linzhang 0908cf4dfe net: llc: add lock_sock in llc_ui_bind to avoid a race condition ... There is a race condition in llc_ui_bind if two or more processes/threads try to bind a same socket. If more processes/threads bind a same socket success that will lead to two problems, one is this action is not what we expected, another is will lead to kernel in unstable status or oops(in my simple test case, cause llc2.ko can't unload). The current code is test SOCK_ZAPPED bit to avoid a process to bind a same socket twice but that is can't avoid more processes/threads try to bind a same socket at the same time. So, add lock_sock in llc_ui_bind like others, such as llc_ui_connect. Signed-off-by: Lin Zhang <xiaolou4617@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2017-05-26 14:20:29 -04:00
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af_llc.c	net: llc: add lock_sock in llc_ui_bind to avoid a race condition	2017-05-26 14:20:29 -04:00
Kconfig
llc_c_ac.c
llc_c_ev.c
llc_c_st.c
llc_conn.c	mm: Rename SLAB_DESTROY_BY_RCU to SLAB_TYPESAFE_BY_RCU	2017-04-18 11:42:36 -07:00
llc_core.c
llc_if.c
llc_input.c
llc_output.c
llc_pdu.c
llc_proc.c	sock: tigthen lockdep checks for sock_owned_by_user	2016-04-13 22:37:20 -04:00
llc_s_ac.c
llc_s_ev.c
llc_s_st.c
llc_sap.c	mm: Rename SLAB_DESTROY_BY_RCU to SLAB_TYPESAFE_BY_RCU	2017-04-18 11:42:36 -07:00
llc_station.c
Makefile
sysctl_net_llc.c