CVE-2026-90120

Last refreshed2026-10-19

Status: UPDATED | Advisory ID: CVE-2026-90120

Key Details

CVE	CVE-2026-90120
CVSS Score / Version	8.4 (High) / CVSS v3.1
Updated	2026-10-19
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products	Linux Kernel

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

In the Linux kernel, the following vulnerability has been resolved:

irqchip/gic-v5: Check get_logical_index() return value in MADT IAFFID parsing

In gic_acpi_parse_iaffid() a given MADT GICC entry might not correspond

to a logical cpu recognized by the kernel, resulting in the cpu variable

initialization to an error value.

Currently, the get_logical_index() return value is not checked for failure,

which might result in out-of-bounds memory corruption while trying to

index a per_cpu variable array.

Add a check to evaluate get_logical_index() return value. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-90120
CVE	https://www.cve.org/CVERecord?id=CVE-2026-90120

Source

Reference

NVD

CVE