CVE-2024-38560 – This CVE describes a buffer overflow vulnerabil... (How to Fix)

Q: What is the severity of CVE-2024-38560?

CVE-2024-38560 has a CVSS score of 7.1 (HIGH). This CVE describes a buffer overflow vulnerability in the Linux kernel's bfa SCSI driver. An attacker could exploit this to read kernel memory beyond allocated bounds, potentially leaking sensitive information or causing system instability. Systems using the bfa driver for Brocade Fibre Channel adapters are affected.

📋 TL;DR

This CVE describes a buffer overflow vulnerability in the Linux kernel's bfa SCSI driver. An attacker could exploit this to read kernel memory beyond allocated bounds, potentially leaking sensitive information or causing system instability. Systems using the bfa driver for Brocade Fibre Channel adapters are affected.

💻 Affected Systems

Products:

Linux kernel with bfa SCSI driver

Versions: Kernel versions before the fix commits

Operating Systems: Linux distributions using vulnerable kernel versions

Default Config Vulnerable: ⚠️ Yes

Notes: Only affects systems with Brocade Fibre Channel adapters using the bfa 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 →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Kernel memory disclosure leading to privilege escalation or system crash

🟠

Likely Case

Information disclosure or denial of service through kernel panic

🟢

If Mitigated

Minimal impact with proper access controls limiting userspace interaction

🌐 Internet-Facing: LOW - Requires local access to exploit

🏢 Internal Only: MEDIUM - Local users could exploit, but requires specific hardware/driver

🎯 Exploit Status

Public PoC: ✅ No

Weaponized: UNKNOWN

Unauthenticated Exploit: ✅ No

Complexity: MEDIUM

Requires local access and knowledge of vulnerable driver usage

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Kernel versions containing commits 00b425ff0891283207d7bad607a2412225274d7a or later

Vendor Advisory: https://git.kernel.org/stable/c/00b425ff0891283207d7bad607a2412225274d7a

Restart Required: Yes

Instructions:

1. Update Linux kernel to patched version. 2. Rebuild kernel if compiling from source. 3. Reboot system to load new kernel.

🔧 Temporary Workarounds

Disable bfa module

linux

Prevent loading of vulnerable bfa driver module

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

🧯 If You Can't Patch

Restrict local user access to systems with Brocade adapters
Implement strict access controls and monitoring for systems using bfa driver

🔍 How to Verify

Check if Vulnerable:

Check if bfa module is loaded: lsmod | grep bfa

Check Version:

uname -r

Verify Fix Applied:

Check kernel version includes fix commits or is newer than vulnerable versions

📡 Detection & Monitoring

Log Indicators:

Kernel oops messages
System crashes related to SCSI/bfa

Network Indicators:

None - local exploit only

SIEM Query:

Search for kernel panic or oops events with bfa module references

📊 Metadata

CVE ID: CVE-2024-38560

CVSS v3 Score: 7.1 (HIGH)

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

CWE: CWE-125

Published: June 19, 2024

Last Updated: November 4, 2025

🔗 References

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🔗 Related Vulnerabilities

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