CVE-2025-21863 Information

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.

Reference

https://git.kernel.org/stable/c/1e988c3fe1264708f4f92109203ac5b1d65de50b https://git.kernel.org/stable/c/506b9b5e8c2d2a411ea8fe361333f5081c56d23a https://git.kernel.org/stable/c/b9826e3b26ec031e9063f64a7c735449c43955e4 https://git.kernel.org/stable/c/fdbfd52bd8b85ed6783365ff54c82ab7067bd61b