diff options
| author | Daniel Jurgens <danielj@mellanox.com> | 2019-02-02 11:09:42 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-05-08 07:21:53 +0200 |
| commit | dabcbe58d8bc289c544f0bc7750079a6ca09db14 (patch) | |
| tree | 543c8f41b9cbe9c07e1e99660baba39e849f356d /drivers/infiniband | |
| parent | d1698f74bdbd4171d5b2deb0d17239f575865cf6 (diff) | |
IB/core: Unregister notifier before freeing MAD security
commit d60667fc398ed34b3c7456b020481c55c760e503 upstream.
If the notifier runs after the security context is freed an access of
freed memory can occur.
Fixes: 47a2b338fe63 ("IB/core: Enforce security on management datagrams")
Signed-off-by: Daniel Jurgens <danielj@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/core/security.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/infiniband/core/security.c b/drivers/infiniband/core/security.c index 9b0bea8303e0..3de94b895d5b 100644 --- a/drivers/infiniband/core/security.c +++ b/drivers/infiniband/core/security.c @@ -728,9 +728,10 @@ void ib_mad_agent_security_cleanup(struct ib_mad_agent *agent) if (!rdma_protocol_ib(agent->device, agent->port_num)) return; - security_ib_free_security(agent->security); if (agent->lsm_nb_reg) unregister_lsm_notifier(&agent->lsm_nb); + + security_ib_free_security(agent->security); } int ib_mad_enforce_security(struct ib_mad_agent_private *map, u16 pkey_index) |