CVE-2025-37908
📋 TL;DR
A Linux kernel memory management vulnerability where slab object extensions aren't properly cleaned up when memory allocation profiling is disabled. This can cause memory corruption and system crashes. Affects Linux systems with specific kernel configurations.
💻 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, denial of service, or potential privilege escalation if combined with other vulnerabilities.
Likely Case
System instability, crashes, or performance degradation due to memory corruption.
If Mitigated
Minimal impact if systems aren't using memory allocation profiling or have proper monitoring.
🎯 Exploit Status
Requires specific kernel configuration and triggering conditions. Likely requires local access to system.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Patches available in stable kernel branches (commits: 01db0e1a48345aa1937f3bdfc7c7108d03ebcf7e, be8250786ca94952a19ce87f98ad9906448bc9ef, dab2a13059a475b6392550f882276e170fe2fcff)
Vendor Advisory: https://git.kernel.org/stable/c/01db0e1a48345aa1937f3bdfc7c7108d03ebcf7e
Restart Required: Yes
Instructions:
1. Update to patched kernel version from your distribution's repository. 2. Rebuild kernel if using custom kernel. 3. Reboot system to load new kernel.
🔧 Temporary Workarounds
Disable memory allocation profiling
linuxPrevent the vulnerability by ensuring memory allocation profiling is not enabled or disabled at runtime
echo 0 > /sys/kernel/debug/mem_profiling/enable
🧯 If You Can't Patch
- Avoid enabling/disabling memory allocation profiling at runtime
- Monitor system logs for memory corruption warnings and crashes
🔍 How to Verify
Check if Vulnerable:
Check kernel version and if memory allocation profiling is enabled: cat /proc/version && cat /sys/kernel/debug/mem_profiling/enableCheck Version:
uname -rVerify Fix Applied:
Verify kernel version is patched and check system logs for absence of memory corruption errors📡 Detection & Monitoring
Log Indicators:
- Kernel panic messages
- 'Bad page state' errors in dmesg
- Memory corruption warnings
- Cgroup charging errors
Network Indicators:
- None - local vulnerability
SIEM Query:
source="kernel" AND ("Bad page state" OR "page still charged to cgroup" OR memory_corruption)