CVE-2025-8109
📋 TL;DR
This vulnerability allows non-privileged users to use ptrace system calls to write to GPU read-only memory, potentially bypassing memory protection mechanisms. It affects systems with Imagination Technologies GPU drivers. This could lead to privilege escalation or data corruption.
💻 Affected Systems
- Imagination Technologies GPU drivers
⚠️ Manual Verification Required
This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.
Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).
🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.
- Review the CVE details at NVD
- Check vendor security advisories for your specific version
- Test if the vulnerability is exploitable in your environment
- Consider updating to the latest version as a precaution
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise via privilege escalation to root/kernel level, allowing complete control over the affected system.
Likely Case
Local privilege escalation allowing a standard user to gain elevated privileges and potentially access sensitive data or install malware.
If Mitigated
Limited impact if proper access controls restrict ptrace usage and GPU memory access is properly isolated.
🎯 Exploit Status
Exploitation requires local access and knowledge of GPU memory layout. No public exploit code is currently available.
🛠️ 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. Visit Imagination Technologies advisory page. 2. Download and install the latest GPU driver version. 3. Reboot the system to apply changes.
🔧 Temporary Workarounds
Restrict ptrace usage
linuxLimit ptrace system call access to privileged users only to prevent exploitation.
echo 'kernel.yama.ptrace_scope = 1' >> /etc/sysctl.d/10-ptrace.conf
sysctl -p /etc/sysctl.d/10-ptrace.conf
🧯 If You Can't Patch
- Implement strict user access controls to limit who can execute GPU-intensive applications.
- Monitor system logs for unusual ptrace activity or GPU memory access attempts.
🔍 How to Verify
Check if Vulnerable:
Check if Imagination GPU driver is installed and review version against vendor advisory.Check Version:
Check GPU driver version via system-specific commands (e.g., 'modinfo' for kernel modules or vendor tools).Verify Fix Applied:
Verify GPU driver version matches or exceeds patched version listed in vendor advisory.📡 Detection & Monitoring
Log Indicators:
- Unusual ptrace system calls from non-privileged users
- GPU memory access errors or violations in kernel logs
Network Indicators:
- None - this is a local vulnerability
SIEM Query:
source="kernel" AND (ptrace OR gpu_memory)