CVE-2024-46714
📋 TL;DR
This CVE addresses a NULL pointer dereference vulnerability in the AMD display driver component of the Linux kernel. Attackers could potentially cause a kernel panic or system crash by triggering this condition, affecting systems using AMD graphics hardware with the vulnerable driver.
💻 Affected Systems
- Linux kernel with AMD display driver (drm/amd/display)
📦 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 →⚠️ Risk & Real-World Impact
Worst Case
Kernel panic leading to system crash and denial of service, potentially causing data loss or system instability.
Likely Case
System crash or instability when specific display operations are performed with AMD graphics hardware.
If Mitigated
Minor system instability that is quickly recovered from automatic kernel protections.
🎯 Exploit Status
Requires local access and ability to trigger specific display operations. No known public exploits.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Linux kernel with commits 0364f1f17a86d89dc39040beea4f099e60189f1b or later
Vendor Advisory: https://git.kernel.org/stable/c/0364f1f17a86d89dc39040beea4f099e60189f1b
Restart Required: Yes
Instructions:
1. Update Linux kernel to version containing the fix commits. 2. Reboot system to load new kernel. 3. Verify kernel version with 'uname -r'.
🔧 Temporary Workarounds
Disable AMD display hardware acceleration
linuxTemporarily disable AMD display hardware features to avoid triggering vulnerable code path
echo 'blacklist amdgpu' >> /etc/modprobe.d/blacklist.conf
update-initramfs -u
reboot
🧯 If You Can't Patch
- Restrict local user access to systems with AMD graphics hardware
- Monitor system logs for kernel panic events related to display operations
🔍 How to Verify
Check if Vulnerable:
Check kernel version and if AMD graphics hardware is present: 'lspci | grep -i amd' and 'uname -r'
Check Version:
uname -r
Verify Fix Applied:
Verify kernel version includes fix commits: 'uname -r' and check kernel changelog for commit hashes
📡 Detection & Monitoring
Log Indicators:
- Kernel panic messages
- NULL pointer dereference errors in dmesg
- AMD display driver crash logs
Network Indicators:
- None - local vulnerability only
SIEM Query:
source="kernel" AND ("NULL pointer" OR "kernel panic" OR "amdgpu" OR "drm/amd")
🔗 References
- https://git.kernel.org/stable/c/0364f1f17a86d89dc39040beea4f099e60189f1b
- https://git.kernel.org/stable/c/1726914cb17cedab233820d26b86764dc08857b4
- https://git.kernel.org/stable/c/54834585e91cab13e9f82d3a811deb212a4df786
- https://git.kernel.org/stable/c/6d94c05a13fadd80c3e732f14c83b2632ebfaa50
- https://git.kernel.org/stable/c/c083c8be6bdd046049884bec076660d4ec9a19ca
- https://git.kernel.org/stable/c/c4d31653c03b90e51515b1380115d1aedad925dd
- https://git.kernel.org/stable/c/e3a95f29647ae45d1ec9541cd7df64f40bf2120a
- https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html