated Nov 5, 2026Source checked Nov 5, 2026First seen by HOL Nov 5, 2026Material review Nov 5, 2026
Upstream Advisory

Key facts

Risk
Unknown severitySource severity not reported
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=f4b20bb34c83dceade5470288f48f94ce3598ada <4cc829d61f10c20523fd4085c1546e741a792a97 || >=f4b20bb34c83dceade5470288f48f94ce3598ada <e6c122cffcbb2e84d321ec8ba0e38ce8e7c10925 || >=f4b20bb34c83dceade5470288f48f94ce3598ada <b166b8e0a381429fefd9180e67fbc834b3cee82f || >=f4b20bb34c83dceade5470288f48f94ce3598ada <e6a973af11135439de32ece3b9cbe3bfc043bea84cc829d61f10c20523fd4085c1546e741a792a97, e6c122cffcbb2e84d321ec8ba0e38ce8e7c10925, b166b8e0a381429fefd9180e67fbc834b3cee82f, e6a973af11135439de32ece3b9cbe3bfc043bea8
Linux/Linuxgeneric6.2Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
  2. 2Review the reported fix. Update Linux/Linux to 4cc829d61f10c20523fd4085c1546e741a792a97 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Jan 14, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 5, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 5, 2026

Sources and claim methodology

  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
Upstream source description

In the Linux kernel, the following vulnerability has been resolved: iommufd/selftest: Check for overflow in IOMMU_TEST_OP_ADD_RESERVED syzkaller found it could overflow math in the test infrastructure and cause a WARN_ON by corrupting the reserved interval tree. This only effects test kernels with CONFIG_IOMMUFD_TEST. Validate the user input length in the test ioctl.

Quoted source text, attributed separately from HOL analysis.

Record context

Vulnerability class
Vulnerability
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Nov 5, 2026
References
4 linked sources
Open source record