Vulnerability in rockchip_i2s_tdm_resume of Kernel
Summary
GSD-2022-1001562: ASoC: rockchip: Fix PM usage reference of rockchip_i2s_tdm_resume. Affects Kernel versions >= 081068fd641403994f0505e6b91e021d3925f348, < 4e5510219111607b1f1875ab3c3f0485ba3c381c. No fix is published. How to fix ↓
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Background
The Kernel is a crucial component of the Linux operating system, responsible for managing system resources and facilitating communication between hardware and software. The rockchip_i2s_tdm_resume function in the Kernel's ASoC (Audio System on Chip) subsystem is vulnerable to a specific issue. This function is used to resume the operation of the Rockchip I2S TDM (Time Division Multiplexing) interface after a system suspend. The vulnerability in this function can potentially lead to security breaches or system instability.
Vulnerability Detail
The vulnerability in rockchip_i2s_tdm_resume arises from a misuse of power management (PM) references. The function fails to correctly handle PM references, which can result in improper resource management and potential memory corruption. An attacker with local access to the system may be able to exploit this vulnerability to execute arbitrary code or cause a denial-of-service (DoS) condition. 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
As a workaround, users can avoid the exploitation of this vulnerability by disabling the affected functionality or by preventing untrusted local users from accessing the system. However, applying the official fix by updating the Kernel is the recommended approach.
Conclusion
The vulnerability in rockchip_i2s_tdm_resume of the Kernel's ASoC subsystem can lead to security breaches or system instability. It is crucial to update the Linux Kernel to version v5.16.19 or later to fix this vulnerability. Applying the official fix ensures that the vulnerable code is replaced with the patched version. For further support on vulnerability remediation, you can reach out to DevNack.com.
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FAQ
The impact of this vulnerability can range from arbitrary code execution to system instability or denial-of-service conditions. However, the actual impact and attack plausibility have not been proven yet.
You can use Vulert's playground (https://vulert.com/scanner) to check if your system is affected by this vulnerability. Vulert monitors and alerts in real-time for open-source vulnerabilities without requiring access to the code or installation.
As of now, 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.
No, this vulnerability requires local access to the system to be exploited. Remote exploitation is not possible.
To exploit this vulnerability, an attacker would need local access to the system. No additional prerequisites are known at this time.
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