Vulnerability in mt76: mt7921
Summary
GSD-2022-1001073: mt76: mt7921: fix crash when startup fails. Affects Kernel versions < ac1260b661c2ef0d0a56680cdb5672b931b7be8f. No fix is published. How to fix ↓
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Background
The mt76 package is a driver for MediaTek MT76x0 wireless LAN devices. It provides support for various MediaTek Wi-Fi chipsets, including the mt7921. The mt7921 is a Wi-Fi 6 (802.11ax) chip that offers high-speed wireless connectivity. However, a vulnerability has been discovered in the mt7921 driver that can lead to a crash when the startup fails.
Vulnerability Detail
The vulnerability in the mt76 mt7921 driver occurs when the startup process fails. This can be triggered by various factors, such as incorrect configuration or hardware issues. When the startup fails, the driver crashes, resulting in a denial of service (DoS) condition. An attacker could potentially exploit this vulnerability to disrupt the wireless connectivity of affected devices. It is important to note that the impact and attack plausibility of this vulnerability have not been proven.
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. However, users can mitigate the risk by ensuring that their mt7921 driver is properly configured and that the hardware is functioning correctly. Regularly updating the Linux Kernel to the latest stable version is also recommended to address any potential vulnerabilities.
Conclusion
The mt76 mt7921 driver vulnerability can lead to a crash when the startup fails, resulting in a denial of service condition. It is recommended to update the Linux Kernel to version v5.17.3 or later to fix this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
mt76 is a driver for MediaTek MT76x0 wireless LAN devices, providing support for various MediaTek Wi-Fi chipsets.
mt7921 is a Wi-Fi 6 (802.11ax) chip developed by MediaTek that offers high-speed wireless connectivity.
The vulnerability can lead to a crash of the mt7921 driver, resulting in a denial of service (DoS) condition and disruption of wireless connectivity.
No, the impact and attack plausibility of this vulnerability have not been proven.
To fix the vulnerability, update your Linux Kernel to version v5.17.3 or later by downloading the latest kernel source code from the official Linux Kernel repository and compiling it.
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