Refcount Leak in powerpc/xive Package
Summary
GSD-2022-1003033: powerpc/xive: Fix refcount leak in xive_spapr_init. Affects Kernel versions >= eac1e731b59ee3b5f5e641a7765c7ed41ed26226, < 6e806485d851986a2445267608f27cb4ba2ed774. No fix is published. How to fix ↓
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Background
The powerpc/xive package is a component of the Linux Kernel, specifically designed for PowerPC architecture. It provides support for the XIVE interrupt controller, which is responsible for managing interrupts on PowerPC systems. The XIVE controller allows for efficient interrupt handling and distribution across multiple processors. However, a vulnerability has been discovered in the xive_spapr_init function, which can lead to a refcount leak.
Vulnerability Detail
The vulnerability in the xive_spapr_init function of the powerpc/xive package can result in a refcount leak. This leak occurs when the function fails to properly release a reference count, leading to a resource leak. An attacker could potentially exploit this vulnerability to exhaust system resources, resulting in 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
There is no specific workaround mentioned for this vulnerability.
Conclusion
The powerpc/xive package in the Linux Kernel is vulnerable to a refcount leak in the xive_spapr_init function. This vulnerability can potentially lead to a denial of service (DoS) condition. It is recommended to update the Linux Kernel to version v5.17.14 or later to mitigate this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.
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FAQ
The powerpc/xive package is a component of the Linux Kernel that provides support for the XIVE interrupt controller on PowerPC systems.
The vulnerability can potentially lead to a denial of service (DoS) condition by exhausting system resources.
To fix this vulnerability, update the Linux Kernel to version v5.17.14 or later.
No specific workaround has been mentioned for this vulnerability.
For more details, refer to the vulnerability report at https://github.com/cloudsecurityalliance/gsd-database/blob/main/2022/1003xxx/GSD-2022-1003033.json
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