Fix crash with stop filters in single-range mode in Kernel
Summary
GSD-2022-1000681: perf/x86/intel/pt: Fix crash with stop filters in single-range mode. Affects Kernel versions >= 670638477aede0d7a355ced04b569214aa3feacd, < feffb6ae2c80b9a8206450cdef90f5943baced99. No fix is published. How to fix ↓
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Background
The Kernel is a critical component of the Linux operating system that manages the system's resources and facilitates communication between hardware and software. It provides essential functionalities such as process management, memory management, and device drivers. The vulnerability in question affects the Kernel's perf/x86/intel/pt module when using stop filters in single-range mode.
Vulnerability Detail
The vulnerability arises from a flaw in the perf/x86/intel/pt module of the Kernel. When stop filters are utilized in single-range mode, a crash can occur. The impact and plausibility of an attack exploiting this vulnerability have not been proven yet. However, it is crucial to address this issue to prevent potential security breaches. The vulnerability was introduced in Kernel version v5.5 and has been fixed in version v5.16.8.
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
The vulnerability in the Kernel's perf/x86/intel/pt module when using stop filters in single-range mode has been identified and fixed in Kernel version v5.16.8. It is recommended to update the Linux Kernel to this version or later to mitigate the vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability is not yet proven. However, it has the potential to lead to security breaches if exploited.
You can use Vulert's playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Simply upload your manifest file (e.g., package-lock.json) and Vulert will analyze it in real-time.
No known exploit for this vulnerability has been reported at this time.
The recommended mitigation is to update the Linux Kernel to version v5.16.8 or later.
You can refer to the vulnerability details in the GSD database (https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1000xxx/GSD-2022-1000681.json) for more information.
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