CVE-2024-50282
📋 TL;DR
This CVE describes a buffer overflow vulnerability in the AMD GPU driver for the Linux kernel. An attacker could exploit this to execute arbitrary code or cause a denial of service on systems with AMD graphics hardware. The vulnerability affects Linux systems running vulnerable kernel versions with AMD GPU drivers.
💻 Affected Systems
- Linux kernel with AMD GPU drivers
📦 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 →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
Local privilege escalation to kernel-level code execution, potentially leading to full system compromise.
Likely Case
Kernel panic or system crash causing denial of service.
If Mitigated
No impact if the vulnerable debugfs interface is disabled or access is restricted.
🎯 Exploit Status
Exploitation requires local access and ability to write to debugfs. The vulnerability is in a debug interface that may not be accessible to unprivileged users by default.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Linux kernel with commit f5d873f5825b40d886d03bd2aede91d4cf002434 or later
Vendor Advisory: https://git.kernel.org/stable/c/2faaee36e6e30f9efc7fa6bcb0bdcbe05c23f51f
Restart Required: Yes
Instructions:
1. Update Linux kernel to a patched version from your distribution. 2. For Debian systems, apply security updates from the LTS advisory. 3. Reboot the system to load the new kernel.
🔧 Temporary Workarounds
Disable debugfs access
linuxRestrict access to the debugfs interface to prevent exploitation
mount -o remount,nodev,noexec,nosuid /sys/kernel/debug
chmod 700 /sys/kernel/debug/dri
Remove debugfs mount
linuxUnmount debugfs to completely disable the interface
umount /sys/kernel/debug
🧯 If You Can't Patch
- Restrict access to /sys/kernel/debug/dri to root only using filesystem permissions
- Implement strict access controls and monitoring for debugfs interface usage
🔍 How to Verify
Check if Vulnerable:
Check if the system has AMD GPU drivers loaded and debugfs accessible: lsmod | grep amdgpu && ls -la /sys/kernel/debug/driCheck Version:
uname -rVerify Fix Applied:
Check kernel version against patched versions from vendor advisories: uname -r📡 Detection & Monitoring
Log Indicators:
- Kernel oops messages
- System crashes or reboots
- Unusual access to /sys/kernel/debug/dri in audit logs
Network Indicators:
- No network indicators - this is a local vulnerability
SIEM Query:
source="kernel" AND ("Oops" OR "general protection fault") OR source="audit" AND path="/sys/kernel/debug/dri/*" AND success="yes"🔗 References
- https://git.kernel.org/stable/c/2faaee36e6e30f9efc7fa6bcb0bdcbe05c23f51f
- https://git.kernel.org/stable/c/4d75b9468021c73108b4439794d69e892b1d24e3
- https://git.kernel.org/stable/c/673bdb4200c092692f83b5f7ba3df57021d52d29
- https://git.kernel.org/stable/c/8906728f2fbd6504cb488f4afdd66af28f330a7a
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
