linux/drivers/infiniband
Jack Morgenstein c482af646d IB/mlx4: Fix out-of-range array index in destroy qp flow
For non-special QPs, the port value becomes non-zero only at the
RESET-to-INIT transition. If the QP has not undergone that transition,
its port number value is still zero.

If such a QP is destroyed before being moved out of the RESET state,
subtracting one from the qp port number results in a negative value.
Using that negative value as an index into the qp1_proxy array
results in an out-of-bounds array reference.

Fix this by testing that the QP type is one that uses qp1_proxy before
using the port number. For special QPs of all types, the port number is
specified at QP creation time.

Fixes: 9433c18891 ("IB/mlx4: Invoke UPDATE_QP for proxy QP1 on MAC changes")
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-12-13 13:39:46 -05:00
..
core IB/core: Let create_ah return extended response to user 2016-12-13 13:38:27 -05:00
hw IB/mlx4: Fix out-of-range array index in destroy qp flow 2016-12-13 13:39:46 -05:00
sw IB/core: Let create_ah return extended response to user 2016-12-13 13:38:27 -05:00
ulp IB/IPoIB: Remove can't use GFP_NOIO warning 2016-11-16 20:04:48 -05:00
Kconfig qedr: Add RoCE driver framework 2016-10-14 15:00:10 -04:00
Makefile IB/rdmavt: Create module framework and handle driver registration 2016-03-10 20:37:04 -05:00