Guanglei Li
a0138dc31d
RDS: IB: Fix null pointer issue
[ Upstream commit 2c0aa08631b86a4678dbc93b9caa5248014b4458 ]
Scenario:
1. Port down and do fail over
2. Ap do rds_bind syscall
PID: 47039 TASK: ffff89887e2fe640 CPU: 47 COMMAND: "kworker/u:6"
#0 [ffff898e35f159f0] machine_kexec at ffffffff8103abf9
#1 [ffff898e35f15a60] crash_kexec at ffffffff810b96e3
#2 [ffff898e35f15b30] oops_end at ffffffff8150f518
#3 [ffff898e35f15b60] no_context at ffffffff8104854c
#4 [ffff898e35f15ba0] __bad_area_nosemaphore at ffffffff81048675
#5 [ffff898e35f15bf0] bad_area_nosemaphore at ffffffff810487d3
#6 [ffff898e35f15c00] do_page_fault at ffffffff815120b8
#7 [ffff898e35f15d10] page_fault at ffffffff8150ea95
[exception RIP: unknown or invalid address]
RIP: 0000000000000000 RSP: ffff898e35f15dc8 RFLAGS: 00010282
RAX: 00000000fffffffe RBX: ffff889b77f6fc00 RCX:ffffffff81c99d88
RDX: 0000000000000000 RSI: ffff896019ee08e8 RDI:ffff889b77f6fc00
RBP: ffff898e35f15df0 R8: ffff896019ee08c8 R9:0000000000000000
R10: 0000000000000400 R11: 0000000000000000 R12:ffff896019ee08c0
R13: ffff889b77f6fe68 R14: ffffffff81c99d80 R15: ffffffffa022a1e0
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
#8 [ffff898e35f15dc8] cma_ndev_work_handler at ffffffffa022a228 [rdma_cm]
#9 [ffff898e35f15df8] process_one_work at ffffffff8108a7c6
#10 [ffff898e35f15e58] worker_thread at ffffffff8108bda0
#11 [ffff898e35f15ee8] kthread at ffffffff81090fe6
PID: 45659 TASK: ffff880d313d2500 CPU: 31 COMMAND: "oracle_45659_ap"
#0 [ffff881024ccfc98] __schedule at ffffffff8150bac4
#1 [ffff881024ccfd40] schedule at ffffffff8150c2cf
#2 [ffff881024ccfd50] __mutex_lock_slowpath at ffffffff8150cee7
#3 [ffff881024ccfdc0] mutex_lock at ffffffff8150cdeb
#4 [ffff881024ccfde0] rdma_destroy_id at ffffffffa022a027 [rdma_cm]
#5 [ffff881024ccfe10] rds_ib_laddr_check at ffffffffa0357857 [rds_rdma]
#6 [ffff881024ccfe50] rds_trans_get_preferred at ffffffffa0324c2a [rds]
#7 [ffff881024ccfe80] rds_bind at ffffffffa031d690 [rds]
#8 [ffff881024ccfeb0] sys_bind at ffffffff8142a670
PID: 45659 PID: 47039
rds_ib_laddr_check
/* create id_priv with a null event_handler */
rdma_create_id
rdma_bind_addr
cma_acquire_dev
/* add id_priv to cma_dev->id_list */
cma_attach_to_dev
cma_ndev_work_handler
/* event_hanlder is null */
id_priv->id.event_handler
Signed-off-by: Guanglei Li <guanglei.li@oracle.com>
Signed-off-by: Honglei Wang <honglei.wang@oracle.com>
Reviewed-by: Junxiao Bi <junxiao.bi@oracle.com>
Reviewed-by: Yanjun Zhu <yanjun.zhu@oracle.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Acked-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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2018-05-30 07:50:25 +02:00 |
| .. |
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af_rds.c
|
RDS: Add support for SO_TIMESTAMP for incoming messages
|
2016-03-02 14:13:17 -05:00 |
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bind.c
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rds; Reset rs->rs_bound_addr in rds_add_bound() failure path
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2018-04-13 19:48:08 +02:00 |
|
cong.c
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RDS: split out connection specific state from rds_connection to rds_conn_path
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2016-06-14 23:50:41 -07:00 |
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connection.c
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RDS: TCP: Enable multipath RDS for TCP
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2016-07-15 11:36:58 -07:00 |
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ib.c
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RDS: IB: Fix null pointer issue
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2018-05-30 07:50:25 +02:00 |
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ib.h
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RDS: add __printf format attribute to error reporting functions
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2016-08-08 16:16:21 -07:00 |
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ib_cm.c
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rds: ib: add error handle
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2017-10-08 10:26:10 +02:00 |
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ib_fmr.c
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RDS: IB: move FMR code to its own file
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2016-03-02 14:13:18 -05:00 |
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ib_frmr.c
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RDS: RDMA: fix the ib_map_mr_sg_zbva() argument
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2017-11-30 08:39:10 +00:00 |
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ib_mr.h
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RDS: IB: Support Fastreg MR (FRMR) memory registration mode
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2016-03-02 14:13:19 -05:00 |
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ib_rdma.c
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RDS: split out connection specific state from rds_connection to rds_conn_path
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2016-06-14 23:50:41 -07:00 |
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ib_recv.c
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RDS: TCP: make receive path use the rds_conn_path
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2016-07-01 16:45:17 -04:00 |
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ib_ring.c
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|
|
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ib_send.c
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RDS: RDMA: Fix the composite message user notification
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2017-10-08 10:26:02 +02:00 |
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ib_stats.c
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RDS: IB: add mr reused stats
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2016-03-02 14:13:19 -05:00 |
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ib_sysctl.c
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net: Convert uses of typedef ctl_table to struct ctl_table
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2013-06-13 02:36:09 -07:00 |
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info.c
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rds: fix an integer overflow test in rds_info_getsockopt()
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2015-08-03 15:20:16 -07:00 |
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info.h
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Kconfig
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RDS: Drop stale iWARP RDMA transport
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2016-03-02 14:13:17 -05:00 |
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loop.c
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RDS: TCP: Hooks to set up a single connection path
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2016-07-01 16:45:17 -04:00 |
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loop.h
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Makefile
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rds: debug messages are enabled by default
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2016-10-29 15:55:57 -04:00 |
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message.c
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RDS: TCP: Enable multipath RDS for TCP
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2016-07-15 11:36:58 -07:00 |
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page.c
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RDS: memory allocated must be align to 8
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2016-04-07 16:58:27 -04:00 |
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rdma.c
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RDS: null pointer dereference in rds_atomic_free_op
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2018-01-17 09:38:53 +01:00 |
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rdma_transport.c
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RDS: split out connection specific state from rds_connection to rds_conn_path
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2016-06-14 23:50:41 -07:00 |
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rdma_transport.h
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RDS: Drop stale iWARP RDMA transport
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2016-03-02 14:13:17 -05:00 |
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rds.h
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RDS: make message size limit compliant with spec
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2017-11-30 08:39:10 +00:00 |
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rds_single_path.h
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RDS: split out connection specific state from rds_connection to rds_conn_path
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2016-06-14 23:50:41 -07:00 |
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recv.c
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RDS: TCP: Enable multipath RDS for TCP
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2016-07-15 11:36:58 -07:00 |
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send.c
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rds: MP-RDS may use an invalid c_path
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2018-04-20 08:21:07 +02:00 |
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stats.c
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net/rds: zero last byte for strncpy
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2013-03-08 00:35:44 -05:00 |
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sysctl.c
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net: rds: fix coding style issues
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2016-06-18 21:34:09 -07:00 |
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tcp.c
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rds: tcp: atomically purge entries from rds_tcp_conn_list during netns delete
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2018-02-25 11:05:43 +01:00 |
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tcp.h
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rds: tcp: atomically purge entries from rds_tcp_conn_list during netns delete
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2018-02-25 11:05:43 +01:00 |
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tcp_connect.c
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RDS: TCP: Enable multipath RDS for TCP
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2016-07-15 11:36:58 -07:00 |
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tcp_listen.c
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rds: tcp: Sequence teardown of listen and acceptor sockets to avoid races
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2017-12-14 09:28:20 +01:00 |
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tcp_recv.c
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RDS: TCP: make receive path use the rds_conn_path
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2016-07-01 16:45:17 -04:00 |
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tcp_send.c
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RDS: TCP: Enable multipath RDS for TCP
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2016-07-15 11:36:58 -07:00 |
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tcp_stats.c
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threads.c
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RDS: TCP: Enable multipath RDS for TCP
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2016-07-15 11:36:58 -07:00 |
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transport.c
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net: rds: fix coding style issues
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2016-06-18 21:34:09 -07:00 |