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Vulnerability record · CVE-2025-71122 · published 14 January 2026

CVE-2025-71122: Linux kernel vulnerability

Linux · Linux Kernel

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.

7.8 CVSS 3.1 High EPSS 0.21% · top 89.6%
7.8CVSS 3.1 base score
0.21%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/stable/c/4cc829d61f10c20523fd4085c1546e741a792a97 Patch
https://git.kernel.org/stable/c/b166b8e0a381429fefd9180e67fbc834b3cee82f Patch
https://git.kernel.org/stable/c/e6a973af11135439de32ece3b9cbe3bfc043bea8 Patch
https://git.kernel.org/stable/c/e6c122cffcbb2e84d321ec8ba0e38ce8e7c10925 Patch

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Source: NIST National Vulnerability Database (record CVE-2025-71122), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.