Vulnerability in Linux

CVE-2026-89904

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.

CVSS v3 metric

CVSS v3 base score 8.4 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

  • Linux — versions 496bc868d9066e034787aa14b8ad6c23e77b51ef, 7.2

References

Frequently asked questions

What is CVE-2026-89904?
CVE-2026-89904 is a high-severity vulnerability in Linux. CVSS score: 8.4/10. Published 2026-09-16.
How severe is CVE-2026-89904?
High severity. CVSS v3 base score is 8.4 out of 10.