PT-2026-26044 · Linux+1 · Linux Kernel+1

Published 2025-01-01 · Updated 2026-05-21 · CVE-2025-71267

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A flaw exists in the ntfs3 file system that can result in a Denial-of-Service (DoS) condition. A specially crafted NTFS image can trigger an infinite loop when processing an ATTR LIST attribute with a zero data size during memory allocation. The ntfs load attr list() function allocates memory even when data size is zero, leading to an inconsistent state where ni->attr list.size is zero, but ni->attr list.le is not null. This causes the ni enum attr ex function to repeatedly reload the attribute list, resulting in an indefinite loop and a hung kernel thread. The issue is addressed by adding validation to ensure data size is non-zero before memory allocation, and returning -EINVAL when a zero-sized ATTR LIST is detected.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Infinite Loop

Weakness Enumeration

CWE-835

Related Identifiers

CVE-2025-71267

ECHO-75C3-D1D6-C1AC

Affected Products

Linux Kernel

Ntfs3

References · 23

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/71xxx/CVE-2025-71267.json · Exploit
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-71267 · Vendor Advisory
• https://git.kernel.org/stable/c/9267d99fade76d44d4a133599524031fe684156e · Patch
• https://osv.dev/vulnerability/CVE-2025-71267 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2404-CVE-2025-71267 · Vendor Advisory
• https://git.kernel.org/stable/c/9779a6eaaabdf47aa57910d352b398ad742e6a5f · Patch
• https://git.kernel.org/stable/c/976e6a7c51fabf150478decbe8ef5d9a26039b7c · Patch
• https://git.kernel.org/stable/c/8d8c70b57dbeda3eb165c0940b97e85373ca9354 · Patch
• https://git.kernel.org/stable/c/06909b2549d631a47fcda249d34be26f7ca1711d · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2025-71267 · Security Note
• https://ubuntu.com/security/CVE-2025-71267 · Vendor Advisory
• https://osv.dev/vulnerability/BELL-CVE-2025-71267 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-UBUNTU-2204-CVE-2025-71267 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2025-71267 · Security Note
• https://git.kernel.org/stable/c/fd508939dbca5eceefb2d0c2564beb15469572f2 · Patch