High 7.8Published Sep 17, 2026

CVE-2026-90383misc: sgi-gru: remove interrupt-context page-table walks

Updated under an hour ago (Oct 28, 2026, 11:00 AM ET)

Does this affect you?

It affects Linux. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

Do this next

Start free and add your stack

Free account, 1 product

Every CVE for Linux

Exploited in the last 30 days

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.

CVSS: 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Oct 21, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	142586409c8be7dc071bb94d7cd2d69ccfd99b6b builds before 5a540ced720b4397306337cab34af1af4b30827c; 142586409c8be7dc071bb94d7cd2d69ccfd99b6b builds before 877423f595b60f8fe7c18b64a5d283d9e1732a13; 142586409c8be7dc071bb94d7cd2d69ccfd99b6b builds before 6248eb1833ff0adfdbbadd5f846c2f22e02a01b0; from 142586409c8be7dc071bb94d7cd2d69ccfd99b6b before ef81e4a1628ecfb9cfc442de10883f383faf17a1; 142586409c8be7dc071bb94d7cd2d69ccfd99b6b builds before 928a8e9f523df845fc496bcb9811013b67aabec5	CNA record

References

References

https://git.kernel.org/stable/c/5a540ced720b4397306337cab34af1af4b30827c
https://git.kernel.org/stable/c/877423f595b60f8fe7c18b64a5d283d9e1732a13
https://git.kernel.org/stable/c/6248eb1833ff0adfdbbadd5f846c2f22e02a01b0
https://git.kernel.org/stable/c/ef81e4a1628ecfb9cfc442de10883f383faf17a1
https://git.kernel.org/stable/c/928a8e9f523df845fc496bcb9811013b67aabec5

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.