f69275de10
[ Upstream commit 7ae0c649c47f1c5d2db8cee6dd75855970af1669 ]
If the rds_sock is not added to the bind_hash_table, we must
reset rs_bound_addr so that rds_remove_bound will not trip on
this rds_sock.
rds_add_bound() does a rds_sock_put() in this failure path, so
failing to reset rs_bound_addr will result in a socket refcount
bug, and will trigger a WARN_ON with the stack shown below when
the application subsequently tries to close the PF_RDS socket.
WARNING: CPU: 20 PID: 19499 at net/rds/af_rds.c:496 \
rds_sock_destruct+0x15/0x30 [rds]
:
__sk_destruct+0x21/0x190
rds_remove_bound.part.13+0xb6/0x140 [rds]
rds_release+0x71/0x120 [rds]
sock_release+0x1a/0x70
sock_close+0xe/0x20
__fput+0xd5/0x210
task_work_run+0x82/0xa0
do_exit+0x2ce/0xb30
? syscall_trace_enter+0x1cc/0x2b0
do_group_exit+0x39/0xa0
SyS_exit_group+0x10/0x10
do_syscall_64+0x61/0x1a0
Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.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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|---|---|---|
| .. | ||
| af_rds.c | ||
| bind.c | ||
| cong.c | ||
| connection.c | ||
| ib.c | ||
| ib.h | ||
| ib_cm.c | ||
| ib_rdma.c | ||
| ib_recv.c | ||
| ib_ring.c | ||
| ib_send.c | ||
| ib_stats.c | ||
| ib_sysctl.c | ||
| info.c | ||
| info.h | ||
| iw.c | ||
| iw.h | ||
| iw_cm.c | ||
| iw_rdma.c | ||
| iw_recv.c | ||
| iw_ring.c | ||
| iw_send.c | ||
| iw_stats.c | ||
| iw_sysctl.c | ||
| Kconfig | ||
| loop.c | ||
| loop.h | ||
| Makefile | ||
| message.c | ||
| page.c | ||
| rdma.c | ||
| rdma_transport.c | ||
| rdma_transport.h | ||
| rds.h | ||
| recv.c | ||
| send.c | ||
| stats.c | ||
| sysctl.c | ||
| tcp.c | ||
| tcp.h | ||
| tcp_connect.c | ||
| tcp_listen.c | ||
| tcp_recv.c | ||
| tcp_send.c | ||
| tcp_stats.c | ||
| threads.c | ||
| transport.c | ||