CVE-2025-38353
📋 TL;DR
This CVE describes a race condition vulnerability in the Linux kernel's Xe graphics driver where the system attempts to acquire an invalid mutex lock during device wedge recovery. This can cause kernel warnings, system instability, or potential denial of service. It affects systems using Intel Xe graphics drivers in the Linux kernel.
💻 Affected Systems
- Linux kernel with Intel Xe graphics driver (drm/xe)
📦 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 →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 or system crash leading to denial of service, potentially requiring physical reboot.
Likely Case
Kernel warning messages in logs and temporary system instability during graphics driver recovery events.
If Mitigated
Minor performance impact during graphics operations with proper driver state management.
🎯 Exploit Status
This appears to be a race condition bug rather than a security vulnerability with direct exploitation paths.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Linux kernel versions containing the fix commits
Vendor Advisory: https://git.kernel.org/stable/c/1e1981b16bb1bbe2fafa57ed439b45cb5b34e32d
Restart Required: Yes
Instructions:
1. Update Linux kernel to version containing the fix commits. 2. Reboot system to load new kernel. 3. Verify Xe driver is functioning correctly.
🔧 Temporary Workarounds
Disable Xe graphics driver
linuxPrevent loading of the vulnerable Xe graphics driver module
echo 'blacklist xe' >> /etc/modprobe.d/blacklist.conf
update-initramfs -u
reboot
🧯 If You Can't Patch
- Monitor system logs for kernel warnings related to Xe driver or mutex lock issues
- Consider using alternative graphics drivers if available for your hardware
🔍 How to Verify
Check if Vulnerable:
Check kernel version and if Xe driver is loaded: 'uname -r' and 'lsmod | grep xe'Check Version:
uname -rVerify Fix Applied:
Check if kernel version includes the fix commits and monitor logs for absence of mutex warnings📡 Detection & Monitoring
Log Indicators:
- Kernel logs containing 'DEBUG_LOCKS_WARN_ON', 'device wedged', or mutex-related warnings from Xe driver
Network Indicators:
- None - this is a local kernel issue
SIEM Query:
source="kernel" AND ("DEBUG_LOCKS_WARN_ON" OR "device wedged" OR "xe_guc_submit_wedge")