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BUG: KASAN: stack-out-of-bounds in _mlx4_ib_post_send+0x1bd2/0x2770 [mlx4_ib]
Read of size 4 at addr ffff8880d5a7f980 by task kworker/0:1H/565
CPU: 0 PID: 565 Comm: kworker/0:1H Tainted: G O 5.4.84-storage #5.4.84-1+feature+linux+5.4.y+dbg+20201216.1319+b6b887b~deb10
Hardware name: Supermicro H8QG6/H8QG6, BIOS 3.00 09/04/2012
Workqueue: ib-comp-wq ib_cq_poll_work [ib_core]
Call Trace:
dump_stack+0x96/0xe0
print_address_description.constprop.4+0x1f/0x300
? irq_work_claim+0x2e/0x50
__kasan_report.cold.8+0x78/0x92
? _mlx4_ib_post_send+0x1bd2/0x2770 [mlx4_ib]
kasan_report+0x10/0x20
_mlx4_ib_post_send+0x1bd2/0x2770 [mlx4_ib]
? check_chain_key+0x1d7/0x2e0
? _mlx4_ib_post_recv+0x630/0x630 [mlx4_ib]
? lockdep_hardirqs_on+0x1a8/0x290
? stack_depot_save+0x218/0x56e
? do_profile_hits.isra.6.cold.13+0x1d/0x1d
? check_chain_key+0x1d7/0x2e0
? save_stack+0x4d/0x80
? save_stack+0x19/0x80
? __kasan_slab_free+0x125/0x170
? kfree+0xe7/0x3b0
rdma_write_sg+0x5b0/0x950 [rtrs_server]
The problem is when we send imm_wr, the type should be ib_rdma_wr, so hw
driver like mlx4 can do rdma_wr(wr), so fix it by use the ib_rdma_wr as
type for imm_wr.
Fixes: 9cb837480424 ("RDMA/rtrs: server: main functionality")
Link: https://lore.kernel.org/r/20210212134525.103456-2-jinpu.wang@cloud.ionos.com
Signed-off-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Reviewed-by: Gioh Kim <gi-oh.kim@cloud.ionos.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
e6daa8f61d