Refcount Leak in brcmstb_pm_probe in Kernel
Summary
GSD-2022-1004244: soc: bcm: brcmstb: pm: pm-arm: Fix refcount leak in brcmstb_pm_probe. Affects Kernel versions >= 0b741b8234c86065fb6954d32d427b3f7e14756f, < dcafd5463d8f20c4f90ddc138a5738adb99f74c8. No fix is published. How to fix ↓
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Background
The Kernel is a crucial component of the Linux operating system that provides core functionality and acts as a bridge between hardware and software. It manages system resources, facilitates communication between different software components, and ensures the stability and security of the system. The brcmstb_pm_probe function in the Kernel's bcm brcmstb pm-arm module is responsible for handling power management operations on Broadcom Set-Top Box (STB) SoCs. This vulnerability specifically affects the refcount handling in brcmstb_pm_probe, leading to a potential resource leak.
Vulnerability Detail
The vulnerability arises due to a refcount leak in the brcmstb_pm_probe function of the bcm brcmstb pm-arm module in the Kernel. When this function is called, it fails to properly release resources, resulting in a refcount leak. An attacker could potentially exploit this vulnerability to exhaust system resources, leading to 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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Conclusion
The refcount leak in brcmstb_pm_probe in the Kernel's bcm brcmstb pm-arm module can potentially lead to a denial-of-service (DoS) condition. It is crucial to update the Linux Kernel to version v5.18.8 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The impact of this vulnerability could potentially lead to a denial-of-service (DoS) condition by exhausting system resources.
You can use Vulert's playground at Vulert 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.
No specific workaround has been provided for this vulnerability. It is recommended to update the Linux Kernel to the latest version.
No known exploits for this vulnerability have been reported at this time.
You can find more information about this vulnerability in the GSD-2022-1004244 entry of the GSD database at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1004xxx/GSD-2022-1004244.json.
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