CVE-2024-58034 – This CVE describes a use-after-free vulnerabili... (How to Fix)

Q: What is the severity of CVE-2024-58034?

CVE-2024-58034 has a CVSS score of 7.8 (HIGH). This CVE describes a use-after-free vulnerability in the Linux kernel's Tegra20 EMC driver. The bug occurs when the driver incorrectly releases device node references while they're still in use, potentially leading to kernel memory corruption. This affects systems using NVIDIA Tegra20 processors with the affected Linux kernel versions.

📋 TL;DR

This CVE describes a use-after-free vulnerability in the Linux kernel's Tegra20 EMC driver. The bug occurs when the driver incorrectly releases device node references while they're still in use, potentially leading to kernel memory corruption. This affects systems using NVIDIA Tegra20 processors with the affected Linux kernel versions.

💻 Affected Systems

Products:

Linux kernel with Tegra20 EMC driver

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

Operating Systems: Linux distributions with affected kernel versions

Default Config Vulnerable: ⚠️ Yes

Notes: Only affects systems with NVIDIA Tegra20 processors using the tegra20-emc driver. The vulnerability requires the 'nvidia,use-ram-code' property to be present in device tree.

📦 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 →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Kernel panic, system crash, or potential local privilege escalation to root if an attacker can trigger the use-after-free condition and execute arbitrary code.

🟠

Likely Case

System instability, crashes, or denial of service on affected Tegra20-based devices when the EMC driver is actively managing memory timings.

🟢

If Mitigated

Minimal impact if the vulnerable code path isn't triggered during normal operation or if systems don't use the affected EMC configuration.

🌐 Internet-Facing: LOW - This is a local kernel driver vulnerability requiring local access to trigger.

🏢 Internal Only: MEDIUM - Could be exploited by malicious local users or through other local attack vectors on affected systems.

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: UNKNOWN

Unauthenticated Exploit: ✅ No

Complexity: MEDIUM

Exploitation requires local access and knowledge of kernel memory layout. The bug was found through static analysis tools.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Linux kernel with commits 3b02273446e23961d910b50cc12528faec649fb2 or later

Vendor Advisory: https://git.kernel.org/stable/c/3b02273446e23961d910b50cc12528faec649fb2

Restart Required: No

Instructions:

1. Update to a Linux kernel version containing the fix commits. 2. For embedded systems: Rebuild kernel with patched source. 3. For distributions: Apply security updates from your vendor. 4. No kernel module reload required as this is built into the kernel.

🔧 Temporary Workarounds

Disable EMC driver if not needed

all

If the Tegra20 EMC memory controller functionality is not required, the driver can be disabled at kernel build time.

CONFIG_TEGRA20_EMC=n in kernel configuration

🧯 If You Can't Patch

Restrict local user access to systems with Tegra20 processors
Implement strict privilege separation to limit potential damage from local users

🔍 How to Verify

Check if Vulnerable:

Check kernel version and if Tegra20 EMC driver is loaded: 'uname -r' and 'lsmod | grep tegra20_emc'

Check Version:

uname -r

Verify Fix Applied:

Verify kernel version includes fix commits or check with 'modinfo tegra20_emc' for version information

📡 Detection & Monitoring

Log Indicators:

Kernel oops messages
System crashes
Unexpected reboots on Tegra20 systems

Network Indicators:

None - this is a local vulnerability

SIEM Query:

Search for: 'kernel: BUG:', 'kernel: Oops:', or 'kernel: general protection fault' on Tegra20 systems

📊 Metadata

CVE ID: CVE-2024-58034

CVSS v3 Score: 7.8 (HIGH)

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

CWE: CWE-416

EPSS Score: 0.03% exploit probability (8.6th percentile)

Published: February 27, 2025

Last Updated: November 3, 2025

🔗 References

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