RDMA/hfi1: Prevent panic when SDMA is disabled
Summary
GSD-2022-1003354: RDMA/hfi1: Prevent panic when SDMA is disabled. Affects Kernel versions < 32e6aea33944f364d51cd263e4cd236393a188b6. 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
Habilume
Habit tracker with a companion that grows with you
Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent.
Background
The RDMA/hfi1 package is a component of the Linux Kernel that provides support for the High Frequency Interconnect (HFI) InfiniBand driver. It enables high-performance networking capabilities for applications that require low-latency and high-bandwidth communication. The package includes drivers and modules that facilitate Remote Direct Memory Access (RDMA) operations over InfiniBand networks.
Vulnerability Detail
This vulnerability in RDMA/hfi1 arises when SDMA (Synchronous Direct Memory Access) is disabled. SDMA is a feature that allows the network adapter to directly access the system memory without involving the CPU, resulting in improved performance. When SDMA is disabled, the package encounters a condition that can trigger a panic, leading to a system crash. The impact of this vulnerability can range from a denial of service (DoS) situation to potential data corruption or loss.
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
As a workaround, users can enable SDMA if it is disabled in their system. This can be done by modifying the system configuration or BIOS settings to enable SDMA support for the RDMA/hfi1 driver. However, it is recommended to apply the official fix by updating the Linux Kernel to ensure comprehensive vulnerability mitigation.
Conclusion
The RDMA/hfi1 package in the Linux Kernel is vulnerable to a panic condition when SDMA is disabled. This vulnerability can result in a system crash and potential data loss. It is crucial to update the Linux Kernel to version v5.15.46 or later to address this issue. Users can also enable SDMA as a temporary workaround, but the official fix should be applied for complete vulnerability mitigation. For further support on vulnerability remediation, please contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
RDMA/hfi1 is a component of the Linux Kernel that provides support for the High Frequency Interconnect (HFI) InfiniBand driver. It enables high-performance networking capabilities for applications that require low-latency and high-bandwidth communication.
SDMA stands for Synchronous Direct Memory Access. It is a feature that allows the network adapter to directly access the system memory without involving the CPU, resulting in improved performance.
The impact of this vulnerability can range from a denial of service (DoS) situation to potential data corruption or loss.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.15.46 or later. This update includes a commit that addresses the issue by preventing the panic when SDMA is disabled.
Yes, users can enable SDMA if it is disabled in their system. This can be done by modifying the system configuration or BIOS settings to enable SDMA support for the RDMA/hfi1 driver. However, it is recommended to apply the official fix by updating the Linux Kernel to ensure comprehensive vulnerability mitigation.
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
Habilume
Habit tracker with a companion that grows with you
Complete habits, earn Lume Points, and watch your Lume grow as you stay consistent.
