Use-after-free bug in RDMA/hfi1 for mm struct
Summary
GSD-2022-1001347: RDMA/hfi1: Fix use-after-free bug for mm struct. Affects Kernel versions >= 3d2a9d642512c21a12d19b9250e7a835dcb41a79, < 0b7186d657ee55e2cdefae498f07d5c1961e8023. 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 RDMA/hfi1 package is a component of the Linux Kernel that provides support for Remote Direct Memory Access (RDMA) over the HFI1 InfiniBand driver. RDMA allows for high-speed, low-latency data transfers between remote systems. The mm struct is a data structure in the Linux Kernel that represents a process's memory management information, including memory mappings and permissions. This vulnerability in RDMA/hfi1 involves a use-after-free bug in the handling of the mm struct.
Vulnerability Detail
The use-after-free bug in RDMA/hfi1 occurs when a reference to the mm struct is accessed after it has been freed. This can lead to a variety of issues, including crashes, privilege escalation, and information disclosure. An attacker may be able to exploit this vulnerability to execute arbitrary code or gain elevated privileges. The vulnerability was introduced in version v5.10 of the Linux Kernel and has been fixed in version v5.16.20.
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.
Conclusion
The use-after-free bug in RDMA/hfi1 for the mm struct can have serious security implications, including the potential for arbitrary code execution and privilege escalation. It is crucial to update the Linux Kernel to the patched version to mitigate the risk of exploitation. For further support on vulnerability remediation, you can contact DevNack.com.
See every vulnerability recorded for Kernel →
FAQ
RDMA/hfi1 is a component of the Linux Kernel that provides support for Remote Direct Memory Access (RDMA) over the HFI1 InfiniBand driver. It enables high-speed, low-latency data transfers between remote systems.
A use-after-free bug occurs when a program or system continues to reference a memory object after it has been freed. This can lead to various issues, including crashes, privilege escalation, and information disclosure.
The use-after-free bug in RDMA/hfi1 can potentially be exploited by an attacker to execute arbitrary code or gain elevated privileges. It may also result in crashes or information disclosure.
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 the Vulert Playground will analyze it for any open-source vulnerabilities, including this one.
For more information about this vulnerability, you can refer to the vulnerability details in the GSD database (https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1001xxx/GSD-2022-1001347.json).
Related vulnerabilities
Recent vulnerabilities recorded for Kernel.
