RDMA/cma: Check existence of netdevice during port validation

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[ Upstream commit 00db63c128 ]

If valid netdevice is not found for RoCE, GID table should not be
searched with NULL netdevice.

Doing so causes the search routines to ignore the netdev argument and may
match the wrong GID table entry if the netdev is deleted.

Fixes: abae1b71dd ("IB/cma: cma_validate_port should verify the port and netdevice")
Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Mark Bloch <markb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Parav Pandit 2018-01-09 15:58:54 +02:00 • committed by Greg Kroah-Hartman

parent 48b8839d91

commit 889177d172

1 changed files with 5 additions and 3 deletions

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drivers/infiniband/core/cma.c

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