Vulnerabilities tagged "kernel"

A post on exploiting a bug that Jann Horn discovered in the linux kernel's memory management (MM) subsystem.The bug isn't detailed in this post and is fairly complex (there is a project zero bug report but it's difficult to understand without deep knowledge of MM internals), though they state it will be written up in a future blogpost...

At its core, a simple, yet odd Linux kernel issue, `__io_req_init_async` assumes that the new request (`req`) being submitted was submitted by its own worker, so it sets the `req->work.identity` to `current->io_uring`.