CVE-2025-21863
HIGH severity · CVSS 7.8
7.8CVSS HIGH
Summary
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.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/1e988c3fe1264708f4f92109203ac5b1d65de50b ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/1e988c3fe1264708f4f92109203ac5b1d65de50bPatch
- https://git.kernel.org/stable/c/506b9b5e8c2d2a411ea8fe361333f5081c56d23aPatch
- https://git.kernel.org/stable/c/b9826e3b26ec031e9063f64a7c735449c43955e4Patch
- https://git.kernel.org/stable/c/fdbfd52bd8b85ed6783365ff54c82ab7067bd61bPatch
- https://git.kernel.org/stable/c/18eae8420081ef8e043ad455937bfb470ef08607
- https://git.kernel.org/stable/c/87e9eef43c758da267f6332678058a79764c7eba
- https://git.kernel.org/stable/c/d261ead565a080e3411b0dd04e6d58a52471cac8
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html