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46bdf370f6
linux-next/drivers/infiniband/core
History
Kamal Heib 46bdf370f6 RDMA/core: Fix panic when port_data isn't initialized 
This happens if assign_name() returns failure when called from
ib_register_device(), that will lead to the following panic in every time
that someone touches the port_data's data members.

 BUG: unable to handle kernel NULL pointer dereference at 00000000000000c0
 PGD 0 P4D 0
 Oops: 0002 [#1] SMP PTI
 CPU: 19 PID: 1994 Comm: systemd-udevd Not tainted 5.1.0-rc5+ #1
 Hardware name: HP ProLiant DL360p Gen8, BIOS P71 12/20/2013
 RIP: 0010:_raw_spin_lock_irqsave+0x1e/0x40
 Code: 85 ff 66 2e 0f 1f 84 00 00 00 00 00 66 66 66 66 90 53 9c 58 66 66 90
 66 90 48 89 c3 fa 66 66 90 66 66 90 31 c0 ba 01 00 00 00 <f0> 0f b1 17 0f
 94 c2 84 d2 74 05 48 89 d8 5b c3 89 c6 e8 b4 85 8a
 RSP: 0018:ffffa8d7079a7c08 EFLAGS: 00010046
 RAX: 0000000000000000 RBX: 0000000000000202 RCX: ffffa8d7079a7bf8
 RDX: 0000000000000001 RSI: ffff93607c990000 RDI: 00000000000000c0
 RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffffc08c4dd8
 R10: 0000000000000000 R11: 0000000000000001 R12: 00000000000000c0
 R13: ffff93607c990000 R14: ffffffffc05a9740 R15: ffffa8d7079a7e98
 FS:  00007f1c6ee438c0(0000) GS:ffff93609f6c0000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00000000000000c0 CR3: 0000000819fca002 CR4: 00000000000606e0
 Call Trace:
  free_netdevs+0x4d/0xe0 [ib_core]
  ib_dealloc_device+0x51/0xb0 [ib_core]
  __mlx5_ib_add+0x5e/0x70 [mlx5_ib]
  mlx5_add_device+0x57/0xe0 [mlx5_core]
  mlx5_register_interface+0x85/0xc0 [mlx5_core]
  ? 0xffffffffc0474000
  do_one_initcall+0x4e/0x1d4
  ? _cond_resched+0x15/0x30
  ? kmem_cache_alloc_trace+0x15f/0x1c0
  do_init_module+0x5a/0x218
  load_module+0x186b/0x1e40
  ? m_show+0x1c0/0x1c0
  __do_sys_finit_module+0x94/0xe0
  do_syscall_64+0x5b/0x180
  entry_SYSCALL_64_after_hwframe+0x44/0xa9

Fixes: 8ceb1357b3 ("RDMA/device: Consolidate ib_device per_port data into one place")
Signed-off-by: Kamal Heib <kamalheib1@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-05-27 14:51:32 -03:00
..
addr.c 5.2 Merge Window second pull request 2019-05-14 20:56:31 -07:00
agent.c RDMA: Mark if destroy address handle is in a sleepable context 2018-12-19 16:28:03 -07:00
agent.h IB/mad: Add final OPA MAD processing 2015-06-12 14:49:18 -04:00
cache.c IB/core, ipoib: Do not overreact to SM LID change event 2019-05-07 16:06:03 -03:00
cgroup.c IB/core: Simplify rdma cgroup registration 2019-01-18 13:43:10 -07:00
cm_msgs.h RDMA: Use __packed annotation instead of __attribute__ ((packed)) 2019-03-25 21:14:12 -03:00
cm.c IB/cm: Reduce dependency on gid attribute ndev check 2019-05-03 11:10:02 -03:00
cma_configfs.c RDMA/cma: Move cma module specific functions to cma_priv.h 2018-11-22 11:57:33 -07:00
cma_priv.h IB/cma: Define option to set ack timeout and pack tos_set 2019-02-08 16:14:21 -07:00
cma.c RDMA/cma: Use rdma_read_gid_attr_ndev_rcu to access netdev 2019-05-03 11:10:03 -03:00
core_priv.h RDMA/core: Do not invoke init_port on compat devices 2019-05-03 10:41:23 -03:00
cq.c IB: Pass only ib_udata in function prototypes 2019-04-01 15:00:47 -03:00
device.c RDMA/core: Fix panic when port_data isn't initialized 2019-05-27 14:51:32 -03:00
fmr_pool.c RDMA: Start use ib_device_ops 2018-12-12 07:40:16 -07:00
iwcm.c RDMA: Get rid of iw_cm_verbs 2019-05-03 10:56:56 -03:00
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: move kdoc comments to functions 2019-02-05 15:40:41 -07:00
iwpm_util.c netlink: make validation more configurable for future strictness 2019-04-27 17:07:21 -04:00
iwpm_util.h RDMA/IWPM: Support no port mapping requirements 2019-02-04 16:26:02 -07:00
mad_priv.h RDMA: Use __packed annotation instead of __attribute__ ((packed)) 2019-03-25 21:14:12 -03:00
mad_rmpp.c RDMA: Mark if destroy address handle is in a sleepable context 2018-12-19 16:28:03 -07:00
mad_rmpp.h
mad.c IB/MAD: Add SMP details to MAD tracing 2019-03-27 15:52:01 -03:00
Makefile IB/{core,uverbs}: Move ib_umem_xxx functions from ib_core to ib_uverbs 2019-01-10 17:06:44 -07:00
mr_pool.c IB/core: add a simple MR pool 2016-05-13 13:37:18 -04:00
multicast.c IB/core, ipoib: Do not overreact to SM LID change event 2019-05-07 16:06:03 -03:00
netlink.c RDMA/cma: Remove CM_ID statistics provided by rdma-cm module 2019-02-05 15:30:33 -07:00
nldev.c 5.2 Merge Window second pull request 2019-05-14 20:56:31 -07:00
opa_smi.h RDMA: Start use ib_device_ops 2018-12-12 07:40:16 -07:00
packer.c IB/core: trivial prink cleanup. 2016-03-03 10:20:25 -05:00
rdma_core.c uverbs: Convert idr to XArray 2019-04-25 12:27:11 -03:00
rdma_core.h RDMA/core: Clear out the udata before error unwind 2019-05-27 14:35:26 -03:00
restrack.c XArray updates for 5.1-rc1 2019-03-11 20:06:18 -07:00
restrack.h RDMA/restrack: Prepare restrack_root to addition of extra fields per-type 2019-02-19 10:13:38 -07:00
roce_gid_mgmt.c IB/core: Fix oops in netdev_next_upper_dev_rcu() 2018-12-12 12:14:49 -05:00
rw.c IB/core: Remove ib_sg_dma_address() and ib_sg_dma_len() 2019-02-04 14:34:07 -07:00
sa_query.c 5.2 Merge Window pull request 2019-05-09 09:02:46 -07:00
sa.h RDMA/core: Annotate timeout as unsigned long 2018-10-16 13:34:01 -04:00
security.c RDMA/device: Consolidate ib_device per_port data into one place 2019-02-19 10:13:39 -07:00
smi.c IB: Add rdma_cap_ib_switch helper and use where appropriate 2015-07-14 13:20:08 -04:00
smi.h RDMA: Start use ib_device_ops 2018-12-12 07:40:16 -07:00
sysfs.c RDMA: Add EFA related definitions 2019-05-06 13:47:50 -03:00
ucm.c 5.2 Merge Window pull request 2019-05-09 09:02:46 -07:00
ucma.c *: convert stream-like files from nonseekable_open -> stream_open 2019-05-06 17:46:41 +03:00
ud_header.c IB/core: trivial prink cleanup. 2016-03-03 10:20:25 -05:00
umem_odp.c mm/mmu_notifier: convert user range->blockable to helper function 2019-05-14 09:47:49 -07:00
umem.c mm/gup: replace get_user_pages_longterm() with FOLL_LONGTERM 2019-05-14 09:47:45 -07:00
user_mad.c 5.2 Merge Window pull request 2019-05-09 09:02:46 -07:00
uverbs_cmd.c RDMA/uverbs: Pass udata on uverbs error unwind 2019-05-27 14:36:36 -03:00
uverbs_ioctl.c RDMA/uverbs: Initialize udata struct on destroy flows 2019-05-02 17:07:02 -03:00
uverbs_main.c 5.2 Merge Window pull request 2019-05-09 09:02:46 -07:00
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: When attrs.udata/ufile is available use that instead of uobject 2019-04-08 13:05:25 -03:00
uverbs_std_types_cq.c RDMA/uverbs: Pass udata on uverbs error unwind 2019-05-27 14:36:36 -03:00
uverbs_std_types_device.c IB/uverbs: Fix ioctl query port to consider device disassociation 2019-01-25 11:58:06 -07:00
uverbs_std_types_dm.c IB: When attrs.udata/ufile is available use that instead of uobject 2019-04-08 13:05:25 -03:00
uverbs_std_types_flow_action.c IB: When attrs.udata/ufile is available use that instead of uobject 2019-04-08 13:05:25 -03:00
uverbs_std_types_mr.c RDMA/core: Clear out the udata before error unwind 2019-05-27 14:35:26 -03:00
uverbs_std_types.c IB: Remove 'uobject->context' dependency in object destroy APIs 2019-04-01 14:59:35 -03:00
uverbs_uapi.c IB/mlx5: Introduce MLX5_IB_OBJECT_DEVX_ASYNC_CMD_FD 2019-01-29 13:32:43 -07:00
uverbs.h uverbs: Convert idr to XArray 2019-04-25 12:27:11 -03:00
verbs.c RDMA: Add EFA related definitions 2019-05-06 13:47:50 -03:00