Linux Kernel io_uring Opcode Specification Vulnerability

A vulnerability in the Linux kernel's io_uring implementation allowed for opcode speculations, as the request's opcode was utilized across different tables without proper sanitization. This issue has been addressed by ensuring that the opcode is correctly sanitized to prevent speculative execution.

Impact

Exploitation of this vulnerability could lead to unauthorized speculation of opcodes, potentially allowing for manipulation or misinterpretation of io_uring operations.