Vulnerability in Kernel package: mt76 potential DMA mapping leak
Summary
GSD-2021-1000397: mt76: fix potential DMA mapping leak. Affects Kernel versions >= 27d5c528a7ca08dcd44877fdd9fc08b76630bf77, < 9fa26701cd1fc4d932d431971efc5746325bdfce. No fix is published. How to fix ↓
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Background
The Kernel package is an essential component of the Linux operating system, responsible for managing the system's core functionality. It provides various services and interfaces for hardware devices, memory management, process scheduling, and more. The mt76 driver is a part of the Kernel package and is used for supporting MediaTek MT76x0 wireless LAN devices. This vulnerability in the mt76 driver could lead to a potential DMA mapping leak.
Vulnerability Detail
The vulnerability in the mt76 driver arises from a potential DMA mapping leak. DMA (Direct Memory Access) is a technique used by devices to transfer data directly to and from the system's memory without involving the CPU. In certain scenarios, the mt76 driver may fail to properly release the DMA mappings, leading to a resource leak. Although the impact and attack plausibility have not been proven, this vulnerability could potentially be exploited by an attacker to exhaust system resources or cause other adverse effects.
How To Fix
No fixed version is published for this vulnerability.
To fix this vulnerability, it is recommended to update the Linux Kernel package to version v5.10.37 or later. The fix for this issue was implemented in commit 9fa26701cd1fc4d932d431971efc5746325bdfce of the Linux Kernel repository. Updating the Kernel package to the fixed version will ensure that the potential DMA mapping leak is addressed.
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Workaround
There is no specific workaround mentioned for this vulnerability.
Conclusion
In conclusion, the Kernel package's mt76 driver is vulnerable to a potential DMA mapping leak. This vulnerability could have various consequences if exploited. It is recommended to update the Kernel package to version v5.10.37 or later to address this issue. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The Kernel package is a crucial component of the Linux operating system that manages core functionality and provides various services and interfaces.
The mt76 driver is a part of the Kernel package and is responsible for supporting MediaTek MT76x0 wireless LAN devices.
DMA mapping is a technique used by devices to transfer data directly to and from the system's memory without involving the CPU.
Although the impact and attack plausibility have not been proven, this vulnerability could potentially be exploited to exhaust system resources or cause other adverse effects.
To fix this vulnerability, update the Linux Kernel package to version v5.10.37 or later, which includes the necessary fix for the potential DMA mapping leak.
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