Kernel Panic Vulnerability in Linux Package - CVE-2025-22033
Summary
CVE-2025-22033: In the Linux kernel, the following vulnerability has been resolved: arm64: Don't call NULL in do_compat_alignment_fixup() do_alignment_t32_to_handler() only fixes up alignment faults for specific instructions; it returns... Affects linux versions < 6.1.135-1. Fixed in 6.1.135-1. How to fix ↓
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Background
The Linux kernel is the core component of the Linux operating system, responsible for managing hardware resources and providing essential services to applications. It is widely used across various platforms, including servers, desktops, and embedded systems. This vulnerability affects the arm64 architecture, specifically in the handling of alignment faults, which can lead to system instability and crashes.
Vulnerability Detail
CVE-2025-22033 is a vulnerability in the Linux kernel that arises from improper handling of alignment faults in the do_compat_alignment_fixup() function. When certain instructions cause alignment faults, the function may return NULL, leading to a kernel panic due to a NULL pointer dereference. This can result in a system crash, rendering the affected system inoperable. The vulnerability is particularly critical as it can be exploited without user intervention, potentially affecting system availability and reliability.
How To Fix
Minimum fixed version
6.1.135-1
This is the first release that contains the fix.
sudo apt-get install --only-upgrade linuxTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
Currently, there are no specific workarounds provided for this vulnerability. It is advisable to apply the patch as soon as it becomes available to mitigate the risk of system crashes.
Conclusion
CVE-2025-22033 is a critical vulnerability in the Linux kernel that can lead to system crashes due to improper handling of alignment faults. Users are urged to update their systems to the latest patched version to ensure stability and security. Monitoring tools like Vulert can assist in identifying vulnerabilities in your software without requiring extensive setup.
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FAQ
CVE-2025-22033 is a vulnerability in the Linux kernel that can cause a kernel panic due to improper handling of alignment faults.
This vulnerability can lead to system crashes, making the affected system inoperable and potentially causing data loss.
You can check if your application is affected by this vulnerability using the Vulert playground at Vulert Scanner without any signup.
The best way to protect your system is to update the Linux package to the latest patched version as soon as it is available.
While there are no specific workarounds, it is crucial to monitor for updates and apply them as soon as possible to mitigate risks.
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