CVE-2024-57906
📋 TL;DR
This CVE-2024-57906 is an information leak vulnerability in the Linux kernel's TI ADS8688 ADC driver. When triggered buffer data is sent to userspace, uninitialized memory from inactive channels can be exposed, potentially leaking sensitive kernel memory contents. This affects systems using the ti-ads8688 driver with triggered buffer functionality enabled.
💻 Affected Systems
- Linux kernel with ti-ads8688 driver
📦 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 →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 memory disclosure could reveal sensitive information including cryptographic keys, process memory, or other privileged data that could facilitate further attacks or system compromise.
Likely Case
Limited information leak of kernel stack memory, potentially exposing non-sensitive data or facilitating information gathering for attackers.
If Mitigated
With proper access controls and kernel hardening, impact is limited to information disclosure without direct privilege escalation.
🎯 Exploit Status
Requires local access and ability to trigger buffer reads. Exploitation depends on specific hardware configuration and driver usage.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Linux kernel with commits 1c80a0985a9a14f33dbf63cd703ca010f094f878 or later
Vendor Advisory: https://git.kernel.org/stable/c/1c80a0985a9a14f33dbf63cd703ca010f094f878
Restart Required: Yes
Instructions:
1. Update Linux kernel to patched version from your distribution. 2. Reboot system to load new kernel. 3. Verify driver is loaded with patched kernel.
🔧 Temporary Workarounds
Disable ti-ads8688 driver
allPrevent loading of vulnerable driver if not needed
echo 'blacklist ti-ads8688' > /etc/modprobe.d/blacklist-ti-ads8688.conf
rmmod ti-ads8688
Disable triggered buffer functionality
allPrevent use of vulnerable buffer trigger mechanism
🧯 If You Can't Patch
- Restrict local user access to systems using ti-ads8688 hardware
- Implement strict access controls and monitoring for systems with vulnerable driver
🔍 How to Verify
Check if Vulnerable:
Check if ti-ads8688 module is loaded: lsmod | grep ti_ads8688Check Version:
uname -rVerify Fix Applied:
Check kernel version is patched: uname -r and verify against distribution security advisories📡 Detection & Monitoring
Log Indicators:
- Kernel logs showing ti-ads8688 driver activity
- Unusual buffer read operations from userspace
Network Indicators:
- None - local vulnerability only
SIEM Query:
process.name contains 'cat' AND file.path contains '/sys/bus/iio/devices/' AND file.path contains 'buffer'🔗 References
- https://git.kernel.org/stable/c/1c80a0985a9a14f33dbf63cd703ca010f094f878
- https://git.kernel.org/stable/c/2a7377ccfd940cd6e9201756aff1e7852c266e69
- https://git.kernel.org/stable/c/3bf8d1e87939b8a19c9b738564fddf5b73322f2f
- https://git.kernel.org/stable/c/455df95eb8f24a37abc549d6738fc8ee07eb623b
- https://git.kernel.org/stable/c/485570ed82b7a6bb109fa1d0a79998e21f7f4c73
- https://git.kernel.org/stable/c/aae96738006840533cf147ffd5f41830987f21c5
- https://git.kernel.org/stable/c/ebe2672bc42a0dfe31bb539f8ce79d024aa7e46d
- https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
- https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
