CVE-2026-90383 | BDVDB-2026-376161 Detail
LinuxLinux
Description#
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.
Impact#
Per CVSS v3.1: confidentiality impact high, integrity impact high, availability impact high. Attack vector: local.
Weaknesses#
No weakness recorded in the source data.
References#
- https://git.kernel.org/stable/c/0ca505b973aa1a5e3fcca7bd04774e794ff5e662
- 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
Exploit#
No public exploit known
History#
- Version 1Record published in the CVE List.
- Version 2Most recent update recorded in the CVE List.