# CVE-2025-71267: fs: ntfs3: fix infinite loop triggered by zero-sized ATTR_LIST

CVE-2025-71267 is fixed in 67 products on 1 platform, first by DEBIAN-CVE-2025-71267, released March 18, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2025-71267
- Priority: Routine
- CVSS: 5.5 (Moderate)
- EPSS: 0.0013
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 18, 2026
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-71267

## Description

In the Linux kernel, the following vulnerability has been resolved:  fs: ntfs3: fix infinite loop triggered by zero-sized ATTR_LIST  We found an infinite loop bug in the ntfs3 file system that can lead to a Denial-of-Service (DoS) condition.  A malformed NTFS image can cause an infinite loop when an ATTR_LIST attribute indicates a zero data size while the driver allocates memory for it.  When ntfs_load_attr_list() processes a resident ATTR_LIST with data_size set to zero, it still allocates memory because of al_aligned(0). This creates an inconsistent state where ni->attr_list.size is zero, but ni->attr_list.le is non-null. This causes ni_enum_attr_ex to incorrectly assume that no attribute list exists and enumerates only the primary MFT record. When it finds ATTR_LIST, the code reloads it and restarts the enumeration, repeating indefinitely. The mount operation never completes, hanging the kernel thread.  This patch adds validation to ensure that data_size is non-zero before memory allocation. When a zero-sized ATTR_LIST is detected, the function returns -EINVAL, preventing a DoS vulnerability.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | bpftool amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | bpftool-debuginfo amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | bpftool6.12 amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | bpftool6.12-debuginfo amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | bpftool6.18 amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | bpftool6.18-debuginfo amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel-debuginfo amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel-debuginfo-common-aarch64 amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel-debuginfo-common-x86_64 amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel-devel amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel-headers amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel-libbpf amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel-libbpf-debuginfo amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel-libbpf-devel amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel-libbpf-static amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel-livepatch-6.1.166-197.305 amzn 2023 | 1:1.0-0.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel-livepatch-6.12.77-99.140 amzn 2023 | 1:1.0-0.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel-livepatch-6.18.16-18.222 amzn 2023 | 1:1.0-0.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel-modules-extra amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel-modules-extra-common amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel-tools amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel-tools-debuginfo amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel-tools-devel amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | kernel6.12 amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-debuginfo amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-debuginfo-common-aarch64 amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-debuginfo-common-x86_64 amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-devel amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-headers amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-libbpf amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-libbpf-debuginfo amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-libbpf-devel amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-libbpf-static amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-modules-extra amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-modules-extra-common amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-tools amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-tools-debuginfo amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.12-tools-devel amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | kernel6.18 amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel6.18-debuginfo amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel6.18-debuginfo-common-aarch64 amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel6.18-debuginfo-common-x86_64 amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel6.18-devel amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel6.18-headers amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel6.18-libbpf amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel6.18-libbpf-debuginfo amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel6.18-libbpf-devel amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel6.18-libbpf-static amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel6.18-modules-extra amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel6.18-modules-extra-common amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel6.18-tools amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel6.18-tools-debuginfo amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | kernel6.18-tools-devel amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | linux Debian 12.15 (bookworm) | 6.1.170-1 | [DEBIAN-CVE-2025-71267](https://patchblox.com/security/data/fix/linux/debian-cve-2025-71267.md) | Mar 18, 2026 |
| Linux | linux Debian 13.5 (trixie) | 6.12.85-1 | [DEBIAN-CVE-2025-71267](https://patchblox.com/security/data/fix/linux/debian-cve-2025-71267.md) | Mar 18, 2026 |
| Linux | linux Debian 14 | 6.19.6-1 | [DEBIAN-CVE-2025-71267](https://patchblox.com/security/data/fix/linux/debian-cve-2025-71267.md) | Mar 18, 2026 |
| Linux | perf amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | perf-debuginfo amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | perf6.12 amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | perf6.12-debuginfo amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | perf6.18 amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | perf6.18-debuginfo amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | python3-perf amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | python3-perf-debuginfo amzn 2023 | 1:6.1.166-197.305.amzn2023 | [ALAS2023-2026-1544](https://patchblox.com/security/data/fix/linux/alas2023-2026-1544.md) | Apr 7, 2026 |
| Linux | python3-perf6.12 amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | python3-perf6.12-debuginfo amzn 2023 | 1:6.12.77-99.140.amzn2023 | [ALAS2023-2026-1543](https://patchblox.com/security/data/fix/linux/alas2023-2026-1543.md) | Apr 7, 2026 |
| Linux | python3-perf6.18 amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |
| Linux | python3-perf6.18-debuginfo amzn 2023 | 1:6.18.16-18.222.amzn2023 | [ALAS2023-2026-1702](https://patchblox.com/security/data/fix/linux/alas2023-2026-1702.md) | May 11, 2026 |

---

Data as of 2026-11-08T13:06:02Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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