ARM: footbridge: fix PCI interrupt mapping in Kernel
Summary
GSD-2021-1000037: ARM: footbridge: fix PCI interrupt mapping. Affects Kernel versions >= 30fdfb929e82450bbf3d0e0aba56efbc29b52b52, < 1fc087fdb98d556b416c82ed6e3964a30885f47a. No fix is published. How to fix ↓
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Background
The Kernel is a critical component of the Linux operating system that provides core functionality and interfaces with hardware devices. It manages system resources, including memory, processes, and input/output operations. 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 discovered in the footbridge implementation that affects the mapping of PCI interrupts.
Vulnerability Detail
The vulnerability in the footbridge implementation of the Kernel affects the mapping of PCI interrupts. This can lead to incorrect interrupt handling and potentially cause system instability or crashes. The issue was introduced in version v4.13 of the Kernel and has been fixed in version v5.10.32. The vulnerability has not been proven to be exploitable, but it is important to update to the fixed version to ensure system stability and security.
How To Fix
No fixed version is published for this vulnerability.
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Workaround
There is no specific workaround mentioned for this vulnerability.
Conclusion
In conclusion, the footbridge implementation in the Kernel has a vulnerability related to PCI interrupt mapping. This can lead to system instability or crashes. It is recommended to update the Kernel to version v5.10.32 or later to fix this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The vulnerability can lead to incorrect interrupt handling in the footbridge implementation of the Kernel, potentially causing system instability or crashes.
You can use the Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your package-lock.json file and Vulert will analyze it for any open-source vulnerabilities, including this one.
The exploitability of this vulnerability has not been proven. However, it is still important to update to the fixed version of the Kernel to ensure system stability and security.
The recommended mitigation is to update the Kernel to the fixed version. There are no specific mitigations mentioned for this vulnerability.
You can find more information about this vulnerability in the GSD-2021-1000037.json file in the GSD database (https://github.com/cloudsecurityalliance/gsd-database/blob/main/2021/1000xxx/GSD-2021-1000037.json).
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