Vulnerability in Kernel: mfd: davinci_voicecodec
Summary
GSD-2022-1002702: mfd: davinci_voicecodec: Fix possible null-ptr-deref davinci_vc_probe(). Affects Kernel versions >= b5e29aa880be84c271be8d0726cec4018bfbfd74, < 579944b9f38727d9ff570b58f83bc424e8af8398. No fix is published. How to fix ↓
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Background
The Kernel is a critical component of the Linux operating system that provides core functionality and interfaces with hardware devices. The davinci_voicecodec module is responsible for managing the voice codec on Texas Instruments DaVinci platforms. It allows audio data to be encoded and decoded for communication purposes. However, a vulnerability has been discovered in the davinci_vc_probe() function, which could lead to a null pointer dereference.
Vulnerability Detail
The davinci_vc_probe() function in the davinci_voicecodec module of the Kernel is susceptible to a null pointer dereference. This vulnerability was introduced in version v5.4 and fixed in version v5.18.3. An attacker could potentially exploit this vulnerability to cause a denial-of-service condition or execute arbitrary code with kernel privileges. 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 known workaround for this vulnerability at the moment.
Conclusion
In conclusion, the Kernel's davinci_voicecodec module is vulnerable to a null pointer dereference in the davinci_vc_probe() function. It is crucial to update the Kernel to version v5.18.3 or later to mitigate this vulnerability. For further support and assistance with vulnerability remediation, please contact DevNack.com.
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FAQ
The davinci_voicecodec module is responsible for managing the voice codec on Texas Instruments DaVinci platforms. It enables audio data encoding and decoding for communication purposes.
A null pointer dereference occurs when a program attempts to access or manipulate data using a null pointer, resulting in a crash or undefined behavior.
This vulnerability could lead to a denial-of-service condition or allow an attacker to execute arbitrary code with kernel privileges, potentially compromising the entire system.
You can use the Vulert Playground at Vulert Scanner to check if your system is affected by this vulnerability. Simply upload your package-lock.json file to the playground, and it will provide real-time alerts for open-source vulnerabilities.
For more details about this vulnerability, you can refer to the vulnerability database entry at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1002xxx/GSD-2022-1002702.json.
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