# CVE-2026-45935: linux: In the Linux kernel, the following vulnerability has been resolved:  fs/ntfs3: Fix slab-out-of-bounds read in DeleteI...

CVE-2026-45935 is fixed in 67 products on 1 platform, first by ALAS2023-2026-1514, released March 30, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-45935
- Priority: High
- CVSS: 7.8 (high)
- EPSS: 0.0015
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Mar 30, 2026

## Description

In the Linux kernel, the following vulnerability has been resolved:  fs/ntfs3: Fix slab-out-of-bounds read in DeleteIndexEntryRoot  In the 'DeleteIndexEntryRoot' case of the 'do_action' function, the entry size ('esize') is retrieved from the log record without adequate bounds checking.  Specifically, the code calculates the end of the entry ('e2') using:     e2 = Add2Ptr(e1, esize);  It then calculates the size for memmove using 'PtrOffset(e2, ...)', which subtracts the end pointer from the buffer limit. If 'esize' is maliciously large, 'e2' exceeds the used buffer size. This results in a negative offset which, when cast to size_t for memmove, interprets as a massive unsigned integer, leading to a heap buffer overflow.  This commit adds a check to ensure that the entry size ('esize') strictly fits within the remaining used space of the index header before performing memory operations.

## 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 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | bpftool6.18-debuginfo amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 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-6.18.15-14.217 amzn 2023 | 1:1.0-0.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 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 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | kernel6.18-debuginfo amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | kernel6.18-debuginfo-common-aarch64 amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | kernel6.18-debuginfo-common-x86_64 amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | kernel6.18-devel amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | kernel6.18-headers amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | kernel6.18-libbpf amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | kernel6.18-libbpf-debuginfo amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | kernel6.18-libbpf-devel amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | kernel6.18-libbpf-static amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | kernel6.18-modules-extra amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | kernel6.18-modules-extra-common amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | kernel6.18-tools amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | kernel6.18-tools-debuginfo amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | kernel6.18-tools-devel amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | linux Debian 12.15 (bookworm) | 6.1.170-1 | [DEBIAN-CVE-2026-45935](https://patchblox.com/security/data/fix/linux/debian-cve-2026-45935.md) | May 27, 2026 |
| Linux | linux Debian 13.5 (trixie) | 6.12.85-1 | [DEBIAN-CVE-2026-45935](https://patchblox.com/security/data/fix/linux/debian-cve-2026-45935.md) | May 27, 2026 |
| Linux | linux Debian 14 | 6.18.14-1 | [DEBIAN-CVE-2026-45935](https://patchblox.com/security/data/fix/linux/debian-cve-2026-45935.md) | May 27, 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 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | perf6.18-debuginfo amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 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 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |
| Linux | python3-perf6.18-debuginfo amzn 2023 | 1:6.18.15-14.217.amzn2023 | [ALAS2023-2026-1514](https://patchblox.com/security/data/fix/linux/alas2023-2026-1514.md) | Mar 30, 2026 |

---

Data as of 2026-11-08T06:59:42Z 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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