HighFix available
LoongArch: Fix acpi_package_ids[] array overflow
Type: advisorySources: OSV
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.
- Products
- Kernel
- Affected versions
- Not specified
- Fixed versions
- 6.12.110, 6.18.51, 7.2.5
- CVEs
- CVE-2026-89904
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 7 Nov 2026, 01:54 UTC · Revision 1
Source evidence
LoongArch: Fix acpi_package_ids[] array overflow
core-osv · Original sourcePublished 16 Sept 2026, 10:32 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.
osv:CVE-2026-89904
Kernel
Fixed versions: 6.12.110, 6.18.51, 7.2.5
Complete source record
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"url": "https://osv.dev/vulnerability/CVE-2026-89904",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "LoongArch: Fix acpi_package_ids[] array overflow",
"summary": "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.",
"evidence": "osv:CVE-2026-89904",
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"modified": "2026-10-28T02:30:48.755234930Z",
"provider": "osv",
"references": [
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"https://git.kernel.org/stable/c/2a2367d46d7a4ee4122b7a86e57125542dbbe963",
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"https://nvd.nist.gov/vuln/detail/CVE-2026-89904",
"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
],
"provider_metadata": {
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"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89904.json"
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"source_id": "core-osv",
"document_id": 517147,
"published_at": "2026-09-16T10:32:03.752+00:00"
}