CVE-2025-39719
📋 TL;DR
This CVE describes an out-of-bounds array access vulnerability in the Linux kernel's BNO055 IMU driver. An attacker could potentially exploit this to cause kernel memory corruption, leading to system crashes or privilege escalation. This affects Linux systems using the BNO055 inertial measurement unit driver.
💻 Affected Systems
- Linux kernel with BNO055 IMU driver enabled
📦 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 →⚠️ Risk & Real-World Impact
Worst Case
Kernel panic, system crash, or potential privilege escalation leading to full system compromise.
Likely Case
System instability, kernel crashes, or denial of service conditions.
If Mitigated
Minimal impact if proper kernel hardening and memory protection mechanisms are enabled.
🎯 Exploit Status
Exploitation requires specific hardware interaction and kernel memory manipulation knowledge.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Linux kernel with commits 399b883ec828e436f1a721bf8551b4da8727e65b or later
Vendor Advisory: https://git.kernel.org/stable/c/399b883ec828e436f1a721bf8551b4da8727e65b
Restart Required: Yes
Instructions:
1. Update Linux kernel to version containing the fix commits. 2. For distributions: Use package manager (apt/yum/dnf) to update kernel. 3. Reboot system to load new kernel.
🔧 Temporary Workarounds
Disable BNO055 driver
linuxRemove or disable the vulnerable kernel module if BNO055 hardware is not needed
echo 'blacklist bno055' >> /etc/modprobe.d/blacklist.conf
rmmod bno055
🧯 If You Can't Patch
- Restrict physical and local access to systems with BNO055 hardware
- Implement strict application sandboxing and privilege separation
🔍 How to Verify
Check if Vulnerable:
Check if BNO055 module is loaded: lsmod | grep bno055 AND check kernel version against patched versionsCheck Version:
uname -rVerify Fix Applied:
Verify kernel version includes fix commits and BNO055 module loads without errors📡 Detection & Monitoring
Log Indicators:
- Kernel oops messages
- System crash/panic logs
- dmesg errors related to bno055
Network Indicators:
- None - local vulnerability only
SIEM Query:
source="kernel" AND ("bno055" OR "OOB" OR "out of bounds")🔗 References
- https://git.kernel.org/stable/c/399b883ec828e436f1a721bf8551b4da8727e65b
- https://git.kernel.org/stable/c/4808ca3aa30ae857454d0b41d2d0bf161a312b45
- https://git.kernel.org/stable/c/50e823a23816b792daf6e8405f8d6045952bb90e
- https://git.kernel.org/stable/c/5c2b601922c064f7be70ae8621277f18d1ffec59
- https://git.kernel.org/stable/c/a0691ab6334f1769acc64ea9e319414a682ff45d
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
