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linux-stable/net/netfilter/ipvs
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Sishuai Gong 6650bebaa5 ipvs: fix racy memcpy in proc_do_sync_threshold 
[ Upstream commit 5310760af1 ]

When two threads run proc_do_sync_threshold() in parallel,
data races could happen between the two memcpy():

Thread-1			Thread-2
memcpy(val, valp, sizeof(val));
				memcpy(valp, val, sizeof(val));

This race might mess up the (struct ctl_table *) table->data,
so we add a mutex lock to serialize them.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Link: https://lore.kernel.org/netdev/B6988E90-0A1E-4B85-BF26-2DAF6D482433@gmail.com/
Signed-off-by: Sishuai Gong <sishuai.system@gmail.com>
Acked-by: Simon Horman <horms@kernel.org>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-08-23 17:32:46 +02:00
..
ip_vs_app.c ipvs: fix WARNING in ip_vs_app_net_cleanup() 2022-11-02 09:39:14 +01:00
ip_vs_conn.c ipvs: increase ip_vs_conn_tab_bits range for 64BIT 2023-07-19 16:36:55 +02:00
ip_vs_core.c ipvs: Remove {Enter,Leave}Function 2023-04-22 01:39:41 +02:00
ip_vs_ctl.c ipvs: fix racy memcpy in proc_do_sync_threshold 2023-08-23 17:32:46 +02:00
ip_vs_dh.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ip_vs_est.c ipvs: avoid kfree_rcu without 2nd arg 2023-02-02 14:02:01 +01:00
ip_vs_fo.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ip_vs_ftp.c netfilter: ipvs: do not printk on netns creation 2021-04-03 20:17:11 +02:00
ip_vs_lblc.c treewide: Convert del_timer*() to timer_shutdown*() 2022-12-25 13:38:09 -08:00
ip_vs_lblcr.c treewide: Convert del_timer*() to timer_shutdown*() 2022-12-25 13:38:09 -08:00
ip_vs_lc.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ip_vs_mh.c netfilter: ipvs: Use the bitmap API to allocate bitmaps 2022-07-21 00:55:39 +02:00
ip_vs_nfct.c netfilter: nf_conntrack_sip: fix expectation clash 2019-07-16 13:16:59 +02:00
ip_vs_nq.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ip_vs_ovf.c net: Fix various misspellings of "connect" 2019-10-28 13:41:59 -07:00
ip_vs_pe.c ipvs: don't ignore errors in case refcounting ip_vs module fails 2019-10-24 11:53:19 +02:00
ip_vs_pe_sip.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
ip_vs_proto.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ip_vs_proto_ah_esp.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
ip_vs_proto_sctp.c netfilter: ipvs: prefer skb_ensure_writable 2019-05-31 18:02:44 +02:00
ip_vs_proto_tcp.c ipvs: adjust the debug info in function set_tcp_state 2020-10-20 13:54:46 +02:00
ip_vs_proto_udp.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
ip_vs_rr.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ip_vs_sched.c ipvs: don't ignore errors in case refcounting ip_vs module fails 2019-10-24 11:53:19 +02:00
ip_vs_sed.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ip_vs_sh.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ip_vs_sync.c ipvs: Remove {Enter,Leave}Function 2023-04-22 01:39:41 +02:00
ip_vs_twos.c treewide: use get_random_u32_below() instead of deprecated function 2022-11-18 02:15:15 +01:00
ip_vs_wlc.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ip_vs_wrr.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
ip_vs_xmit.c ipvs: align inner_mac_header for encapsulation 2023-06-19 16:01:07 +02:00
Kconfig ipvs: increase ip_vs_conn_tab_bits range for 64BIT 2023-07-19 16:36:55 +02:00
Makefile ipvs: add weighted random twos choice algorithm 2021-01-26 01:09:46 +01:00