# CVE-2025-71122: iommufd/selftest: Check for overflow in IOMMU_TEST_OP_ADD_RESERVED CVE-2025-71122 is fixed in 23 products on 1 platform, first by DEBIAN-CVE-2025-71122, released January 14, 2026. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2025-71122 - Priority: High - CVSS: 7.8 (Important) - EPSS: 0.0022 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Jan 14, 2026 - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-71122 ## 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. ## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | bpftool6.12 amzn 2023 | 1:6.12.64-87.122.amzn2023 | [ALAS2023-2026-1423](https://patchblox.com/security/data/fix/linux/alas2023-2026-1423.md) | Feb 5, 2026 | | Linux | bpftool6.12-debuginfo amzn 2023 | 1:6.12.64-87.122.amzn2023 | [ALAS2023-2026-1423](https://patchblox.com/security/data/fix/linux/alas2023-2026-1423.md) | Feb 5, 2026 | | Linux | kernel-livepatch-6.12.64-87.122 amzn 2023 | 1:1.0-0.amzn2023 | [ALAS2023-2026-1423](https://patchblox.com/security/data/fix/linux/alas2023-2026-1423.md) | Feb 5, 2026 | | Linux | kernel6.12 amzn 2023 | 1:6.12.64-87.122.amzn2023 | [ALAS2023-2026-1423](https://patchblox.com/security/data/fix/linux/alas2023-2026-1423.md) | Feb 5, 2026 | | Linux | kernel6.12-debuginfo amzn 2023 | 1:6.12.64-87.122.amzn2023 | [ALAS2023-2026-1423](https://patchblox.com/security/data/fix/linux/alas2023-2026-1423.md) | Feb 5, 2026 | | Linux | kernel6.12-debuginfo-common-aarch64 amzn 2023 | 1:6.12.64-87.122.amzn2023 | [ALAS2023-2026-1423](https://patchblox.com/security/data/fix/linux/alas2023-2026-1423.md) | Feb 5, 2026 | | Linux | kernel6.12-debuginfo-common-x86_64 amzn 2023 | 1:6.12.64-87.122.amzn2023 | [ALAS2023-2026-1423](https://patchblox.com/security/data/fix/linux/alas2023-2026-1423.md) | Feb 5, 2026 | | Linux | kernel6.12-devel amzn 2023 | 1:6.12.64-87.122.amzn2023 | [ALAS2023-2026-1423](https://patchblox.com/security/data/fix/linux/alas2023-2026-1423.md) | Feb 5, 2026 | | Linux | kernel6.12-headers amzn 2023 | 1:6.12.64-87.122.amzn2023 | [ALAS2023-2026-1423](https://patchblox.com/security/data/fix/linux/alas2023-2026-1423.md) | Feb 5, 2026 | | Linux | kernel6.12-libbpf amzn 2023 | 1:6.12.64-87.122.amzn2023 | [ALAS2023-2026-1423](https://patchblox.com/security/data/fix/linux/alas2023-2026-1423.md) | Feb 5, 2026 | | Linux | kernel6.12-libbpf-debuginfo amzn 2023 | 1:6.12.64-87.122.amzn2023 | [ALAS2023-2026-1423](https://patchblox.com/security/data/fix/linux/alas2023-2026-1423.md) | Feb 5, 2026 | | Linux | kernel6.12-libbpf-devel amzn 2023 | 1:6.12.64-87.122.amzn2023 | [ALAS2023-2026-1423](https://patchblox.com/security/data/fix/linux/alas2023-2026-1423.md) | Feb 5, 2026 | | Linux | kernel6.12-libbpf-static amzn 2023 | 1:6.12.64-87.122.amzn2023 | [ALAS2023-2026-1423](https://patchblox.com/security/data/fix/linux/alas2023-2026-1423.md) | Feb 5, 2026 | | Linux | kernel6.12-modules-extra amzn 2023 | 1:6.12.64-87.122.amzn2023 | [ALAS2023-2026-1423](https://patchblox.com/security/data/fix/linux/alas2023-2026-1423.md) | Feb 5, 2026 | | Linux | kernel6.12-modules-extra-common amzn 2023 | 1:6.12.64-87.122.amzn2023 | [ALAS2023-2026-1423](https://patchblox.com/security/data/fix/linux/alas2023-2026-1423.md) | Feb 5, 2026 | | Linux | kernel6.12-tools amzn 2023 | 1:6.12.64-87.122.amzn2023 | [ALAS2023-2026-1423](https://patchblox.com/security/data/fix/linux/alas2023-2026-1423.md) | Feb 5, 2026 | | Linux | kernel6.12-tools-debuginfo amzn 2023 | 1:6.12.64-87.122.amzn2023 | [ALAS2023-2026-1423](https://patchblox.com/security/data/fix/linux/alas2023-2026-1423.md) | Feb 5, 2026 | | Linux | kernel6.12-tools-devel amzn 2023 | 1:6.12.64-87.122.amzn2023 | [ALAS2023-2026-1423](https://patchblox.com/security/data/fix/linux/alas2023-2026-1423.md) | Feb 5, 2026 | | Linux | linux Debian 13.5 (trixie) | 6.12.69-1 | [DEBIAN-CVE-2025-71122](https://patchblox.com/security/data/fix/linux/debian-cve-2025-71122.md) | Jan 14, 2026 | | Linux | linux Debian 14 | 6.18.3-1 | [DEBIAN-CVE-2025-71122](https://patchblox.com/security/data/fix/linux/debian-cve-2025-71122.md) | Jan 14, 2026 | | Linux | perf6.12 amzn 2023 | 1:6.12.64-87.122.amzn2023 | [ALAS2023-2026-1423](https://patchblox.com/security/data/fix/linux/alas2023-2026-1423.md) | Feb 5, 2026 | | Linux | perf6.12-debuginfo amzn 2023 | 1:6.12.64-87.122.amzn2023 | [ALAS2023-2026-1423](https://patchblox.com/security/data/fix/linux/alas2023-2026-1423.md) | Feb 5, 2026 | | Linux | python3-perf6.12 amzn 2023 | 1:6.12.64-87.122.amzn2023 | [ALAS2023-2026-1423](https://patchblox.com/security/data/fix/linux/alas2023-2026-1423.md) | Feb 5, 2026 | | Linux | python3-perf6.12-debuginfo amzn 2023 | 1:6.12.64-87.122.amzn2023 | [ALAS2023-2026-1423](https://patchblox.com/security/data/fix/linux/alas2023-2026-1423.md) | Feb 5, 2026 | --- Data as of 2026-11-08T13:06:02Z UTC. 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