CVE-2024-57876 – This is a race condition vulnerability in the L... (How to Fix)

Q: What is the severity of CVE-2024-57876?

CVE-2024-57876 has a CVSS score of 7.0 (HIGH). This is a race condition vulnerability in the Linux kernel's DisplayPort Multi-Stream Transport (DP-MST) subsystem. When the MST topology is removed during message reception, it can lead to memory corruption. This affects Linux systems with DP-MST capable hardware and the vulnerable kernel versions.

📋 TL;DR

This is a race condition vulnerability in the Linux kernel's DisplayPort Multi-Stream Transport (DP-MST) subsystem. When the MST topology is removed during message reception, it can lead to memory corruption. This affects Linux systems with DP-MST capable hardware and the vulnerable kernel versions.

💻 Affected Systems

Products:

Linux kernel

Versions: Specific vulnerable versions not explicitly stated in CVE, but patches available for stable branches.

Operating Systems: Linux distributions using affected kernel versions

Default Config Vulnerable: ⚠️ Yes

Notes: Requires DP-MST capable hardware and the drm/dp_mst subsystem to be active.

📦 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 memory corruption leading to system crash, denial of service, or potential privilege escalation.

🟠

Likely Case

System instability, kernel panic, or denial of service affecting display functionality.

🟢

If Mitigated

Minimal impact if systems are patched or don't use DP-MST functionality.

🌐 Internet-Facing: LOW - Requires local access or specific hardware interaction.

🏢 Internal Only: MEDIUM - Could affect workstations/servers with DP-MST hardware.

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: UNKNOWN

Unauthenticated Exploit: ✅ No

Complexity: MEDIUM

Requires race condition timing and DP-MST hardware interaction.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Patches available in stable kernel branches (commits: 94b33b2d7640e807869451384eb88321dd0ffbd4, a6fa67d26de385c3c7a23c1e109a0e23bfda4ec7, be826b4451fd187a7c0b04be4f8243d5df6e0450, d834d20d2e86c52ed5cab41763fa61e6071680ef)

Vendor Advisory: https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html

Restart Required: Yes

Instructions:

1. Update Linux kernel to patched version from your distribution's repositories. 2. Reboot system to load new kernel.

🔧 Temporary Workarounds

Disable DP-MST functionality

Linux

Disable DisplayPort Multi-Stream Transport if not required

echo 'blacklist drm_dp_mst_helper' > /etc/modprobe.d/disable-dp-mst.conf
update-initramfs -u

🧯 If You Can't Patch

Restrict physical access to systems with DP-MST hardware
Monitor for kernel panics or system instability related to display subsystem

🔍 How to Verify

Check if Vulnerable:

Check kernel version and if drm/dp_mst module is loaded: lsmod | grep drm_dp_mst

Check Version:

uname -r

Verify Fix Applied:

Verify kernel version is updated and check for presence of patched commits in kernel source

📡 Detection & Monitoring

Log Indicators:

Kernel panic messages
OOPs messages related to drm/dp_mst
System crashes during display operations

Network Indicators:

Not applicable - local vulnerability

SIEM Query:

source="kernel" AND ("drm_dp_mst" OR "OOPs" OR "kernel panic")

📊 Metadata

CVE ID: CVE-2024-57876

CVSS v3 Score: 7.0 (HIGH)

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

CWE: CWE-362

EPSS Score: 0.03% exploit probability (9.2th percentile)

Published: January 11, 2025

Last Updated: November 3, 2025

🔗 References

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🔗 Related Vulnerabilities

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