CVE-2024-21472
📋 TL;DR
This vulnerability involves memory corruption in the kernel when handling GPU operations, allowing attackers to potentially execute arbitrary code with kernel privileges. It affects systems using Qualcomm GPUs, particularly mobile devices and embedded systems. Exploitation could lead to complete system compromise.
💻 Affected Systems
- Qualcomm Adreno GPU devices
- Snapdragon-powered devices
📦 What is this software?
Snapdragon 680 4g Mobile Firmware by Qualcomm
Snapdragon 685 4g Mobile Firmware by Qualcomm
Snapdragon 8 Gen 1 Mobile Firmware by Qualcomm
View all CVEs affecting Snapdragon 8 Gen 1 Mobile Firmware →
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with kernel-level code execution, allowing attackers to install persistent malware, steal all data, or brick the device.
Likely Case
Local privilege escalation from user to kernel mode, enabling attackers to bypass security controls and gain elevated access.
If Mitigated
Limited impact with proper kernel hardening, SELinux/AppArmor policies, and restricted GPU access.
🎯 Exploit Status
Requires local access and ability to trigger GPU operations; kernel exploitation adds complexity.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Qualcomm security bulletin for specific chipset fixes.
Vendor Advisory: https://docs.qualcomm.com/product/publicresources/securitybulletin/april-2024-bulletin.html
Restart Required: Yes
Instructions:
1. Check Qualcomm advisory for affected chipset. 2. Obtain updated GPU drivers from device manufacturer. 3. Apply firmware/OS update containing patched kernel. 4. Reboot device.
🔧 Temporary Workarounds
Restrict GPU access
linuxLimit GPU operations to trusted applications via SELinux/AppArmor policies.
setenforce 1
Configure appropriate SELinux/AppArmor domains for GPU access
🧯 If You Can't Patch
- Isolate affected devices from critical networks and sensitive data.
- Implement application allowlisting to prevent untrusted apps from accessing GPU functions.
🔍 How to Verify
Check if Vulnerable:
Check device chipset and kernel version against Qualcomm advisory; use 'cat /proc/cpuinfo' or device settings.Check Version:
uname -r (kernel) or check device firmware version in settingsVerify Fix Applied:
Verify kernel/driver version matches patched version in advisory; check for April 2024 security updates.📡 Detection & Monitoring
Log Indicators:
- Kernel panic logs
- GPU driver crash messages in dmesg
- Unexpected privilege escalation attempts
Network Indicators:
- None - local exploitation only
SIEM Query:
Search for kernel module crashes or privilege escalation events in system logs.