CVE-2025-38447
📋 TL;DR
This CVE describes an out-of-bounds memory access vulnerability in the Linux kernel's memory management subsystem. Attackers could potentially exploit this to cause kernel crashes or achieve privilege escalation. All Linux systems using affected kernel versions 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 →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 or potential privilege escalation to kernel-level access
Likely Case
Kernel crash causing system instability or denial of service
If Mitigated
No impact if patched; unpatched systems remain vulnerable to crashes
🎯 Exploit Status
Trigger requires specific memory mapping scenarios; exploitation may be challenging
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Kernel versions containing commit 510fe9c15d07e765d96be9a9dc37e5057c6c09f4 or ddd05742b45b083975a0855ef6ebbf88cf1f532a
Vendor Advisory: https://git.kernel.org/stable/c/510fe9c15d07e765d96be9a9dc37e5057c6c09f4
Restart Required: Yes
Instructions:
1. Update Linux kernel to patched version from your distribution's repositories. 2. Reboot system to load new kernel. 3. Verify kernel version after reboot.
🔧 Temporary Workarounds
No known workarounds
linuxThis is a core kernel memory management vulnerability with no configuration-based mitigations
🧯 If You Can't Patch
- Restrict local user access to minimize attack surface
- Implement strict process isolation and resource limits
🔍 How to Verify
Check if Vulnerable:
Check kernel version and compare against patched versions from your distributionCheck Version:
uname -rVerify Fix Applied:
Verify kernel version includes the fix commit: 'uname -r' and check distribution patch notes📡 Detection & Monitoring
Log Indicators:
- Kernel panic logs
- OOM killer activity
- Unexpected system crashes
Network Indicators:
- None - this is a local vulnerability
SIEM Query:
search for kernel panic or system crash events in system logs