CVE-2025-21863
7.8 HIGHIn the Linux kernel, the following vulnerability has been resolved: io_uring: prevent opcode speculation sqe->opcode is used for differ...
Published: 2025-03-12 · Last updated: 2026-06-01
Severity and scoring
- CVSS
- 7.8 HIGH
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
| Vendor | Product |
|---|---|
| linux | linux_kernel |
Description
In the Linux kernel, the following vulnerability has been resolved: io_uring: prevent opcode speculation sqe->opcode is used for different tables, make sure we santitise it against speculations.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2025-21863
- [Other]https://git.kernel.org/stable/c/18eae8420081ef8e043ad455937bfb470ef08607
- [Patch]https://git.kernel.org/stable/c/1e988c3fe1264708f4f92109203ac5b1d65de50b
- [Patch]https://git.kernel.org/stable/c/506b9b5e8c2d2a411ea8fe361333f5081c56d23a
- [Patch]https://git.kernel.org/stable/c/b9826e3b26ec031e9063f64a7c735449c43955e4
- [Other]https://git.kernel.org/stable/c/d261ead565a080e3411b0dd04e6d58a52471cac8
- [Patch]https://git.kernel.org/stable/c/fdbfd52bd8b85ed6783365ff54c82ab7067bd61b
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