CVE-2024-27075
📋 TL;DR
This CVE addresses a stack overflow vulnerability in the Linux kernel's DVB frontend driver for STV0367 chips. The vulnerability occurs when clang compiler warnings reveal excessive stack usage in the stv0367ter_set_frontend function, potentially leading to kernel crashes or instability. Systems using Linux kernels with the affected media driver are vulnerable.
💻 Affected Systems
- Linux kernel with media subsystem
📦 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 →⚠️ Risk & Real-World Impact
Worst Case
Kernel panic or system crash due to stack overflow, potentially causing denial of service or system instability.
Likely Case
System instability or crashes when using DVB-T/C frontend hardware with STV0367 chips, particularly with clang-compiled kernels.
If Mitigated
Minor performance impact from the noinline_for_stack workaround, but stable system operation.
🎯 Exploit Status
This appears to be a stability/compiler warning issue rather than a traditional security exploit. Requires specific hardware and kernel configuration.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Linux kernel versions with commits 107052a8cfeff3a97326277192b4f052e4860a8a and related fixes
Vendor Advisory: https://git.kernel.org/stable/c/107052a8cfeff3a97326277192b4f052e4860a8a
Restart Required: Yes
Instructions:
1. Update Linux kernel to version containing the fix commits. 2. Recompile kernel if using custom build. 3. Reboot system to load new kernel.
🔧 Temporary Workarounds
Disable clang stack warnings
linuxTemporarily disable the -Wframe-larger-than warning in clang builds
Add -Wno-frame-larger-than to CFLAGS in kernel build configuration
Disable STV0367 driver
linuxRemove or blacklist the vulnerable driver module
echo 'blacklist stv0367' >> /etc/modprobe.d/blacklist.conf
rmmod stv0367
🧯 If You Can't Patch
- Disable DVB hardware using STV0367 chips
- Use GCC instead of clang for kernel compilation
🔍 How to Verify
Check if Vulnerable:
Check kernel version and if stv0367 module is loaded: lsmod | grep stv0367Check Version:
uname -rVerify Fix Applied:
Verify kernel version includes fix commits and stv0367 module loads without errors📡 Detection & Monitoring
Log Indicators:
- Kernel panic messages
- Stack overflow warnings in dmesg
- Driver load failures
Network Indicators:
- None - this is a local driver issue
SIEM Query:
Search for kernel panic events or driver failure messages in system logs🔗 References
- https://git.kernel.org/stable/c/107052a8cfeff3a97326277192b4f052e4860a8a
- https://git.kernel.org/stable/c/7a4cf27d1f0538f779bf31b8c99eda394e277119
- https://git.kernel.org/stable/c/8fad9c5bb00d3a9508d18bbfe832e33a47377730
- https://git.kernel.org/stable/c/c073c8cede5abd3836e83d70d72606d11d0759d4
- https://git.kernel.org/stable/c/d20b64f156de5d10410963fe238d82a4e7e97a2f
- https://git.kernel.org/stable/c/d6b4895197ab5a47cb81c6852d49320b05052960
- https://git.kernel.org/stable/c/ed514ecf4f29c80a2f09ae3c877059b401efe893
- https://git.kernel.org/stable/c/fa8b472952ef46eb632825051078c21ce0cafe55
- https://git.kernel.org/stable/c/fb07104a02e87c06c39914d13ed67fd8f839ca82
- https://git.kernel.org/stable/c/107052a8cfeff3a97326277192b4f052e4860a8a
- https://git.kernel.org/stable/c/7a4cf27d1f0538f779bf31b8c99eda394e277119
- https://git.kernel.org/stable/c/8fad9c5bb00d3a9508d18bbfe832e33a47377730
- https://git.kernel.org/stable/c/c073c8cede5abd3836e83d70d72606d11d0759d4
- https://git.kernel.org/stable/c/d20b64f156de5d10410963fe238d82a4e7e97a2f
- https://git.kernel.org/stable/c/d6b4895197ab5a47cb81c6852d49320b05052960
- https://git.kernel.org/stable/c/ed514ecf4f29c80a2f09ae3c877059b401efe893
- https://git.kernel.org/stable/c/fa8b472952ef46eb632825051078c21ce0cafe55
- https://git.kernel.org/stable/c/fb07104a02e87c06c39914d13ed67fd8f839ca82
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
