Re: [PATCH] io_uring/rsrc: fix slab-out-of-bounds in io_buffer_register_bvec

[Keith Busch]

On Thu, Dec 18, 2025 at 01:13:11AM +0000, veygax wrote:
> On 18/12/2025 00:56, Keith Busch wrote:
> > I believe you're supposed to use the bio_add_page() API rather than open
> > code the bvec setup.
> 
> True, but I wanted fine control to prove my theory

But doesn't that just prove misusing the interface breaks things? Is
there currently a legit way to get this error without the misuse? Or is
there existing mis-use in the kernel that should be fixed instead?