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Vulnerabilities

CVE-2026-43132

Medium
Published: May 6, 2026  ·  Modified: May 9, 2026  ·  Source: NVD
CVSS v3
5.5
🔗 NVD Official
📄 Description (English)

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

dm-verity: correctly handle dm_bufio_client_create() failure

If either of the calls to dm_bufio_client_create() in verity_fec_ctr()
fails, then dm_bufio_client_destroy() is later called with an ERR_PTR()
argument. That causes a crash. Fix this.

🤖 AI Executive Summary

A vulnerability in Linux kernel's dm-verity module causes a crash when dm_bufio_client_create() fails, as the error pointer is incorrectly passed to dm_bufio_client_destroy(). The fix ensures proper error handling to prevent kernel crashes during device mapper verity initialization.

📄 Description (Arabic)

تحتوي وحدة dm-verity في نواة Linux على ثغرة في معالجة الأخطاء حيث يتم تمرير مؤشر خطأ (ERR_PTR) إلى دالة dm_bufio_client_destroy() عند فشل استدعاء dm_bufio_client_create(). هذا يسبب انهيار النواة (kernel crash) أثناء تهيئة جهاز mapper verity.

🤖 ملخص تنفيذي (AI)

A vulnerability in Linux kernel's dm-verity module causes a crash when dm_bufio_client_create() fails, as the error pointer is incorrectly passed to dm_bufio_client_destroy(). The fix ensures proper error handling to prevent kernel crashes during device mapper verity initialization.

🤖 AI Intelligence Analysis Analyzed: May 25, 2026 14:31
🇸🇦 Saudi Arabia Impact Assessment
Saudi Relevance: medium
🏢 Affected Saudi Sectors
telecom energy government healthcare
🎯 MITRE ATT&CK Techniques
⚖️ Saudi Risk Score (AI)
5.0
/ 10.0
🔧 Remediation Steps (English)
Update the Linux kernel to the patched version that properly checks for error pointers before calling dm_bufio_client_destroy() in the verity_fec_ctr() function. Implement proper error handling to validate dm_bufio_client_create() return values.
🔧 خطوات المعالجة (العربية)
قم بتحديث نواة Linux إلى النسخة المصححة التي تتحقق بشكل صحيح من مؤشرات الخطأ قبل استدعاء dm_bufio_client_destroy() في دالة verity_fec_ctr(). تطبيق معالجة الأخطاء الصحيحة للتحقق من قيم إرجاع dm_bufio_client_create().
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
A.12.6.1 A.14.2.1
🔵 SAMA CSF
ID.BE-5.1 PR.IP-1.1
🟡 ISO 27001:2022
A.12.6.1 A.14.2.1
📦 Affected Products / CPE 7 entries
linux:linux_kernel
linux:linux_kernel
linux:linux_kernel
linux:linux_kernel
linux:linux_kernel
linux:linux_kernel
linux:linux_kernel
📊 CVSS Score
5.5
/ 10.0 — Medium
📊 CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack VectorL — Low / Local
Attack ComplexityL — Low / Local
Privileges RequiredL — Low / Local
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityN — None / Network
IntegrityN — None / Network
AvailabilityH — High
📋 Quick Facts
Severity Medium
CVSS Score5.5
EPSS0.01%
Exploit No
Patch ✓ Yes
Published 2026-05-06
Source Feed nvd
Views 2
🇸🇦 Saudi Risk Score
5.0
/ 10.0 — Saudi Risk
Priority: MEDIUM
🏷️ Tags
patch-available
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