High 7.8Published Jan 14, 2026

CVE-2025-71122iommufd/selftest: Check for overflow in IOMMU_TEST_OP_ADD_RESERVED

Updated under an hour ago (Oct 26, 2026, 9:30 PM ET)

Does this affect you?

It affects Linux and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Linux

Exploited in the last 30 days

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: 7.8 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: May 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from f4b20bb34c83dceade5470288f48f94ce3598ada before 4cc829d61f10c20523fd4085c1546e741a792a97; from f4b20bb34c83dceade5470288f48f94ce3598ada before e6c122cffcbb2e84d321ec8ba0e38ce8e7c10925; from f4b20bb34c83dceade5470288f48f94ce3598ada before b166b8e0a381429fefd9180e67fbc834b3cee82f; from f4b20bb34c83dceade5470288f48f94ce3598ada before e6a973af11135439de32ece3b9cbe3bfc043bea8	CNA record
linux linux_kernel linux:linux_kernel	from 6.2.1 before 6.6.120; from 6.7 before 6.12.64; from 6.13 before 6.18.3; 6.2; 6.19; 6.19; 6.19; 6.19; and 4 more ranges	NVD

References

References

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

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.