CVE-2026-31402 — AI Deep Analysis Summary

🚨 **Essence**: Linux Kernel has a critical flaw in **LOCK response size validation**. <br>💥 **Consequences**: This oversight leads to a **Heap Buffer Overflow**.…

🛡️ **Root Cause**: The core issue is **Unvalidated Input Size**. Specifically, the kernel fails to verify the size of the LOCK response before processing.…

📦 **Affected**: **Linux Kernel** (Open Source OS by Linux Foundation). <br>🌍 **Scope**: All versions containing the vulnerable code path.…

🔓 **Privileges**: High Risk. CVSS Score indicates **High Impact** on Confidentiality, Integrity, and Availability. <br>👤 **Access**: No privileges required (PR:N).…

⚡ **Threshold**: **LOW**. <br>🔑 **Auth**: None required (PR:N). <br>👀 **UI**: None required (UI:N). <br>🌐 **Network**: Network-accessible (AV:N).…

🚫 **Public Exploit**: **No**. The `pocs` field is empty. <br>📜 **References**: Links point to kernel git commits (patches), not exploit code.…

🔍 **Self-Check**: <br>1. Check Linux Kernel version against the commit hashes provided in references. <br>2. Monitor for unexpected kernel panics or heap corruption logs. <br>3.…

✅ **Fixed**: **Yes**. <br>🛠️ **Patch**: Multiple commits are listed in the references (e.g., `5133b61aaf43...`, `0f0e2a54a31a...`). These are stable kernel patches addressing the issue. <br>📅 **Published**: 2026-04-03.

🚧 **Workaround**: If patching is delayed: <br>1. **Isolate**: Restrict network access to the affected system. <br>2. **Monitor**: Enable strict kernel logging and intrusion detection. <br>3.…

🔥 **Urgency**: **CRITICAL**. <br>📊 **CVSS**: High severity (C:H, I:H, A:H). <br>🚀 **Priority**: Immediate action required.…