# CVE-2025-40313: ntfs3: pretend $Extend records as regular files

CVE-2025-40313 is fixed in 45 products on 1 platform, first by DEBIAN-CVE-2025-40313, released December 8, 2025. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2025-40313
- Priority: Routine
- CVSS: 5.5 (Moderate)
- EPSS: 0.0019
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Dec 8, 2025
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-40313

## Description

In the Linux kernel, the following vulnerability has been resolved:  ntfs3: pretend $Extend records as regular files  Since commit af153bb63a33 ("vfs: catch invalid modes in may_open()") requires any inode be one of S_IFDIR/S_IFLNK/S_IFREG/S_IFCHR/S_IFBLK/ S_IFIFO/S_IFSOCK type, use S_IFREG for $Extend records.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | bpftool amzn 2023 | 1:6.1.159-181.297.amzn2023 | [ALAS2023-2025-1350](https://patchblox.com/security/data/fix/linux/alas2023-2025-1350.md) | Jan 7, 2026 |
| Linux | bpftool-debuginfo amzn 2023 | 1:6.1.159-181.297.amzn2023 | [ALAS2023-2025-1350](https://patchblox.com/security/data/fix/linux/alas2023-2025-1350.md) | Jan 7, 2026 |
| Linux | bpftool6.12 amzn 2023 | 1:6.12.58-82.121.amzn2023 | [ALAS2023-2026-1495](https://patchblox.com/security/data/fix/linux/alas2023-2026-1495.md) | Mar 16, 2026 |
| Linux | bpftool6.12-debuginfo amzn 2023 | 1:6.12.58-82.121.amzn2023 | [ALAS2023-2026-1495](https://patchblox.com/security/data/fix/linux/alas2023-2026-1495.md) | Mar 16, 2026 |
| Linux | kernel amzn 2023 | 1:6.1.159-181.297.amzn2023 | [ALAS2023-2025-1350](https://patchblox.com/security/data/fix/linux/alas2023-2025-1350.md) | Jan 7, 2026 |
| Linux | kernel-debuginfo amzn 2023 | 1:6.1.159-181.297.amzn2023 | [ALAS2023-2025-1350](https://patchblox.com/security/data/fix/linux/alas2023-2025-1350.md) | Jan 7, 2026 |
| Linux | kernel-debuginfo-common-aarch64 amzn 2023 | 1:6.1.159-181.297.amzn2023 | [ALAS2023-2025-1350](https://patchblox.com/security/data/fix/linux/alas2023-2025-1350.md) | Jan 7, 2026 |
| Linux | kernel-debuginfo-common-x86_64 amzn 2023 | 1:6.1.159-181.297.amzn2023 | [ALAS2023-2025-1350](https://patchblox.com/security/data/fix/linux/alas2023-2025-1350.md) | Jan 7, 2026 |
| Linux | kernel-devel amzn 2023 | 1:6.1.159-181.297.amzn2023 | [ALAS2023-2025-1350](https://patchblox.com/security/data/fix/linux/alas2023-2025-1350.md) | Jan 7, 2026 |
| Linux | kernel-headers amzn 2023 | 1:6.1.159-181.297.amzn2023 | [ALAS2023-2025-1350](https://patchblox.com/security/data/fix/linux/alas2023-2025-1350.md) | Jan 7, 2026 |
| Linux | kernel-libbpf amzn 2023 | 1:6.1.159-181.297.amzn2023 | [ALAS2023-2025-1350](https://patchblox.com/security/data/fix/linux/alas2023-2025-1350.md) | Jan 7, 2026 |
| Linux | kernel-libbpf-debuginfo amzn 2023 | 1:6.1.159-181.297.amzn2023 | [ALAS2023-2025-1350](https://patchblox.com/security/data/fix/linux/alas2023-2025-1350.md) | Jan 7, 2026 |
| Linux | kernel-libbpf-devel amzn 2023 | 1:6.1.159-181.297.amzn2023 | [ALAS2023-2025-1350](https://patchblox.com/security/data/fix/linux/alas2023-2025-1350.md) | Jan 7, 2026 |
| Linux | kernel-libbpf-static amzn 2023 | 1:6.1.159-181.297.amzn2023 | [ALAS2023-2025-1350](https://patchblox.com/security/data/fix/linux/alas2023-2025-1350.md) | Jan 7, 2026 |
| Linux | kernel-livepatch-6.1.159-181.297 amzn 2023 | 1:1.0-0.amzn2023 | [ALAS2023-2025-1350](https://patchblox.com/security/data/fix/linux/alas2023-2025-1350.md) | Jan 7, 2026 |
| Linux | kernel-livepatch-6.12.58-82.121 amzn 2023 | 1:1.0-0.amzn2023 | [ALAS2023-2026-1495](https://patchblox.com/security/data/fix/linux/alas2023-2026-1495.md) | Mar 16, 2026 |
| Linux | kernel-modules-extra amzn 2023 | 1:6.1.159-181.297.amzn2023 | [ALAS2023-2025-1350](https://patchblox.com/security/data/fix/linux/alas2023-2025-1350.md) | Jan 7, 2026 |
| Linux | kernel-modules-extra-common amzn 2023 | 1:6.1.159-181.297.amzn2023 | [ALAS2023-2025-1350](https://patchblox.com/security/data/fix/linux/alas2023-2025-1350.md) | Jan 7, 2026 |
| Linux | kernel-tools amzn 2023 | 1:6.1.159-181.297.amzn2023 | [ALAS2023-2025-1350](https://patchblox.com/security/data/fix/linux/alas2023-2025-1350.md) | Jan 7, 2026 |
| Linux | kernel-tools-debuginfo amzn 2023 | 1:6.1.159-181.297.amzn2023 | [ALAS2023-2025-1350](https://patchblox.com/security/data/fix/linux/alas2023-2025-1350.md) | Jan 7, 2026 |
| Linux | kernel-tools-devel amzn 2023 | 1:6.1.159-181.297.amzn2023 | [ALAS2023-2025-1350](https://patchblox.com/security/data/fix/linux/alas2023-2025-1350.md) | Jan 7, 2026 |
| Linux | kernel6.12 amzn 2023 | 1:6.12.58-82.121.amzn2023 | [ALAS2023-2026-1495](https://patchblox.com/security/data/fix/linux/alas2023-2026-1495.md) | Mar 16, 2026 |
| Linux | kernel6.12-debuginfo amzn 2023 | 1:6.12.58-82.121.amzn2023 | [ALAS2023-2026-1495](https://patchblox.com/security/data/fix/linux/alas2023-2026-1495.md) | Mar 16, 2026 |
| Linux | kernel6.12-debuginfo-common-aarch64 amzn 2023 | 1:6.12.58-82.121.amzn2023 | [ALAS2023-2026-1495](https://patchblox.com/security/data/fix/linux/alas2023-2026-1495.md) | Mar 16, 2026 |
| Linux | kernel6.12-debuginfo-common-x86_64 amzn 2023 | 1:6.12.58-82.121.amzn2023 | [ALAS2023-2026-1495](https://patchblox.com/security/data/fix/linux/alas2023-2026-1495.md) | Mar 16, 2026 |
| Linux | kernel6.12-devel amzn 2023 | 1:6.12.58-82.121.amzn2023 | [ALAS2023-2026-1495](https://patchblox.com/security/data/fix/linux/alas2023-2026-1495.md) | Mar 16, 2026 |
| Linux | kernel6.12-headers amzn 2023 | 1:6.12.58-82.121.amzn2023 | [ALAS2023-2026-1495](https://patchblox.com/security/data/fix/linux/alas2023-2026-1495.md) | Mar 16, 2026 |
| Linux | kernel6.12-libbpf amzn 2023 | 1:6.12.58-82.121.amzn2023 | [ALAS2023-2026-1495](https://patchblox.com/security/data/fix/linux/alas2023-2026-1495.md) | Mar 16, 2026 |
| Linux | kernel6.12-libbpf-debuginfo amzn 2023 | 1:6.12.58-82.121.amzn2023 | [ALAS2023-2026-1495](https://patchblox.com/security/data/fix/linux/alas2023-2026-1495.md) | Mar 16, 2026 |
| Linux | kernel6.12-libbpf-devel amzn 2023 | 1:6.12.58-82.121.amzn2023 | [ALAS2023-2026-1495](https://patchblox.com/security/data/fix/linux/alas2023-2026-1495.md) | Mar 16, 2026 |
| Linux | kernel6.12-libbpf-static amzn 2023 | 1:6.12.58-82.121.amzn2023 | [ALAS2023-2026-1495](https://patchblox.com/security/data/fix/linux/alas2023-2026-1495.md) | Mar 16, 2026 |
| Linux | kernel6.12-modules-extra amzn 2023 | 1:6.12.58-82.121.amzn2023 | [ALAS2023-2026-1495](https://patchblox.com/security/data/fix/linux/alas2023-2026-1495.md) | Mar 16, 2026 |
| Linux | kernel6.12-modules-extra-common amzn 2023 | 1:6.12.58-82.121.amzn2023 | [ALAS2023-2026-1495](https://patchblox.com/security/data/fix/linux/alas2023-2026-1495.md) | Mar 16, 2026 |
| Linux | kernel6.12-tools amzn 2023 | 1:6.12.58-82.121.amzn2023 | [ALAS2023-2026-1495](https://patchblox.com/security/data/fix/linux/alas2023-2026-1495.md) | Mar 16, 2026 |
| Linux | kernel6.12-tools-debuginfo amzn 2023 | 1:6.12.58-82.121.amzn2023 | [ALAS2023-2026-1495](https://patchblox.com/security/data/fix/linux/alas2023-2026-1495.md) | Mar 16, 2026 |
| Linux | kernel6.12-tools-devel amzn 2023 | 1:6.12.58-82.121.amzn2023 | [ALAS2023-2026-1495](https://patchblox.com/security/data/fix/linux/alas2023-2026-1495.md) | Mar 16, 2026 |
| Linux | linux Debian 12.15 (bookworm) | 6.1.159-1 | [DEBIAN-CVE-2025-40313](https://patchblox.com/security/data/fix/linux/debian-cve-2025-40313.md) | Dec 8, 2025 |
| Linux | linux Debian 13.5 (trixie) | 6.12.63-1 | [DEBIAN-CVE-2025-40313](https://patchblox.com/security/data/fix/linux/debian-cve-2025-40313.md) | Dec 8, 2025 |
| Linux | linux Debian 14 | 6.17.8-1 | [DEBIAN-CVE-2025-40313](https://patchblox.com/security/data/fix/linux/debian-cve-2025-40313.md) | Dec 8, 2025 |
| Linux | perf amzn 2023 | 1:6.1.159-181.297.amzn2023 | [ALAS2023-2025-1350](https://patchblox.com/security/data/fix/linux/alas2023-2025-1350.md) | Jan 7, 2026 |
| Linux | perf-debuginfo amzn 2023 | 1:6.1.159-181.297.amzn2023 | [ALAS2023-2025-1350](https://patchblox.com/security/data/fix/linux/alas2023-2025-1350.md) | Jan 7, 2026 |
| Linux | perf6.12 amzn 2023 | 1:6.12.58-82.121.amzn2023 | [ALAS2023-2026-1495](https://patchblox.com/security/data/fix/linux/alas2023-2026-1495.md) | Mar 16, 2026 |
| Linux | perf6.12-debuginfo amzn 2023 | 1:6.12.58-82.121.amzn2023 | [ALAS2023-2026-1495](https://patchblox.com/security/data/fix/linux/alas2023-2026-1495.md) | Mar 16, 2026 |
| Linux | python3-perf amzn 2023 | 1:6.1.159-181.297.amzn2023 | [ALAS2023-2025-1350](https://patchblox.com/security/data/fix/linux/alas2023-2025-1350.md) | Jan 7, 2026 |
| Linux | python3-perf-debuginfo amzn 2023 | 1:6.1.159-181.297.amzn2023 | [ALAS2023-2025-1350](https://patchblox.com/security/data/fix/linux/alas2023-2025-1350.md) | Jan 7, 2026 |
| Linux | python3-perf6.12 amzn 2023 | 1:6.12.58-82.121.amzn2023 | [ALAS2023-2026-1495](https://patchblox.com/security/data/fix/linux/alas2023-2026-1495.md) | Mar 16, 2026 |
| Linux | python3-perf6.12-debuginfo amzn 2023 | 1:6.12.58-82.121.amzn2023 | [ALAS2023-2026-1495](https://patchblox.com/security/data/fix/linux/alas2023-2026-1495.md) | Mar 16, 2026 |

---

Data as of 2026-11-08T00:53:09Z 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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