CVE-2024-58065
📋 TL;DR
This CVE-2024-58065 is a NULL pointer dereference vulnerability in the Linux kernel's clock controller driver for PXA1908 processors. It allows local attackers to cause a kernel panic (denial of service) by triggering the bug. Systems using affected Linux kernel versions with PXA1908 hardware are vulnerable.
💻 Affected Systems
- Linux kernel
📦 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 →⚠️ Risk & Real-World Impact
Worst Case
Kernel panic leading to system crash and denial of service, potentially requiring physical access to restart the system.
Likely Case
Local denial of service through kernel panic, requiring system reboot to recover.
If Mitigated
Minimal impact if proper access controls prevent local users from exploiting the driver bug.
🎯 Exploit Status
Exploitation requires local access to trigger the NULL pointer dereference in the clock driver.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Patches available in stable kernel trees (commits 6628f7f88de5f65f01adef5a63c707cb49d0fddb and e5ca5d7b4d7c29246d957dc45d63610584ae3a54)
Vendor Advisory: https://git.kernel.org/stable/c/6628f7f88de5f65f01adef5a63c707cb49d0fddb
Restart Required: Yes
Instructions:
1. Update Linux kernel to version containing the fix. 2. For embedded systems: Rebuild kernel with patched source or obtain updated firmware from vendor. 3. Reboot system after update.
🔧 Temporary Workarounds
Disable PXA1908 APBC clock driver
linuxRemove or blacklist the vulnerable kernel module if not required for system operation.
echo 'blacklist pxa1908_apbc' >> /etc/modprobe.d/blacklist.conf
rmmod pxa1908_apbc
🧯 If You Can't Patch
- Restrict local user access to prevent exploitation by untrusted users.
- Implement kernel module signing and loading restrictions to prevent driver manipulation.
🔍 How to Verify
Check if Vulnerable:
Check if pxa1908_apbc module is loaded: lsmod | grep pxa1908_apbc. Check kernel version against patched releases.Check Version:
uname -rVerify Fix Applied:
Verify kernel version is updated and module is either not loaded or from patched kernel. Check dmesg for NULL pointer errors.📡 Detection & Monitoring
Log Indicators:
- Kernel panic messages in dmesg/system logs
- NULL pointer dereference errors mentioning pxa1908_apbc
Network Indicators:
- None - local exploitation only
SIEM Query:
source="kernel" AND ("NULL pointer" OR "kernel panic") AND "pxa1908"