---
id: "CVE-2026-99260"
kind: "vulnerability"
aliases: ["CVE-2026-99260"]
title: "Linux kernel: NTFS resident attribute conversion flaw skips needed conversion"
severity: "unknown"
cvss: null
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["infrastructure", "linux-kernel", "ntfs"]
not_affected_if: []
published_at: "2026-11-03T12:17:32+00:00"
first_seen_at: "2026-11-03T12:20:39+00:00"
updated_at: "2026-11-03T12:22:46+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-99260", "first_seen_at": "2026-11-03T12:20:39+00:00"}]
---

# Linux kernel: NTFS resident attribute conversion flaw skips needed conversion

In the Linux kernel's NTFS driver, setting sparse or compressed flags on a resident attribute skipped the resident-to-non-resident conversion and terminated early. The sources do not state what an attacker gains from this.

_Summary, check and fix written by a model from the sources; labelled as such._

## Timeline

- 2026-11-03T12:20:39+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-99260

## From the sources

In the Linux kernel, the following vulnerability has been resolved:

ntfs: fix resident conversion in ntfs_new_attr_flags

When setting sparse/compressed flags on a resident attribute, the
function skipped the resident-to-non-resident conversion and
terminated.

---

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