ARM: footbridge: fix PCI interrupt mapping in Kernel
Summary
GSD-2021-1000039: ARM: footbridge: fix PCI interrupt mapping. Affects Kernel versions >= 30fdfb929e82450bbf3d0e0aba56efbc29b52b52, < 871b569a3e67f570df9f5ba195444dc7c621293b. No fix is published. How to fix ↓
Check if this vulnerability affects your application
Upload a manifest or SBOM and we'll show whether you're affected, plus every other risky package in the same scan.
No signup required · Results in about 60 seconds
Background
The Kernel is a crucial component of the Linux operating system that provides core functionalities and acts as a bridge between hardware and software. It manages system resources, including memory, processes, and device drivers. The ARM architecture is widely used in embedded systems and mobile devices. The footbridge is a specific ARM platform that includes a PCI bus for connecting peripheral devices. However, a vulnerability has been identified in the footbridge implementation that affects the mapping of PCI interrupts.
Vulnerability Detail
The vulnerability in the footbridge implementation of the Kernel impacts the mapping of PCI interrupts. This issue can potentially lead to incorrect interrupt handling and cause system instability or crashes. Attackers may exploit this vulnerability to disrupt the normal operation of the system or gain unauthorized access. The vulnerability was introduced in version v4.13 of the Kernel and has been fixed in version v5.4.114.
How To Fix
No fixed version is published for this vulnerability.
Tip — Not sure whether your app is affected? Vulert can check the versions your app actually runs. Scan free →
Conclusion
The vulnerability in the footbridge implementation of the Kernel, affecting the mapping of PCI interrupts, has been identified and fixed in version v5.4.114. Users are advised to update their Kernel to this version or later to ensure proper handling of PCI interrupts and mitigate the risk of system instability or unauthorized access. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The vulnerability can result in incorrect PCI interrupt mapping, leading to system instability or crashes. It may also be exploited by attackers to disrupt system operation or gain unauthorized access.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your package-lock.json file to the playground, and it will analyze and alert you in real-time if the vulnerability is present.
No specific workaround has been provided for this vulnerability. It is recommended to update the Kernel to the fixed version.
The vulnerability was introduced in version v4.13 of the Kernel. All versions between v4.13 and v5.4.114 (inclusive) are affected.
You can find more information about this vulnerability in the GSD-2021-1000039 JSON file available at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1000xxx/GSD-2021-1000039.json
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
