CVE-2024-53193
📋 TL;DR
A memory corruption vulnerability in the Linux kernel's Loongson2 clock driver allows writing beyond allocated heap memory boundaries. This can lead to kernel memory corruption, potentially causing system crashes or arbitrary code execution. Systems using affected Linux kernel versions with Loongson2 hardware support are vulnerable.
💻 Affected Systems
- Linux kernel
📦 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 memory corruption leading to arbitrary code execution with kernel privileges, resulting in complete system compromise.
Likely Case
System instability, kernel panics, or denial of service due to memory corruption affecting the spinlock and adjacent kernel structures.
If Mitigated
Limited impact if system doesn't use Loongson2 hardware or has proper memory protection mechanisms enabled.
🎯 Exploit Status
Requires local access and ability to trigger the vulnerable code path. Exploitation depends on specific memory layout and hardware configuration.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Fixed in kernel commits: 145de18065b9, 6e4bf018bb04, 76918202615f
Vendor Advisory: https://git.kernel.org/stable/c/145de18065b9840687d9b4e63746238c1da25d22
Restart Required: Yes
Instructions:
1. Update Linux kernel to version containing the fix commits. 2. Rebuild kernel if compiling from source. 3. Reboot system to load patched kernel.
🔧 Temporary Workarounds
Disable Loongson2 clock driver
linuxRemove or disable the vulnerable kernel module if not needed
modprobe -r clk-loongson2
echo 'blacklist clk-loongson2' > /etc/modprobe.d/disable-loongson2.conf
🧯 If You Can't Patch
- Ensure systems don't use Loongson2 hardware or disable the driver via kernel command line
- Implement strict access controls to prevent local privilege escalation attempts
🔍 How to Verify
Check if Vulnerable:
Check if kernel has Loongson2 clock driver loaded: lsmod | grep loongson2Check Version:
uname -rVerify Fix Applied:
Check kernel version includes fix commits or verify driver is not loaded📡 Detection & Monitoring
Log Indicators:
- Kernel panic messages
- Oops messages related to memory corruption
- System crashes
Network Indicators:
- None - local exploit only
SIEM Query:
Search for kernel panic or oops messages in system logs