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98f706de44
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Kuniyuki Iwashima 98f706de44 af_unix: Define locking order for U_LOCK_SECOND in unix_stream_connect(). 
While a SOCK_(STREAM|SEQPACKET) socket connect()s to another, we hold
two locks of them by unix_state_lock() and unix_state_lock_nested() in
unix_stream_connect().

Before unix_state_lock_nested(), the following is guaranteed by checking
sk->sk_state:

  1. The first socket is TCP_LISTEN
  2. The second socket is not the first one
  3. Simultaneous connect() must fail

So, the client state can be TCP_CLOSE or TCP_LISTEN or TCP_ESTABLISHED.

Let's define the expected states as unix_state_lock_cmp_fn() instead of
using unix_state_lock_nested().

Note that 2. is detected by debug_spin_lock_before() and 3. cannot be
expressed as lock_cmp_fn.

Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-06-25 11:10:18 +02:00
..
6lowpan
9p Two fixes headed to stable trees: 2024-05-29 09:25:15 -07:00
802
8021q net: annotate writes on dev->mtu from ndo_change_mtu() 2024-05-07 16:19:14 -07:00
appletalk Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-05-09 10:01:01 -07:00
atm atm: clean up a put_user() calls 2024-06-14 19:08:50 -07:00
ax25 ax25: Replace kfree() in ax25_dev_free() with ax25_dev_put() 2024-06-01 15:49:42 -07:00
batman-adv tracing/treewide: Remove second parameter of __assign_str() 2024-05-22 20:14:47 -04:00
bluetooth Bluetooth: fix connection setup in l2cap_connect 2024-06-10 09:48:30 -04:00
bpf net: Reference bpf_redirect_info via task_struct on PREEMPT_RT. 2024-06-24 16:41:24 -07:00
bridge netfilter: br_netfilter: Use nested-BH locking for brnf_frag_data_storage. 2024-06-24 16:41:23 -07:00
caif net: caif: remove unused structs 2024-06-05 10:18:06 +01:00
can can: isotp: remove ISO 15675-2 specification version where possible 2024-06-20 11:52:56 +02:00
ceph
core net: Reference bpf_redirect_info via task_struct on PREEMPT_RT. 2024-06-24 16:41:24 -07:00
dcb
dccp net: tcp: un-pin the tw_timer 2024-06-10 11:54:18 +01:00
devlink devlink: Constify the 'table_ops' parameter of devl_dpipe_table_register() 2024-06-05 10:24:57 +01:00
dns_resolver
dsa net: dsa: Fix typo in NET_DSA_TAG_RTL4_A Kconfig 2024-06-11 19:24:11 -07:00
ethernet netkit: Fix pkt_type override upon netkit pass verdict 2024-05-25 10:48:57 -07:00
ethtool Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-06-06 12:06:56 -07:00
handshake net/handshake: remove redundant assignment to variable ret 2024-04-16 17:14:55 -07:00
hsr net: hsr: cosmetic: Remove extra white space 2024-06-19 17:32:57 -07:00
ieee802154 bpf-next-for-netdev 2024-05-28 07:27:29 -07:00
ife
ipv4 net/ipv4: Use nested-BH locking for ipv4_tcp_sk. 2024-06-24 16:41:22 -07:00
ipv6 seg6: Use nested-BH locking for seg6_bpf_srh_states. 2024-06-24 16:41:23 -07:00
iucv more s390 updates for 6.10 merge window 2024-05-21 12:09:36 -07:00
kcm
key
l2tp l2tp: replace hlist with simple list for per-tunnel session list 2024-06-21 11:33:34 +01:00
l3mdev
lapb
llc net: change proto and proto_ops accept type 2024-05-13 18:19:09 -06:00
mac80211 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-06-20 13:49:59 -07:00
mac802154
mctp
mpls net: Remove the now superfluous sentinel elements from ctl_table array 2024-05-03 13:29:41 +01:00
mptcp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-06-13 13:13:46 -07:00
ncsi net/ncsi: Fix the multi thread manner of NCSI driver 2024-06-01 16:21:44 -07:00
netfilter Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-06-20 13:49:59 -07:00
netlabel netlabel: fix RCU annotation for IPv4 options on socket creation 2024-05-13 14:58:12 -07:00
netlink net: netlink: remove the cb_mutex "injection" from netlink core 2024-06-10 13:15:40 +01:00
netrom netrom: Fix a memory leak in nr_heartbeat_expiry() 2024-06-17 13:06:23 +01:00
nfc Quite smaller than usual. Notably it includes the fix for the unix 2024-05-23 12:49:37 -07:00
nsh nsh: Restore skb->{protocol,data,mac_header} for outer header in nsh_gso_segment(). 2024-04-26 12:20:01 +02:00
openvswitch openvswitch: Remove generic .ndo_get_stats64 2024-06-04 16:06:37 +02:00
packet af_packet: use sk_skb_reason_drop to free rx packets 2024-06-19 12:44:22 +01:00
phonet net: change proto and proto_ops accept type 2024-05-13 18:19:09 -06:00
psample ip_tunnel: convert __be16 tunnel flags to bitmaps 2024-04-01 10:49:28 +01:00
qrtr net: qrtr: ns: Ignore ENODEV failures in ns 2024-06-14 13:17:21 +02:00
rds rds:Simplify the allocation of slab caches 2024-06-19 10:47:40 +01:00
rfkill net: rfkill: gpio: Convert to platform remove callback returning void 2024-03-25 15:40:22 +01:00
rose net: change proto and proto_ops accept type 2024-05-13 18:19:09 -06:00
rxrpc Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-05-09 10:01:01 -07:00
sched Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-06-20 13:49:59 -07:00
sctp net: change proto and proto_ops accept type 2024-05-13 18:19:09 -06:00
smc net/smc: Introduce IPPROTO_SMC 2024-06-17 13:14:09 +01:00
strparser
sunrpc NFS client bugfixes for Linux 6.10 2024-06-13 11:07:32 -07:00
switchdev net: bridge: switchdev: Improve error message for port_obj_add/del functions 2024-05-08 12:19:12 +01:00
tipc tipc: force a dst refcount before doing decryption 2024-06-18 15:08:57 +02:00
tls tcp: add a helper for setting EOR on tail skb 2024-06-04 13:23:30 +02:00
unix af_unix: Define locking order for U_LOCK_SECOND in unix_stream_connect(). 2024-06-25 11:10:18 +02:00
vmw_vsock virtio: features, fixes, cleanups 2024-05-23 12:04:36 -07:00
wireless Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2024-06-20 13:49:59 -07:00
x25 net: change proto and proto_ops accept type 2024-05-13 18:19:09 -06:00
xdp net: Move per-CPU flush-lists to bpf_net_context on PREEMPT_RT. 2024-06-24 16:41:24 -07:00
xfrm net: fix __dst_negative_advice() race 2024-05-29 17:34:49 -07:00
compat.c
devres.c
Kconfig net: allow rps/rfs related configs to be switched 2024-06-06 13:18:48 +02:00
Kconfig.debug
Makefile
socket.c net: have do_accept() take a struct proto_accept_arg argument 2024-05-13 18:19:19 -06:00
sysctl_net.c sysctl: treewide: constify argument ctl_table_root::permissions(table) 2024-04-24 09:43:54 +02:00