CVE-2024-53080

5.5 MEDIUM

📋 TL;DR

This CVE describes a race condition vulnerability in the Linux kernel's Panthor GPU driver where XArray entries for VM objects are accessed without proper locking. This could allow local attackers to cause use-after-free conditions or memory corruption. Only systems using the Panthor driver are affected.

💻 Affected Systems

Products:
  • Linux kernel with Panthor GPU driver
Versions: Linux kernel versions with Panthor driver before the fix commits
Operating Systems: Linux distributions with affected kernel versions
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects systems using the Panthor GPU driver, which is relatively new and not widely deployed.

📦 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 →

⚠️ Risk & Real-World Impact

🔴

Worst Case

Local privilege escalation to kernel-level code execution, potentially leading to full system compromise.

🟠

Likely Case

Kernel panic or system crash causing denial of service.

🟢

If Mitigated

No impact if proper kernel hardening and privilege separation are in place.

🌐 Internet-Facing: LOW - This is a local vulnerability requiring local access.
🏢 Internal Only: MEDIUM - Could be exploited by malicious local users or through lateral movement.

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Requires local access and race condition timing to exploit successfully.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Linux kernel with commits 3342f066a8e1020a6f7d1fbd6b23bfdeda473eb5 and 444fa5b100e5c90550d6bccfe4476efb0391b3ca

Vendor Advisory: https://git.kernel.org/stable/c/3342f066a8e1020a6f7d1fbd6b23bfdeda473eb5

Restart Required: Yes

Instructions:

1. Update Linux kernel to version containing the fix commits. 2. Reboot system to load new kernel. 3. Verify kernel version after reboot.

🔧 Temporary Workarounds

Disable Panthor driver

linux

Remove or blacklist the Panthor GPU driver if not needed

echo 'blacklist panthor' >> /etc/modprobe.d/blacklist.conf
update-initramfs -u
reboot

🧯 If You Can't Patch

  • Restrict local user access to systems using Panthor driver
  • Implement strict privilege separation and limit sudo/root access

🔍 How to Verify

Check if Vulnerable:

Check if Panthor driver is loaded: lsmod | grep panthor AND check kernel version against patched versions

Check Version:

uname -r

Verify Fix Applied:

Verify kernel version includes fix commits and Panthor driver loads without errors

📡 Detection & Monitoring

Log Indicators:

  • Kernel oops messages
  • System crashes/panics
  • dmesg errors related to panthor or XArray

Network Indicators:

  • None - local vulnerability only

SIEM Query:

Search for kernel panic events or panthor driver errors in system logs

🔗 References

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