CVE-2026-90383

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 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 5% of CVEs (scores of 2026-10-25)

Published

2026-09-17

Modified

2026-10-21

Record from

the NVD, synced 2026-10-22

References

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

Check your stackJSON