Bluetooth: btmtksdio: Fix kernel oops in btmtksdio_interrupt
Summary
GSD-2022-1002076: Bluetooth: btmtksdio: Fix kernel oops in btmtksdio_interrupt. Affects Kernel versions >= 9aebfd4a2200ab8075e44379c758bccefdc589bb, < 70a6cf749d9ff9f463490248322e5343199bc267. No fix is published. How to fix ↓
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Background
The Bluetooth btmtksdio driver is a component of the Linux Kernel. It provides support for MediaTek SDIO-based Bluetooth devices. The driver allows communication between the Bluetooth hardware and the operating system, enabling various Bluetooth functionalities.
Vulnerability Detail
The btmtksdio driver in the Linux Kernel versions v5.2 to v5.10.109 is vulnerable to a kernel oops in the btmtksdio_interrupt function. This vulnerability can potentially lead to a denial-of-service (DoS) condition or arbitrary code execution. The issue was introduced in version v5.2 and has been fixed in version v5.10.110 by commit 70a6cf749d9ff9f463490248322e5343199bc267.
How To Fix
No fixed version is published for this vulnerability.
To fix this vulnerability, it is recommended to update the Linux Kernel to version v5.10.110 or later. This can be done by pulling the latest updates from the official Linux Kernel repository and rebuilding the kernel. Alternatively, users can wait for their Linux distribution to release an updated kernel package that includes the fix.
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Workaround
There is no known workaround for this vulnerability. It is necessary to apply the fix by updating the Linux Kernel.
Conclusion
The Bluetooth btmtksdio driver in the Linux Kernel versions v5.2 to v5.10.109 is vulnerable to a kernel oops in the btmtksdio_interrupt function. This vulnerability can potentially lead to a denial-of-service (DoS) condition or arbitrary code execution. It is recommended to update the Linux Kernel to version v5.10.110 or later to fix this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
This vulnerability can potentially lead to a denial-of-service (DoS) condition or arbitrary code execution.
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 Vulert will analyze it for any known vulnerabilities.
At the time of this report, there is no known exploit for this vulnerability. However, it is important to apply the fix as soon as possible to mitigate any potential risks.
Yes, this vulnerability can be exploited remotely if an attacker can send specially crafted Bluetooth packets to the vulnerable system.
The only known mitigation is to update the Linux Kernel to a version that includes the fix for this vulnerability.
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