Data Race Vulnerability in drop_monitor Package
Summary
GSD-2022-1000552: drop_monitor: fix data-race in dropmon_net_event / trace_napi_poll_hit. Affects Kernel versions >= 4ea7e38696c7e798c47ebbecadfd392f23f814f9, < 234ffe4e4854858e3a2a3a457b622bb043bc10c2. No fix is published. How to fix ↓
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Background
The drop_monitor package is a component of the Linux Kernel, which is responsible for monitoring network events and tracing NAPI poll hits. It was introduced in version v2.6.31 of the Linux Kernel. The package plays a crucial role in network monitoring and analysis, providing insights into network performance and troubleshooting. However, a data race vulnerability has been discovered in the dropmon_net_event and trace_napi_poll_hit functions, which can lead to unpredictable behavior and potential security risks.
Vulnerability Detail
The data race vulnerability in drop_monitor arises due to a race condition in the dropmon_net_event and trace_napi_poll_hit functions. This vulnerability can be exploited by an attacker to manipulate network events and potentially cause denial of service or execute arbitrary code. The vulnerability was fixed in Linux Kernel version v5.16.11 by commit 234ffe4e4854858e3a2a3a457b622bb043bc10c2. The impact and attack plausibility of this vulnerability have not been proven yet.
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 data race vulnerability in the drop_monitor package of the Linux Kernel can pose potential security risks and lead to unpredictable behavior. It is crucial to update the Linux Kernel to version v5.16.11 or later to mitigate this vulnerability. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
The drop_monitor package is a component of the Linux Kernel that monitors network events and traces NAPI poll hits. It provides valuable insights into network performance and troubleshooting.
A data race vulnerability occurs when multiple threads or processes access shared data concurrently without proper synchronization. This can lead to unpredictable behavior and potential security risks.
The impact of this vulnerability can vary depending on the attacker's capabilities and intentions. It could potentially lead to denial of service or allow the execution of arbitrary code.
This vulnerability was fixed in Linux Kernel version v5.16.11 by commit 234ffe4e4854858e3a2a3a457b622bb043bc10c2. It is recommended to update to this version or later to mitigate the risk.
No proof of concept or exploit has been provided at this time. The impact and attack plausibility of this vulnerability have not been proven yet.
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