CVE-2025-21863
io_uring: prevent opcode speculation
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Mar 12, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
d3656344fea0339fb0365c8df4d2beba4e0089cd < b9826e3b26ec031e9063f64a7c735449c43955e4 d3656344fea0339fb0365c8df4d2beba4e0089cd < 506b9b5e8c2d2a411ea8fe361333f5081c56d23a d3656344fea0339fb0365c8df4d2beba4e0089cd < fdbfd52bd8b85ed6783365ff54c82ab7067bd61b d3656344fea0339fb0365c8df4d2beba4e0089cd < 1e988c3fe1264708f4f92109203ac5b1d65de50b
Linux / Linux
5.6
References
git.kernel.org: https://git.kernel.org/stable/c/b9826e3b26ec031e9063f64a7c735449c43955e4 git.kernel.org: https://git.kernel.org/stable/c/506b9b5e8c2d2a411ea8fe361333f5081c56d23a git.kernel.org: https://git.kernel.org/stable/c/fdbfd52bd8b85ed6783365ff54c82ab7067bd61b git.kernel.org: https://git.kernel.org/stable/c/1e988c3fe1264708f4f92109203ac5b1d65de50b