Correct Bitmap Allocation Size in powerpc/xive/spapr

Kernel Updated 02 Oct 2025

Summary

31/07/2022

Disclosed on

N/A

Severity

No i

Fix available

Unrated

Severity

Not published

CVSS Score

GSD-2022-1004166: powerpc/xive/spapr: correct bitmap allocation size. Affects Kernel versions < 99d1c36bddd93919072b5a51a89297bbb5ad6a6f. No fix is published. How to fix ↓

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Background

The powerpc/xive/spapr package is a component of the Linux Kernel, which is responsible for handling interrupt virtualization for PowerPC systems. It provides support for the XIVE interrupt controller in the SPAPR (Server Platform Architecture for Power) platform. The XIVE interrupt controller manages interrupt distribution and prioritization for virtual machines running on PowerPC systems. This vulnerability affects the bitmap allocation size in the powerpc/xive/spapr package.

Vulnerability Detail

The vulnerability in the powerpc/xive/spapr package relates to an incorrect bitmap allocation size. This issue could potentially lead to memory corruption or other security vulnerabilities. Attackers may be able to exploit this vulnerability to gain unauthorized access, execute arbitrary code, or cause a denial-of-service condition. The vulnerability has been identified and fixed in the Linux Kernel version v5.18.13 by commit 99d1c36bddd93919072b5a51a89297bbb5ad6a6f.

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 v5.18.13 or later. This can be done by applying the commit 99d1c36bddd93919072b5a51a89297bbb5ad6a6f to the kernel source code. Detailed instructions on how to update the Linux Kernel can be found in the official documentation or community resources.

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Workaround

There is no specific workaround mentioned for this vulnerability.

Conclusion

In conclusion, the powerpc/xive/spapr package in the Linux Kernel is vulnerable to an incorrect bitmap allocation size issue. This vulnerability could potentially lead to memory corruption or other security vulnerabilities. It is recommended to update the Linux Kernel to version v5.18.13 or later to fix this vulnerability. For further support on vulnerability remediation, please contact DevNack.com.

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