CVE-2026-90383

Last refreshed2026-10-19

Status: UPDATED | Advisory ID: CVE-2026-90383

Key Details

CVE	CVE-2026-90383
CVSS Score / Version	7.8 (High) / CVSS v3.1
Updated	2026-10-19
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is low; 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:

misc: sgi-gru: remove interrupt-context page-table walks

The GRU TLB miss handler walks a process's page tables without holding

page-table locks or a reference to the mapped page. It also uses a kernel

page-table accessor on user page tables and supports only PMD-level large

mappings on x86-64.

Remove the direct walker. Send interrupt faults directly to user polling

mode so the existing call-OS fallback retries them in process context.

Remove the mmap-lock failure statistic that can no longer be incremented. (NVD)

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

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-90383
CVE	https://www.cve.org/CVERecord?id=CVE-2026-90383

Source

Reference

NVD

CVE