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398391071f
linux/drivers/infiniband/core
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Parav Pandit 398391071f IB/cm: Replace members of sa_path_rec with 'struct sgid_attr *' 
While processing a path record entry in CM messages the associated GID
attribute is now also supplied.

Currently for RoCE a netdevice's net namespace pointer and ifindex are
stored in path record entry. Both of these fields of the netdev can change
anytime while processing CM messages. Additionally storing net namespace
without holding reference will lead to use-after-free crash. Therefore it
is removed. Netdevice information for RoCE is instead provided via
referenced gid attribute in ib_cm requests.

Such a design leads to a situation where the kernel can crash when the net
pointer becomes invalid. However today it is always initialized to
init_net, which cannot become invalid. In order to support processing
packets in any arbitrary namespace of the received packet, it is necessary
to avoid such conditions.

This patch removes the dependency on the net pointer and ifindex; instead
it will rely on SGID attribute which contains a pointer to netdev.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
2018-06-25 14:19:57 -06:00
..
addr.c RDMA/rdma_cm: Delete rdma_addr_client 2018-04-17 19:42:50 -06:00
agent.c IB/core: Rename ib_destroy_ah to rdma_destroy_ah 2017-05-01 14:32:43 -04:00
agent.h
cache.c IB/core: Free GID table entry during GID deletion 2018-06-22 09:02:59 -06:00
cgroup.c IB/core: added support to use rdma cgroup controller 2017-01-10 11:14:27 -05:00
cm_msgs.h
cm.c IB/cm: Replace members of sa_path_rec with 'struct sgid_attr *' 2018-06-25 14:19:57 -06:00
cma_configfs.c IB/cma: use strlcpy() instead of strncpy() 2018-01-15 15:33:21 -07:00
cma_priv.h RDMA/cma: Move rdma_cm_state to cma_priv.h 2018-03-29 13:54:21 -06:00
cma.c IB/cm: Replace members of sa_path_rec with 'struct sgid_attr *' 2018-06-25 14:19:57 -06:00
core_priv.h RDMA/core: Remove indirection through ib_cache_setup() 2018-05-29 15:19:31 -06:00
cq.c RDMA/core: Reduce poll batch for direct cq polling 2018-03-06 20:08:39 -07:00
device.c IB: Replace ib_query_gid/ib_get_cached_gid with rdma_query_gid 2018-06-18 11:09:05 -06:00
fmr_pool.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
iwcm.c RDMA/netlink: Fix general protection fault 2017-12-07 15:28:07 -05:00
iwcm.h iw_cm: free cm_id resources on the last deref 2016-08-02 13:15:18 -04:00
iwpm_msg.c RDMA/iwpm: Properly mark end of NL messages 2017-09-29 11:32:42 -04:00
iwpm_util.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
iwpm_util.h iwpm: crash fix for large connections test 2016-03-16 13:48:32 -04:00
mad_priv.h IB/mad: Use IDR for agent IDs 2018-06-18 11:22:54 -06:00
mad_rmpp.c IB/mad: Change slid in RMPP recv from 16 to 32 bits 2017-08-08 14:47:18 -04:00
mad_rmpp.h
mad.c IB/mad: Use IDR for agent IDs 2018-06-18 11:22:54 -06:00
Makefile Verbs flow counters support 2018-06-04 08:48:11 -06:00
mr_pool.c IB/core: add a simple MR pool 2016-05-13 13:37:18 -04:00
multicast.c IB: Make ib_init_ah_from_mcmember set sgid_attr 2018-06-25 14:19:56 -06:00
netlink.c RDMA/netlink: Simplify code of autoload modules 2018-01-02 13:36:57 -07:00
nldev.c RDMA/nldev: Return port capability flag for IB only 2018-06-18 11:09:05 -06:00
opa_smi.h
packer.c IB/core: trivial prink cleanup. 2016-03-03 10:20:25 -05:00
rdma_core.c IB/uverbs: Refactor uverbs_finalize_objects 2018-06-19 10:53:02 -06:00
rdma_core.h IB/uverbs: Refactor uverbs_finalize_objects 2018-06-19 10:53:02 -06:00
restrack.c RDMA/restrack: Change SPDX tag to properly reflect license 2018-06-05 14:04:20 -06:00
roce_gid_mgmt.c IB/core: Remove duplicate declaration of gid_cache_wq 2018-05-24 09:39:25 -06:00
rw.c IB/core: remove redundant check on prot_sg_cnt 2017-10-10 10:49:45 -04:00
sa_query.c IB/cm: Replace members of sa_path_rec with 'struct sgid_attr *' 2018-06-25 14:19:57 -06:00
sa.h
security.c IB/core: Use CONFIG_SECURITY_INFINIBAND to compile out security code 2018-05-01 11:16:36 -04:00
smi.c
smi.h
sysfs.c IB/core: Replace ib_query_gid with rdma_get_gid_attr 2018-06-18 11:09:05 -06:00
ucm.c RDMA: Use u64_to_user_ptr everywhere 2018-03-29 13:42:29 -06:00
ucma.c infiniband: fix a possible use-after-free bug 2018-06-04 09:37:03 -06:00
ud_header.c IB/core: trivial prink cleanup. 2016-03-03 10:20:25 -05:00
umem_odp.c treewide: Use array_size() in vzalloc() 2018-06-12 16:19:22 -07:00
umem.c Merge branch 'mr_fix' into git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma for-next 2018-05-28 11:44:35 -06:00
user_mad.c IB: Make ib_init_ah_attr_from_wc set sgid_attr 2018-06-25 14:19:56 -06:00
uverbs_cmd.c IB/core: add max_send_sge and max_recv_sge attributes 2018-06-18 13:17:28 -06:00
uverbs_ioctl_merge.c treewide: Use struct_size() for kmalloc()-family 2018-06-06 11:15:43 -07:00
uverbs_ioctl.c IB/uverbs: Delete type and id from uverbs_obj_attr 2018-06-22 09:02:59 -06:00
uverbs_main.c IB/core: Expose ib_ucontext from a given ib_uverbs_file 2018-06-19 10:53:02 -06:00
uverbs_marshall.c IB/cm: Replace members of sa_path_rec with 'struct sgid_attr *' 2018-06-25 14:19:57 -06:00
uverbs_std_types_counters.c IB/uverbs: Add read counters support 2018-06-02 07:33:55 +03:00
uverbs_std_types_cq.c IB/uverbs: Add an ib_uobject getter to ioctl() infrastructure 2018-06-02 07:33:53 +03:00
uverbs_std_types_dm.c IB/uverbs: Add alloc/free dm uverbs ioctl support 2018-04-05 11:16:39 -06:00
uverbs_std_types_flow_action.c Verbs flow counters support 2018-06-04 08:48:11 -06:00
uverbs_std_types_mr.c IB/uverbs: Add device memory registration ioctl support 2018-04-05 11:16:39 -06:00
uverbs_std_types.c IB/uverbs: Add a macro to define a type with no kernel known size 2018-06-19 10:53:02 -06:00
uverbs.h IB/uverbs: Add support for flow counters 2018-06-02 07:33:56 +03:00
verbs.c IB: Make ib_init_ah_attr_from_wc set sgid_attr 2018-06-25 14:19:56 -06:00