PT-2025-25982 · Linux+1 · Linux Kernel+1

Published 2022-06-06 · Updated 2025-06-18 · CVE-2022-50056

Positive Technologies (AI Summary)

CVSS v2.0

6.0

Medium

Base vector

AV:L/AC:H/Au:S/C:C/I:C/A:C

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

Description The issue is related to a null pointer dereference in the Linux kernel, specifically in the ntfs read mft function within the fs/ntfs3 module. This occurs because the i op is not initialized for records in $Extend, leading to a null pointer dereference when i op equals NULL.

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

Exploit

Improper Resource Release

NULL Pointer Dereference

Weakness Enumeration

CWE-404

CWE-476

Related Identifiers

BDU:2026-04896

CVE-2022-50056

Affected Products

Astra Linux

Linux Kernel

References · 16

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50056.json · Exploit
• https://git.kernel.org/stable/c/37a530bfe56ca9a0d3129598803f2794c7428aae · Patch
• https://git.kernel.org/stable/c/8089a1bc27b41e6800590a92d17c119e9aa8ff53 · Patch
• https://bdu.fstec.ru/vul/2026-04896 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2022-50056 · Vendor Advisory
• https://ubuntu.com/security/CVE-2022-50056 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2022-50056 · Vendor Advisory
• https://git.kernel.org/stable/c/c293e8abc09e6e1faa50d967bd8862b1cbd575e5 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-50056 · Security Note
• https://cve.org/CVERecord?id=CVE-2022-50056 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2022-50056 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2022-50056 · Vendor Advisory
• https://twitter.com/CVEnew/status/1935356221722153264 · Twitter Post
• https://kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.63 · Note
• https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git · Note