ARM: footbridge: fix PCI interrupt mapping
Summary
GSD-2021-1000020: ARM: footbridge: fix PCI interrupt mapping. Affects Kernel versions >= 30fdfb929e82450bbf3d0e0aba56efbc29b52b52, < c3efce8cc9807339633ee30e39882f4c8626ee1d. 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 ARM footbridge is a component of the Linux Kernel that provides support for PCI devices. It is responsible for mapping PCI interrupts to the appropriate interrupt controller. However, a vulnerability has been discovered in the footbridge module that affects the mapping of PCI interrupts.
Vulnerability Detail
The vulnerability in the footbridge module can lead to incorrect mapping of PCI interrupts, which can result in devices not receiving the expected interrupts. This can cause various issues, including device malfunctions, data corruption, or system instability. The vulnerability was introduced in version v4.13 of the Linux Kernel and has been fixed in version v5.11.16.
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 →
Workaround
There is no specific workaround mentioned for this vulnerability. The recommended solution is to update the Linux Kernel to the fixed version.
Conclusion
The ARM footbridge module in the Linux Kernel is vulnerable to a PCI interrupt mapping issue. This can cause device malfunctions, data corruption, or system instability. It is recommended to update the Linux Kernel to version v5.11.16 or later to fix the vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
The vulnerability can cause incorrect mapping of PCI interrupts, leading to device malfunctions, data corruption, or system instability.
You can use Vulert Playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your package-lock.json file to the playground and it will alert you if the vulnerability is present.
Yes, the vulnerability has been fixed in version v5.11.16 of the Linux Kernel. It is recommended to update to this version or later to mitigate the vulnerability.
No, the recommended solution is to update the Linux Kernel to the fixed version. Manually fixing the vulnerability without updating the Kernel may not be feasible or effective.
You can find more information about this vulnerability in the GSD-2021-1000020.json file available in the GSD database (https://github.com/cloudsecurityalliance/gsd-database).
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
