[PATCH] nvme: reject completions for requests that are not in flight

[Keith Busch]

On Fri, May 22, 2026 at 11:30:34AM -0400, Chao Shi wrote:
>   Oops: general protection fault ... KASAN: null-ptr-deref
>   RIP: blk_mq_complete_request_remote+0xe5/0xa80 block/blk-mq.c:1319
>    nvme_handle_cqe drivers/nvme/host/pci.c:1418 [inline]
>    nvme_poll_cq drivers/nvme/host/pci.c:1449
>    nvme_irq drivers/nvme/host/pci.c:1463

This scenario doesn't sound specific to nvme. Should blk-mq completion
check for the IN_FLIGHT state instead?