CVE-2025-22118
📋 TL;DR
This CVE addresses an out-of-bounds memory access vulnerability in the Linux kernel's Intel Ethernet Connection Controller (ice) driver. An attacker could potentially cause a kernel crash or execute arbitrary code by exploiting improper validation of queue quanta parameters. Systems using affected Linux kernel versions with the ice driver loaded are vulnerable.
💻 Affected Systems
- Linux kernel with Intel Ethernet Connection Controller (ice) driver
📦 What is this software?
Linux Kernel by Linux
The Linux Kernel is the core component of the Linux operating system, serving as the critical interface between computer hardware and software processes. As the heart of millions of servers, cloud infrastructure, embedded systems, Android devices, and IoT deployments worldwide, the Linux Kernel mana...
Learn more about Linux Kernel →⚠️ Risk & Real-World Impact
Worst Case
Kernel panic leading to system crash, or potential arbitrary code execution with kernel privileges resulting in complete system compromise.
Likely Case
Kernel crash causing denial of service, requiring system reboot to restore functionality.
If Mitigated
With proper access controls and kernel hardening features, impact may be limited to denial of service.
🎯 Exploit Status
Exploitation requires local access and ability to configure network queue parameters. No public exploits have been reported.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Linux kernel with commits 4161cf3f4c11006507f4e02bedc048a215a4b81a and e2f7d3f7331b92cb820da23e8c45133305da1e63
Vendor Advisory: https://git.kernel.org/stable/c/4161cf3f4c11006507f4e02bedc048a215a4b81a
Restart Required: Yes
Instructions:
1. Update Linux kernel to version containing the fix commits. 2. For distributions: Use package manager (apt/yum/dnf) to update kernel package. 3. Reboot system to load patched kernel.
🔧 Temporary Workarounds
Disable ice driver
linuxPrevent loading of vulnerable driver if not needed
echo 'blacklist ice' >> /etc/modprobe.d/blacklist.conf
rmmod ice
Restrict queue configuration
linuxLimit access to network configuration tools
chmod 750 /sbin/ethtool
setcap -r /sbin/ethtool
🧯 If You Can't Patch
- Restrict local user access to prevent unauthorized queue configuration
- Implement kernel hardening features like SELinux/AppArmor to limit driver capabilities
🔍 How to Verify
Check if Vulnerable:
Check if ice driver is loaded: lsmod | grep ice && check kernel version against patched versionsCheck Version:
uname -rVerify Fix Applied:
Verify kernel version includes fix commits and ice driver loads without errors📡 Detection & Monitoring
Log Indicators:
- Kernel panic messages in /var/log/messages or dmesg
- ICE driver error messages related to queue configuration
Network Indicators:
- Sudden network interface disappearance
- Unexpected system reboots
SIEM Query:
source="kernel" AND ("panic" OR "Oops" OR "ICE")