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Vulnerabilities

CVE-2025-71156

High
In the Linux kernel, the following vulnerability has been resolved: gve: defer interrupt enabling until NAPI registration Currently, interrupts are automatically enabled immediately upon request. Th
Published: Jan 23, 2026  ·  Modified: Feb 28, 2026  ·  Source: NVD
CVSS v3
7.8
🔗 NVD Official
📄 Description (English)

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

gve: defer interrupt enabling until NAPI registration

Currently, interrupts are automatically enabled immediately upon
request. This allows interrupt to fire before the associated NAPI
context is fully initialized and cause failures like below:

[ 0.946369] Call Trace:
[ 0.946369] <IRQ>
[ 0.946369] __napi_poll+0x2a/0x1e0
[ 0.946369] net_rx_action+0x2f9/0x3f0
[ 0.946369] handle_softirqs+0xd6/0x2c0
[ 0.946369] ? handle_edge_irq+0xc1/0x1b0
[ 0.946369] __irq_exit_rcu+0xc3/0xe0
[ 0.946369] common_interrupt+0x81/0xa0
[ 0.946369] </IRQ>
[ 0.946369] <TASK>
[ 0.946369] asm_common_interrupt+0x22/0x40
[ 0.946369] RIP: 0010:pv_native_safe_halt+0xb/0x10

Use the `IRQF_NO_AUTOEN` flag when requesting interrupts to prevent auto
enablement and explicitly enable the interrupt in NAPI initialization
path (and disable it during NAPI teardown).

This ensures that interrupt lifecycle is strictly coupled with
readiness of NAPI context.

🤖 AI Executive Summary

CVE-2025-71156 is a Linux kernel vulnerability in the Google Virtual Ethernet (GVE) driver affecting kernel versions up to 6.19-rc3. The vulnerability allows interrupts to fire before NAPI (New API) context initialization is complete, causing kernel panics and system instability. This race condition has a CVSS score of 7.8 (high) and impacts cloud infrastructure and virtualized environments commonly used by Saudi organizations.

📄 Description (Arabic)

🤖 AI Intelligence Analysis Analyzed: Apr 28, 2026 07:49
🇸🇦 Saudi Arabia Impact Assessment
This vulnerability primarily impacts Saudi organizations using Google Cloud Platform (GCP) or similar virtualized infrastructure, including: (1) Banking sector institutions relying on cloud-based transaction processing and SAMA-regulated systems; (2) Government agencies using cloud infrastructure for critical services; (3) Telecommunications providers (STC, Mobily, Zain) operating virtualized network functions; (4) Healthcare organizations using cloud-based patient data systems; (5) Energy sector (ARAMCO, utilities) running virtualized SCADA and operational systems. The vulnerability causes kernel panics that can lead to service disruptions, data loss, and compliance violations under SAMA CSF and NCA ECC frameworks.
🏢 Affected Saudi Sectors
Banking and Financial Services Government and Public Administration Telecommunications Healthcare Energy and Utilities Cloud Service Providers Data Centers
⚖️ Saudi Risk Score (AI)
7.8
/ 10.0
🔧 Remediation Steps (English)
Immediate Actions:
1. Identify systems running affected Linux kernel versions (6.19-rc1 through 6.19-rc3 and earlier versions with GVE driver)
2. Check kernel version: uname -r
3. Verify GVE driver presence: lsmod | grep gve

Patching Guidance:
1. Update to Linux kernel 6.19-rc4 or later, or apply the official patch that implements IRQF_NO_AUTOEN flag
2. For production systems, coordinate with cloud provider (GCP) for kernel updates
3. Test patches in non-production environment first
4. Schedule maintenance windows for kernel updates to minimize service disruption

Compensating Controls (if immediate patching unavailable):
1. Implement network redundancy and failover mechanisms
2. Enable kernel panic monitoring and automatic restart: echo 10 > /proc/sys/kernel/panic
3. Monitor system logs for GVE driver errors: journalctl -u kernel | grep gve
4. Implement rate limiting on interrupt-heavy workloads

Detection Rules:
1. Monitor for kernel panic messages containing 'napi_poll' or 'gve' in system logs
2. Alert on unexpected system reboots or service interruptions
3. Track GVE driver error rates and interrupt handling anomalies
4. Implement kernel module integrity checking for gve driver
🔧 خطوات المعالجة (العربية)
الإجراءات الفورية:
1. تحديد الأنظمة التي تعمل بإصدارات نواة Linux المتأثرة (6.19-rc1 إلى 6.19-rc3 والإصدارات السابقة مع برنامج تشغيل GVE)
2. التحقق من إصدار النواة: uname -r
3. التحقق من وجود برنامج تشغيل GVE: lsmod | grep gve

إرشادات التصحيح:
1. التحديث إلى نواة Linux 6.19-rc4 أو أحدث، أو تطبيق الرقعة الرسمية التي تطبق علم IRQF_NO_AUTOEN
2. للأنظمة الإنتاجية، التنسيق مع مزود الخدمة السحابية (GCP) لتحديثات النواة
3. اختبار الرقع في بيئة غير الإنتاج أولاً
4. جدولة نوافذ الصيانة لتحديثات النواة لتقليل انقطاع الخدمة

الضوابط البديلة (إذا لم يكن التصحيح الفوري متاحاً):
1. تطبيق التكرار والفشل على مستوى الشبكة
2. تفعيل مراقبة الذعر في النواة وإعادة التشغيل التلقائي: echo 10 > /proc/sys/kernel/panic
3. مراقبة سجلات النظام لأخطاء برنامج تشغيل GVE: journalctl -u kernel | grep gve
4. تطبيق تحديد معدل على أحمال العمل الثقيلة على المقاطعات

قواعد الكشف:
1. مراقبة رسائل الذعر في النواة التي تحتوي على 'napi_poll' أو 'gve' في سجلات النظام
2. التنبيه على إعادة تشغيل النظام غير المتوقعة أو انقطاع الخدمة
3. تتبع معدلات أخطاء برنامج تشغيل GVE والشذوذ في معالجة المقاطعات
4. تطبيق فحص سلامة وحدة النواة لبرنامج تشغيل gve
📋 Regulatory Compliance Mapping
🟢 NCA ECC 2024
ECC 2024 - 5.1.1: System Availability and Resilience ECC 2024 - 5.2.1: Patch Management and Updates ECC 2024 - 5.3.2: Infrastructure Security ECC 2024 - 6.1.1: Incident Detection and Response
🔵 SAMA CSF
SAMA CSF - ID.BE-1: Business Continuity and Disaster Recovery SAMA CSF - PR.IP-12: System and Software Updates SAMA CSF - DE.AE-1: Anomalies and Events Detection SAMA CSF - RS.MI-1: Incident Response Procedures
🟡 ISO 27001:2022
ISO 27001:2022 - A.12.6.1: Management of technical vulnerabilities ISO 27001:2022 - A.14.2.1: Information security requirements analysis and specification ISO 27001:2022 - A.12.2.1: Configuration management ISO 27001:2022 - A.16.1.5: Response to information security incidents
🟣 PCI DSS v4.0.1
PCI DSS 4.0 - 6.2: Security patches and updates PCI DSS 4.0 - 6.3.1: Vulnerability identification and remediation PCI DSS 4.0 - 12.3.1: Incident response procedures
📦 Affected Products / CPE 5 entries
linux:linux_kernel
linux:linux_kernel
linux:linux_kernel:6.19
linux:linux_kernel:6.19
linux:linux_kernel:6.19
📊 CVSS Score
7.8
/ 10.0 — High
📊 CVSS Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack VectorL — Low / Local
Attack ComplexityL — Low / Local
Privileges RequiredL — Low / Local
User InteractionN — None / Network
ScopeU — Unchanged
ConfidentialityH — High
IntegrityH — High
AvailabilityH — High
📋 Quick Facts
Severity High
CVSS Score7.8
EPSS0.02%
Exploit No
Patch ✓ Yes
Published 2026-01-23
Source Feed nvd
Views 5
🇸🇦 Saudi Risk Score
7.8
/ 10.0 — Saudi Risk
Priority: HIGH
🏷️ Tags
patch-available
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