evie/android_kernel_oneplus_msm8998
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions
android_kernel_oneplus_msm8998/net/ipv6
History
WANG Cong faf4586056 ipv6: fix a potential deadlock in do_ipv6_setsockopt() 
commit 8651be8f14a12d24f203f283601d9b0418c389ff upstream.

Baozeng reported this deadlock case:

       CPU0                    CPU1
       ----                    ----
  lock([  165.136033] sk_lock-AF_INET6);
                               lock([  165.136033] rtnl_mutex);
                               lock([  165.136033] sk_lock-AF_INET6);
  lock([  165.136033] rtnl_mutex);

Similar to commit 87e9f03159
("ipv4: fix a potential deadlock in mcast getsockopt() path")
this is due to we still have a case, ipv6_sock_mc_close(),
where we acquire sk_lock before rtnl_lock. Close this deadlock
with the similar solution, that is always acquire rtnl lock first.

Fixes: baf606d9c9 ("ipv4,ipv6: grab rtnl before locking the socket")
Reported-by: Baozeng Ding <sploving1@gmail.com>
Tested-by: Baozeng Ding <sploving1@gmail.com>
Cc: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Reviewed-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Zubin Mithra <zsm@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-16 19:45:05 +02:00
..
netfilter netfilter: x_tables: enforce nul-terminated table name from getsockopt GET_ENTRIES 2019-03-23 08:44:29 +01:00
addrconf.c net: fix IPv6 prefix route residue 2019-02-23 09:05:13 +01:00
addrconf_core.c ipv6: change ipv6_stub_impl.ipv6_dst_lookup to take net argument 2015-07-31 15:21:30 -07:00
addrlabel.c ipv6/addrlabel: fix ip6addrlbl_get() 2015-12-22 15:57:54 -05:00
af_inet6.c ipv6: Consider sk_bound_dev_if when binding a socket to an address 2019-02-06 19:43:06 +01:00
ah6.c ipsec: check return value of skb_to_sgvec always 2018-04-13 19:50:23 +02:00
anycast.c ipv6: coding style: comparison for equality with NULL 2015-03-31 13:51:54 -04:00
datagram.c ip: on queued skb use skb_header_pointer instead of pskb_may_pull 2019-01-26 09:42:49 +01:00
esp6.c ipsec: check return value of skb_to_sgvec always 2018-04-13 19:50:23 +02:00
exthdrs.c ipv6: add complete rcu protection around np->opt 2015-12-02 23:37:16 -05:00
exthdrs_core.c ipv6: re-enable fragment header matching in ipv6_find_hdr 2016-04-20 15:41:59 +09:00
exthdrs_offload.c ipv6: fix exthdrs offload registration in out_rt path 2015-09-02 15:31:00 -07:00
fib6_rules.c ipv6: Do not leak throw route references 2017-07-05 14:37:14 +02:00
icmp.c ipv6: fix endianness error in icmpv6_err 2019-04-03 06:23:24 +02:00
ila.c dst: Pass net into dst->output 2015-10-08 04:27:03 -07:00
inet6_connection_sock.c ipv6: kill sk_dst_lock 2015-12-03 11:32:06 -05:00
inet6_hashtables.c net: SO_INCOMING_CPU setsockopt() support 2015-10-12 19:28:20 -07:00
ip6_checksum.c udplite: fix partial checksum initialization 2018-03-11 16:19:46 +01:00
ip6_fib.c ipv6: fix typo in fib6_net_exit() 2017-09-27 11:00:12 +02:00
ip6_flowlabel.c ipv6: invert flowlabel sharing check in process and user mode 2019-05-16 19:44:59 +02:00
ip6_gre.c ip6_gre: better validate user provided tunnel names 2018-04-13 19:50:26 +02:00
ip6_icmp.c ipv6: White-space cleansing : Line Layouts 2014-08-24 22:37:52 -07:00
ip6_input.c netfilter: Pass net into okfn 2015-09-17 17:18:37 -07:00
ip6_offload.c gso_segment: Reset skb->mac_len after modifying network header 2018-09-29 03:08:52 -07:00
ip6_offload.h
ip6_output.c ipv6: Fix dangling pointer when ipv6 fragment 2019-04-27 09:33:54 +02:00
ip6_tunnel.c ip6_tunnel: Match to ARPHRD_TUNNEL6 for dev type 2019-04-27 09:33:55 +02:00
ip6_udp_tunnel.c ipv6: explicitly initialize udp6_addr in udp_sock_create6() 2019-01-13 10:05:27 +01:00
ip6_vti.c vti6: flush x-netns xfrm cache when vti interface is removed 2018-11-10 07:41:38 -08:00
ip6mr.c ip6mr: Do not call __IP6_INC_STATS() from preemptible context 2019-03-23 08:44:24 +01:00
ipcomp6.c ipv6: White-space cleansing : Structure layouts 2014-08-24 22:37:52 -07:00
ipv6_sockglue.c ipv6: fix a potential deadlock in do_ipv6_setsockopt() 2019-05-16 19:45:05 +02:00
Kconfig ipv4+ipv6: Make INET*_ESP select CRYPTO_ECHAINIV 2018-08-15 17:42:05 +02:00
Makefile net: Identifier Locator Addressing module 2015-08-17 21:33:06 -07:00
mcast.c ipv6: fix a potential deadlock in do_ipv6_setsockopt() 2019-05-16 19:45:05 +02:00
mcast_snoop.c net: fix wrong skb_get() usage / crash in IGMP/MLD parsing code 2015-08-13 17:08:39 -07:00
mip6.c ipv6: use ktime_t for internal timestamps 2015-10-05 03:16:47 -07:00
ndisc.c ipv6/ndisc: Preserve IPv6 control buffer if protocol error handlers are called 2018-11-10 07:41:41 -08:00
netfilter.c ipv6: Pass struct net into ip6_route_me_harder 2015-09-29 20:21:32 +02:00
output_core.c ipv6: accept 64k - 1 packet length in ip6_find_1stfragopt() 2017-09-27 11:00:10 +02:00
ping.c net: ping: do not abuse udp_poll() 2017-06-14 13:16:19 +02:00
proc.c inet: frags: break the 2GB limit for frags storage 2019-02-08 11:25:31 +01:00
protocol.c net: Export inet_offloads and inet6_offloads 2014-09-19 17:15:31 -04:00
raw.c net: ping: do not abuse udp_poll() 2017-06-14 13:16:19 +02:00
reassembly.c ip: use rb trees for IP frag queue. 2019-02-08 11:25:32 +01:00
route.c net: Set rtm_table to RT_TABLE_COMPAT for ipv6 for tables > 255 2019-03-23 08:44:30 +01:00
sit.c ipv6: sit: reset ip header pointer in ipip6_rcv 2019-04-27 09:33:54 +02:00
syncookies.c ipv4: ipv6: initialize treq->txhash in cookie_v[46]_check() 2017-08-11 09:08:51 -07:00
sysctl_net_ipv6.c ipv6: Implement different admin modes for automatic flow labels 2015-07-31 17:07:11 -07:00
tcp_ipv6.c tcp: do not use ipv6 header for ipv4 flow 2019-04-03 06:23:25 +02:00
tcpv6_offload.c tcp: cleanup static functions 2015-02-28 16:56:51 -05:00
tunnel6.c ipv6: fix tunnel error handling 2015-11-03 10:52:13 -05:00
udp.c udplite: call proper backlog handlers 2019-03-23 08:44:29 +01:00
udp_impl.h udplite: call proper backlog handlers 2019-03-23 08:44:29 +01:00
udp_offload.c net: avoid skb_warn_bad_offload false positives on UFO 2017-08-12 19:29:08 -07:00
udplite.c udplite: call proper backlog handlers 2019-03-23 08:44:29 +01:00
xfrm6_input.c netfilter: Pass struct net into the netfilter hooks 2015-09-17 17:18:37 -07:00
xfrm6_mode_beet.c xfrm: simplify xfrm_address_t use 2015-03-31 13:58:35 -04:00
xfrm6_mode_ro.c ipv6: xfrm: Handle errors reported by xfrm6_find_1stfragopt() 2017-06-14 13:16:19 +02:00
xfrm6_mode_transport.c ipv6: xfrm: Handle errors reported by xfrm6_find_1stfragopt() 2017-06-14 13:16:19 +02:00
xfrm6_mode_tunnel.c ipv6: update skb->csum when CE mark is propagated 2016-01-31 11:29:01 -08:00
xfrm6_output.c xfrm6: call kfree_skb when skb is toobig 2018-11-10 07:41:32 -08:00
xfrm6_policy.c xfrm6: avoid potential infinite loop in _decode_session6() 2018-07-03 11:21:24 +02:00
xfrm6_protocol.c xfrm6: Properly handle unsupported protocols 2014-05-06 07:08:38 +02:00
xfrm6_state.c ipv6: White-space cleansing : Line Layouts 2014-08-24 22:37:52 -07:00
xfrm6_tunnel.c xfrm6_tunnel: Fix spi check in __xfrm6_tunnel_alloc_spi 2019-02-20 10:13:10 +01:00