CVE-2025-46710
📋 TL;DR
This CVE describes a use-after-free vulnerability in Imagination Technologies GPU drivers that could allow attackers to cause kernel exceptions or potentially execute arbitrary code. It affects systems using Imagination GPU hardware with vulnerable driver versions. The vulnerability requires local access to exploit.
💻 Affected Systems
- Imagination Technologies GPU drivers
📦 What is this software?
Ddk by Imaginationtech
Ddk by Imaginationtech
Ddk by Imaginationtech
Ddk by Imaginationtech
⚠️ Risk & Real-World Impact
Worst Case
Local privilege escalation leading to kernel compromise, system crash, or arbitrary code execution with kernel privileges.
Likely Case
Denial of service through kernel panic or system instability when malicious applications trigger the use-after-free condition.
If Mitigated
Limited impact with proper access controls and isolation preventing untrusted users from accessing GPU driver interfaces.
🎯 Exploit Status
Exploitation requires local access and knowledge of kernel memory layout. Use-after-free vulnerabilities can be challenging to reliably exploit for code execution.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Imagination Technologies advisory for specific patched driver versions
Vendor Advisory: https://www.imaginationtech.com/gpu-driver-vulnerabilities/
Restart Required: Yes
Instructions:
1. Check Imagination Technologies advisory for affected versions. 2. Obtain updated GPU drivers from device manufacturer or Imagination. 3. Install updated drivers following manufacturer instructions. 4. Reboot system to load new kernel modules.
🔧 Temporary Workarounds
Restrict GPU device access
linuxLimit access to GPU device files to trusted users only
chmod 600 /dev/dri/renderD*
chown root:video /dev/dri/renderD*
Disable vulnerable GPU features
linuxDisable specific GPU functionality if not required
echo 0 > /sys/module/gpu_module/parameters/enable_vulnerable_feature
🧯 If You Can't Patch
- Implement strict access controls to prevent untrusted users from accessing GPU interfaces
- Monitor system logs for kernel panic or instability events related to GPU operations
🔍 How to Verify
Check if Vulnerable:
Check GPU driver version against Imagination advisory. Use: lspci -k | grep -A2 -i 'imagination' or modinfo [gpu_driver_module]Check Version:
modinfo [gpu_driver_module] | grep versionVerify Fix Applied:
Verify updated driver version is installed and kernel modules are loaded from patched version📡 Detection & Monitoring
Log Indicators:
- Kernel panic messages
- GPU driver crash logs
- Use-after-free warnings in dmesg
- System instability after GPU operations
Network Indicators:
- None - local vulnerability only
SIEM Query:
source="kernel" AND ("panic" OR "oops" OR "use-after-free") AND ("gpu" OR "imagination")