RDMA/cma: Rollback source IP address if failing to acquire device

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If cma_acquire_dev_by_src_ip() returns error in addr_handler(), the
device state changes back to RDMA_CM_ADDR_BOUND but the resolved source
IP address is still left. After that, if rdma_destroy_id() is called
after rdma_listen(), the device is freed without removed from
listen_any_list in cma_cancel_operation(). Revert to the previous IP
address if acquiring device fails.

Reported-by: syzbot+f3ce716af730c8f96637@syzkaller.appspotmail.com
Signed-off-by: Myungho Jung <mhjungk@gmail.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

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Myungho Jung 2019-01-09 22:27:31 -08:00 • committed by Jason Gunthorpe

parent 97099cc652

commit 5fc01fb846

1 changed files with 12 additions and 1 deletions

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13

drivers/infiniband/core/cma.c

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