Cong Wang b627f28d03 llc: properly handle dev_queue_xmit() return value ...

[ Upstream commit b85ab56c3f81c5a24b5a5213374f549df06430da ]

llc_conn_send_pdu() pushes the skb into write queue and
calls llc_conn_send_pdus() to flush them out. However, the
status of dev_queue_xmit() is not returned to caller,
in this case, llc_conn_state_process().

llc_conn_state_process() needs hold the skb no matter
success or failure, because it still uses it after that,
therefore we should hold skb before dev_queue_xmit() when
that skb is the one being processed by llc_conn_state_process().

For other callers, they can just pass NULL and ignore
the return value as they are.

Reported-by: Noam Rathaus <noamr@beyondsecurity.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.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>

2018-05-30 07:49:06 +02:00

..

af_llc.c

llc: better deal with too small mtu

2018-05-26 08:48:46 +02:00

Kconfig

…

llc_c_ac.c

llc: properly handle dev_queue_xmit() return value

2018-05-30 07:49:06 +02:00

llc_c_ev.c

…

llc_c_st.c

llc: Make llc_conn_ev_qfyr_t function pointer arrays const

2014-12-10 15:21:24 -05:00

llc_conn.c

llc: properly handle dev_queue_xmit() return value

2018-05-30 07:49:06 +02:00

llc_core.c

llc: make lock static

2014-01-03 20:56:48 -05:00

llc_if.c

net: llc: include linux/errno.h instead of asm/errno.h

2014-10-24 15:51:42 -04:00

llc_input.c

llc: Fix races between llc2 handler use and (un)registration

2012-08-14 16:52:02 -07:00

llc_output.c

llc: remove noisy WARN from llc_mac_hdr_init

2014-01-28 18:01:32 -08:00

llc_pdu.c

…

llc_proc.c

net: proc_fs: trivial: print UIDs as unsigned int

2013-08-15 14:37:46 -07:00

llc_s_ac.c

…

llc_s_ev.c

…

llc_s_st.c

llc: Make llc_sap_action_t function pointer arrays const

2014-12-10 15:21:24 -05:00

llc_sap.c

net/llc: avoid BUG_ON() in skb_orphan()

2017-02-26 11:07:49 +01:00

llc_station.c

llc2: Collapse remainder of state machine into simple if-else if-statement

2012-09-17 13:04:19 -04:00

Makefile

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sysctl_net_llc.c

net: llc: use correct size for sysctl timeout entries

2015-01-25 00:23:21 -08:00