CVE-2024-27074 – This CVE describes a memory leak vulnerability ... (How to Fix)

Q: What is the severity of CVE-2024-27074?

CVE-2024-27074 has a CVSS score of 5.5 (MEDIUM). This CVE describes a memory leak vulnerability in the Linux kernel's go7007 media driver. When the go7007_load_encoder function is called, it allocates memory for firmware loading but fails to free it before the parent structure is deallocated, causing a memory leak. This affects systems using the go7007 driver for video capture devices.

📋 TL;DR

This CVE describes a memory leak vulnerability in the Linux kernel's go7007 media driver. When the go7007_load_encoder function is called, it allocates memory for firmware loading but fails to free it before the parent structure is deallocated, causing a memory leak. This affects systems using the go7007 driver for video capture devices.

💻 Affected Systems

Products:

Linux kernel with go7007 driver

Versions: Kernel versions before the fix commits (specific versions vary by distribution)

Operating Systems: Linux distributions using affected kernel versions

Default Config Vulnerable: ✅ No

Notes: Only vulnerable if go7007 driver is loaded and used with compatible hardware (video capture devices).

📦 What is this software?

Debian Linux by Debian

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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...

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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

Sustained exploitation could lead to kernel memory exhaustion, causing system instability, crashes, or denial of service.

🟠

Likely Case

Gradual memory consumption over time leading to performance degradation or system instability requiring reboots.

🟢

If Mitigated

Minimal impact with proper monitoring and restart policies in place.

🌐 Internet-Facing: LOW - Requires local access or specific hardware to trigger the vulnerable code path.

🏢 Internal Only: MEDIUM - Systems with go7007 hardware could experience stability issues affecting services.

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: NO

Unauthenticated Exploit: ✅ No

Complexity: HIGH

Exploitation requires local access and specific hardware/driver usage patterns to trigger the memory leak repeatedly.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Kernel versions containing the fix commits (e.g., stable kernel releases after the patches)

Vendor Advisory: https://git.kernel.org/stable/c/291cda0b805fc0d6e90d201710311630c8667159

Restart Required: Yes

Instructions:

1. Update Linux kernel to a version containing the fix commits. 2. Reboot system to load new kernel. 3. Verify go7007 driver is not leaking memory.

🔧 Temporary Workarounds

Disable go7007 driver

linux

Prevent loading of the vulnerable driver if not needed

echo 'blacklist go7007' > /etc/modprobe.d/blacklist-go7007.conf
rmmod go7007

🧯 If You Can't Patch

Monitor system memory usage and restart services/systems showing abnormal memory growth
Avoid using go7007-compatible hardware until patched

🔍 How to Verify

Check if Vulnerable:

Check kernel version and if go7007 module is loaded: 'lsmod | grep go7007' and 'uname -r'

Check Version:

uname -r

Verify Fix Applied:

Verify kernel version is after fix commits and monitor memory usage during go7007 device operation

📡 Detection & Monitoring

Log Indicators:

Kernel oom-killer messages
System logs showing memory pressure warnings

Network Indicators:

None - local vulnerability only

SIEM Query:

source="kernel" AND ("Out of memory" OR "oom-killer" OR "memory allocation failure")

📊 Metadata

CVE ID: CVE-2024-27074

CVSS v3 Score: 5.5 (MEDIUM)

CVSS Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE: CWE-401

Published: May 1, 2024

Last Updated: December 23, 2024

🔗 References

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🔗 Related Vulnerabilities

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