Bug 2535308 (CVE-2026-89904) - CVE-2026-89904 kernel: LoongArch: Fix acpi_package_ids[] array overflow
Summary: CVE-2026-89904 kernel: LoongArch: Fix acpi_package_ids[] array overflow
Keywords:
Status: NEW
Alias: CVE-2026-89904
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-16 12:01 UTC by OSIDB Bzimport
Modified: 2026-11-04 18:56 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


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Description OSIDB Bzimport 2026-09-16 12:01:08 UTC
In the Linux kernel, the following vulnerability has been resolved:

LoongArch: Fix acpi_package_ids[] array overflow

With LoongArch virt machine, a typical setting is one core per socket,
there will max 256 sockets (packages) on one VM. With PPTT acpi table,
array acpi_package_ids[] will be overflowed.

Here change the array size of acpi_package_ids[] with the max value of
MAX_PACKAGES and KVM_MAX_VCPUS.


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