Hi Logan,
On 7/4/2019 2:03 AM, Logan Gunthorpe wrote:
When a port is removed through configfs, any connected controllers
are still active and can still send commands. This causes a
use-after-free bug which is detected by KASAN for any admin command
that dereferences req->port (like in nvmet_execute_identify_ctrl).
To fix this, disconnect all active controllers when a subsystem is
removed from a port. This ensures there are no active controllers
when the port is eventually removed.
so now we are enforcing controller existence with port configfs, right ?
sounds reasonable.
Did you run your patches with other transport (RDMA/TCP/FC) ?
