diff options
| author | Daniel Jurgens <danielj@mellanox.com> | 2019-02-02 11:09:42 +0200 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2019-02-08 16:24:44 -0700 |
| commit | d60667fc398ed34b3c7456b020481c55c760e503 (patch) | |
| tree | f8c8fec5b7dd771bd13775352fbaa0d6749c6188 /drivers/infiniband/core/security.c | |
| parent | 0c236606490b5b356ac3bb885b6417ce09bce63f (diff) | |
| download | lwn-d60667fc398ed34b3c7456b020481c55c760e503.tar.gz lwn-d60667fc398ed34b3c7456b020481c55c760e503.zip | |
IB/core: Unregister notifier before freeing MAD security
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>
Diffstat (limited to 'drivers/infiniband/core/security.c')
| -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 1efadbccf394..402449d4a888 100644 --- a/drivers/infiniband/core/security.c +++ b/drivers/infiniband/core/security.c @@ -727,9 +727,10 @@ 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) |