CVE-2026-90383
Last modified
CVE-2026-90383 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.
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.
Metrics
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 142586409c8be7dc071bb94d7cd2d69ccfd99b6b, < 877423f595b60f8fe7c18b64a5d283d9e1732a13; >= 142586409c8be7dc071bb94d7cd2d69ccfd99b6b, < 6248eb1833ff0adfdbbadd5f846c2f22e02a01b0; >= 142586409c8be7dc071bb94d7cd2d69ccfd99b6b, < ef81e4a1628ecfb9cfc442de10883f383faf17a1; >= 142586409c8be7dc071bb94d7cd2d69ccfd99b6b, < 928a8e9f523df845fc496bcb9811013b67aabec5 |
| Linux | Linux | 2.6.27 |
References
Timeline
- Published
- Last Modified
- Status
- Received
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