CVE-2024-53086
📋 TL;DR
This CVE describes a locking issue in the Linux kernel's Direct Rendering Manager (DRM) Xe graphics driver. When the xe_sync_in_fence_get function fails during the exec IOCTL, the VM dma-resv lock isn't properly released before returning to user space. This affects systems using Intel Xe graphics with the affected kernel versions.
💻 Affected Systems
- Linux kernel with Xe graphics 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 →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 →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 →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
Potential kernel panic or system crash due to improper lock handling, leading to denial of service.
Likely Case
System instability or crashes when graphics operations fail under specific conditions.
If Mitigated
Minimal impact if systems don't use Xe graphics or have proper monitoring for kernel crashes.
🎯 Exploit Status
Requires local access and ability to trigger specific graphics operations that cause the fence_get failure.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Kernel with commit 7d1a4258e602ffdce529f56686925034c1b3b095 or backported fixes
Vendor Advisory: https://git.kernel.org/stable/c/64a2b6ed4bfd890a0e91955dd8ef8422a3944ed9
Restart Required: Yes
Instructions:
1. Update to latest kernel version from your distribution. 2. Verify the fix commit is included. 3. Reboot the system.
🔧 Temporary Workarounds
Disable Xe graphics driver
linuxRemove or blacklist the Xe graphics driver if not needed
echo 'blacklist xe' >> /etc/modprobe.d/blacklist.conf
update-initramfs -u
reboot
🧯 If You Can't Patch
- Restrict local user access to systems with Xe graphics
- Monitor system logs for kernel crashes or instability related to graphics operations
🔍 How to Verify
Check if Vulnerable:
Check kernel version and if Xe driver is loaded: lsmod | grep xe && uname -rCheck Version:
uname -rVerify Fix Applied:
Verify kernel version includes the fix commit: git log --oneline | grep '7d1a4258e602'📡 Detection & Monitoring
Log Indicators:
- Kernel panic messages
- DRM/Xe driver error logs
- System crash dumps
Network Indicators:
- None - local vulnerability only
SIEM Query:
source="kernel" AND ("panic" OR "oops" OR "drm/xe")