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8.2
HIGH CVSS 3.1
CVE-2025-71311
fs/ntfs3: Initialize new folios before use
Overview
Description

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Initialize new folios before use KMSAN reports an uninitialized value in longest_match_std(), invoked from ntfs_compress_write(). When new folios are allocated without being marked uptodate and ni_read_frame() is skipped because the caller expects the frame to be completely overwritten, some reserved folios may remain only partially filled, leaving the rest memory uninitialized.

Details
INFO

Published Date :

May 27, 2026, 2:16 p.m.

Last Modified :

July 30, 2026, 6:24 a.m.

Remotely Exploit :

Yes !

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Impact
Affected Products

The following products are affected by CVE-2025-71311 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 MEDIUM [email protected]
CVSS 3.1 HIGH 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
Initialize folios correctly before use in the Linux kernel's NTFS3 driver.
  • Update the Linux kernel to the latest version.
  • Apply the patch for the NTFS3 driver.
  • Ensure folios are marked uptodate.
  • Review folio handling logic.
References
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-71311.

URL Resource
https://git.kernel.org/stable/c/41d79f8e2a36622d148719bf7c18b46ac1264284 Patch
https://git.kernel.org/stable/c/5a30cc03bde169ad558695b26da6ea7e55f6194a Patch
https://git.kernel.org/stable/c/dd6c81527d097b3b0bf5a15c2fdc9657d045144c Patch
https://git.kernel.org/stable/c/f223ebffa185cc8da934333c5a31ff2d4f992dc9 Patch
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-71311 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-71311 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-71311 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-71311 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jul. 30, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
  • Initial Analysis by [email protected]

    Jun. 25, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Added CWE CWE-908
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 up to (excluding) 6.18.14 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.19 up to (excluding) 6.19.4 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.11 up to (excluding) 6.12.75
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/41d79f8e2a36622d148719bf7c18b46ac1264284 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/5a30cc03bde169ad558695b26da6ea7e55f6194a Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/dd6c81527d097b3b0bf5a15c2fdc9657d045144c Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/f223ebffa185cc8da934333c5a31ff2d4f992dc9 Types: Patch
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jun. 17, 2026

    Action Type Old Value New Value
    Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2', 'lessThan': 'dd6c81527d097b3b0bf5a15c2fdc9657d045144c', 'versionType': 'git'}, {'status': 'affected', 'version': '584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2', 'lessThan': '5a30cc03bde169ad558695b26da6ea7e55f6194a', 'versionType': 'git'}, {'status': 'affected', 'version': '584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2', 'lessThan': '41d79f8e2a36622d148719bf7c18b46ac1264284', 'versionType': 'git'}, {'status': 'affected', 'version': '584f60ba22f79c89e6708ab82a5b5d9b8fa21fb2', 'lessThan': 'f223ebffa185cc8da934333c5a31ff2d4f992dc9', 'versionType': 'git'}], 'programFiles': ['fs/ntfs3/file.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.11'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.11', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.12.75', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.14', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '6.19.4', 'versionType': 'semver', 'lessThanOrEqual': '6.19.*'}, {'status': 'unaffected', 'version': '7.0', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['fs/ntfs3/file.c'], 'defaultStatus': 'affected'}]
  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 27, 2026

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Initialize new folios before use KMSAN reports an uninitialized value in longest_match_std(), invoked from ntfs_compress_write(). When new folios are allocated without being marked uptodate and ni_read_frame() is skipped because the caller expects the frame to be completely overwritten, some reserved folios may remain only partially filled, leaving the rest memory uninitialized.
    Added Reference https://git.kernel.org/stable/c/41d79f8e2a36622d148719bf7c18b46ac1264284
    Added Reference https://git.kernel.org/stable/c/5a30cc03bde169ad558695b26da6ea7e55f6194a
    Added Reference https://git.kernel.org/stable/c/dd6c81527d097b3b0bf5a15c2fdc9657d045144c
    Added Reference https://git.kernel.org/stable/c/f223ebffa185cc8da934333c5a31ff2d4f992dc9
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CVSS
Vulnerability Scoring Details
Base CVSS Score: 8.2
Attack Vector
Attack Complexity
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Scope
Confidentiality Impact
Integrity Impact
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