Keith Busch c89a529e82 nvme-pci: fix mempool alloc size ... Convert the max size to bytes to match the units of the divisor that calculates the worst-case number of PRP entries. The result is used to determine how many PRP Lists are required. The code was previously rounding this to 1 list, but we can require 2 in the worst case. In that scenario, the driver would corrupt memory beyond the size provided by the mempool. While unlikely to occur (you'd need a 4MB in exactly 127 phys segments on a queue that doesn't support SGLs), this memory corruption has been observed by kfence. Cc: Jens Axboe <axboe@kernel.dk> Fixes: 943e942e62 ("nvme-pci: limit max IO size and segments to avoid high order allocations") Signed-off-by: Keith Busch <kbusch@kernel.org> Reviewed-by: Jens Axboe <axboe@kernel.dk> Reviewed-by: Kanchan Joshi <joshi.k@samsung.com> Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> Signed-off-by: Christoph Hellwig <hch@lst.de>		2022-12-21 09:17:25 +01:00
..
common	treewide: use get_random_u32() when possible	2022-10-11 17:42:58 -06:00
host	nvme-pci: fix mempool alloc size	2022-12-21 09:17:25 +01:00
target	for-6.2/block-2022-12-08	2022-12-13 10:43:59 -08:00
Kconfig	nvme: implement In-Band authentication	2022-08-02 17:14:49 -06:00
Makefile	nvme: implement In-Band authentication	2022-08-02 17:14:49 -06:00