CVE-2024-53133

7.8 HIGH

📋 TL;DR

A double-free vulnerability in the AMD display driver component of the Linux kernel could lead to system crashes or potential kernel memory corruption. This affects Linux systems with AMD graphics hardware when display mode changes trigger memory allocation failures. Attackers with local access could potentially exploit this to cause denial of service or achieve privilege escalation.

💻 Affected Systems

Products:
  • Linux kernel with AMD display driver (drm/amd/display)
Versions: Linux kernel versions containing the vulnerable code up to the fix commit bcafdc61529a48f6f06355d78eb41b3aeda5296c
Operating Systems: Linux distributions with AMD GPU support
Default Config Vulnerable: ⚠️ Yes
Notes: Requires AMD graphics hardware and the amdgpu driver. Systems without AMD GPUs or with the driver disabled are not affected.

📦 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 →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Local privilege escalation leading to full system compromise through kernel memory corruption, or persistent denial of service requiring system reboot.

🟠

Likely Case

System crash or kernel panic when display operations fail, requiring reboot to restore functionality.

🟢

If Mitigated

Minor system instability or application crashes limited to display-related functions.

🌐 Internet-Facing: LOW - Requires local access to the system; not directly exploitable over network.
🏢 Internal Only: MEDIUM - Local users or compromised accounts could exploit this to crash systems or potentially escalate privileges.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Exploitation requires triggering specific memory allocation failures during display operations, which may be difficult to reliably achieve.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Linux kernel with commit bcafdc61529a48f6f06355d78eb41b3aeda5296c or later

Vendor Advisory: https://git.kernel.org/stable/c/6825cb07b79ffeb1d90ffaa7a1227462cdca34ae

Restart Required: Yes

Instructions:

1. Update Linux kernel to version containing the fix commit. 2. For distributions: Use package manager (apt/yum/dnf) to update kernel package. 3. Reboot system to load patched kernel.

🔧 Temporary Workarounds

Disable AMD GPU driver

linux

Temporarily disable the amdgpu driver to prevent exploitation

echo 'blacklist amdgpu' >> /etc/modprobe.d/blacklist-amdgpu.conf
update-initramfs -u
reboot

Use basic display modes

linux

Avoid complex display configurations that trigger memory allocation

🧯 If You Can't Patch

  • Restrict local user access to systems with AMD GPUs
  • Implement strict resource limits to prevent memory allocation failures

🔍 How to Verify

Check if Vulnerable:

Check if system has AMD GPU and amdgpu driver loaded: 'lsmod | grep amdgpu' and 'lspci | grep -i amd'

Check Version:

uname -r

Verify Fix Applied:

Check kernel version contains fix commit: 'uname -r' and verify with distribution's security advisory

📡 Detection & Monitoring

Log Indicators:

  • Kernel panic messages
  • AMDGPU driver crash logs in dmesg
  • Double-free warnings in kernel logs

SIEM Query:

source="kernel" AND ("double free" OR "AMDGPU" OR "amdgpu")

🔗 References

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