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selftests: mptcp_join.sh: ADD_ADDR timeout issue #139

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matttbe opened this issue Jan 19, 2021 · 0 comments

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matttbe commented Jan 19, 2021

As reported by @mjmartineau and my CI but also confirmed by @geliangtang, ADD_ADDR timeout test can be unstable:

 12 signal address, ADD_ADDR timeout  syn[ ok ] - synack[ ok ] - ack[ ok ]
                                     add[fail] got 2 ADD_ADDR[s] expected 4
  - echo  [ ok ]
 Server ns stats
 MPTcpExtMPCapableSYNRX          1               0.0
 MPTcpExtMPCapableACKRX          1               0.0
 MPTcpExtMPJoinSynRx             1               0.0
 MPTcpExtMPJoinAckRx             1               0.0
 Client ns stats
 MPTcpExtMPJoinSynAckRx          1               0.0
 MPTcpExtAddAddr                 2               0.0
 13 remove single subflow             syn[ ok ] - synack[ ok ] - ack[ ok ]
                                      rm [ ok ] - sf    [ ok ]

@geliangtang is already looking at that but easier to track this with a ticket.

The text was updated successfully, but these errors were encountered:

matttbe added the bug label

matttbe assigned geliangtang

matttbe pushed a commit that referenced this issue


          mptcp: send ack for every add_addr

581ac72

This patch changes the sending ACK conditions for the ADD_ADDR, send an
ACK packet for any ADD_ADDR, not just when ipv6 addresses or port
numbers are included.

Closes: #139
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>

jenkins-tessares closed this as completed in

0da285e

jenkins-tessares pushed a commit that referenced this issue


          mptcp: send ack for every add_addr

9d015f6

This patch changes the sending ACK conditions for the ADD_ADDR, send an
ACK packet for any ADD_ADDR, not just when ipv6 addresses or port
numbers are included.

Closes: #139
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>

matttbe mentioned this issue

Packetdrill: ADD_ADDR are now sent sooner #144

Closed

matttbe added a commit to matttbe/packetdrill that referenced this issue


          mptcp: ADD_ADDR are now sent sooner

A recent modification of the kernel changes the way ADD_ADDR are sent.
See: multipath-tcp/mptcp_net-next#139

In consequences, we have to adapt our tests to have these ADD_ADDR sent
earlier, ASAP in fact. We now make sure ADD_ADDR and ADD_ADDR echo are
properly sent before injecting MP_JOIN SYN and SYN+ACK or sending data.

Closes: multipath-tcp/mptcp_net-next#144
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>

matttbe mentioned this issue

mptcp: ADD_ADDR are now sent sooner multipath-tcp/packetdrill#34

Merged

jenkins-tessares pushed a commit that referenced this issue


          mptcp: send ack for every add_addr

This patch changes the sending ACK conditions for the ADD_ADDR, send an
ACK packet for any ADD_ADDR, not just when ipv6 addresses or port
numbers are included.

Closes: #139
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>

matttbe added a commit to matttbe/packetdrill that referenced this issue


          mptcp: ADD_ADDR are now sent sooner

c102506

A recent modification of the kernel changes the way ADD_ADDR are sent.
See: multipath-tcp/mptcp_net-next#139

In consequences, we have to adapt our tests to have these ADD_ADDR sent
earlier, ASAP in fact. We now make sure ADD_ADDR and ADD_ADDR echo are
properly sent before injecting MP_JOIN SYN and SYN+ACK or sending data.

Closes: multipath-tcp/mptcp_net-next#144
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>

jenkins-tessares pushed a commit that referenced this issue


          mptcp: send ack for every add_addr

81bad9b

This patch changes the sending ACK conditions for the ADD_ADDR, send an
ACK packet for any ADD_ADDR, not just when ipv6 addresses or port
numbers are included.

Closes: #139
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>

matttbe added a commit to matttbe/packetdrill that referenced this issue


          mptcp: ADD_ADDR are now sent sooner

5b9c921

A recent modification of the kernel changes the way ADD_ADDR are sent.
See: multipath-tcp/mptcp_net-next#139

In consequences, we have to adapt our tests to have these ADD_ADDR sent
earlier, ASAP in fact. We now make sure ADD_ADDR and ADD_ADDR echo are
properly sent before injecting MP_JOIN SYN and SYN+ACK or sending data.

Closes: multipath-tcp/mptcp_net-next#144
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>

jenkins-tessares pushed a commit that referenced this issue


          mptcp: send ack for every add_addr

45f2da0

This patch changes the sending ACK conditions for the ADD_ADDR, send an
ACK packet for any ADD_ADDR, not just when ipv6 addresses or port
numbers are included.

Closes: #139
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>

jenkins-tessares pushed a commit that referenced this issue


          mptcp: send ack for every add_addr

f5bebd7

This patch changes the sending ACK conditions for the ADD_ADDR, send an
ACK packet for any ADD_ADDR, not just when ipv6 addresses or port
numbers are included.

Closes: #139
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>

jenkins-tessares pushed a commit that referenced this issue


          mptcp: send ack for every add_addr

efd768a

This patch changes the sending ACK conditions for the ADD_ADDR, send an
ACK packet for any ADD_ADDR, not just when ipv6 addresses or port
numbers are included.

Closes: #139
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>

matttbe pushed a commit that referenced this issue


          mptcp: send ack for every add_addr

d4b2558

This patch changes the sending ACK conditions for the ADD_ADDR, send an
ACK packet for any ADD_ADDR, not just when ipv6 addresses or port
numbers are included.

Closes: #139
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>

matttbe pushed a commit that referenced this issue


          mptcp: send ack for every add_addr

1802c95

This patch changes the sending ACK conditions for the ADD_ADDR, send an
ACK packet for any ADD_ADDR, not just when ipv6 addresses or port
numbers are included.

Closes: #139
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>

matttbe pushed a commit that referenced this issue


          mptcp: send ack for every add_addr

86c11e6

This patch changes the sending ACK conditions for the ADD_ADDR, send an
ACK packet for any ADD_ADDR, not just when ipv6 addresses or port
numbers are included.

Closes: #139
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>

matttbe pushed a commit that referenced this issue


          mptcp: send ack for every add_addr

4f32629

This patch changes the sending ACK conditions for the ADD_ADDR, send an
ACK packet for any ADD_ADDR, not just when ipv6 addresses or port
numbers are included.

Closes: #139
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>

jenkins-tessares pushed a commit that referenced this issue


          mptcp: send ack for every add_addr

ff8b502

This patch changes the sending ACK conditions for the ADD_ADDR, send an
ACK packet for any ADD_ADDR, not just when ipv6 addresses or port
numbers are included.

Closes: #139
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>

jenkins-tessares pushed a commit that referenced this issue


          mptcp: send ack for every add_addr

3b77706

This patch changes the sending ACK conditions for the ADD_ADDR, send an
ACK packet for any ADD_ADDR, not just when ipv6 addresses or port
numbers are included.

Closes: #139
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>

jenkins-tessares pushed a commit that referenced this issue


          mptcp: send ack for every add_addr

ffdf266

This patch changes the sending ACK conditions for the ADD_ADDR, send an
ACK packet for any ADD_ADDR, not just when ipv6 addresses or port
numbers are included.

Closes: #139
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>

jenkins-tessares pushed a commit that referenced this issue


          mptcp: send ack for every add_addr

0635a77

This patch changes the sending ACK conditions for the ADD_ADDR, send an
ACK packet for any ADD_ADDR, not just when ipv6 addresses or port
numbers are included.

Closes: #139
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>

jenkins-tessares pushed a commit that referenced this issue


          mptcp: send ack for every add_addr

b8a2bf1

This patch changes the sending ACK conditions for the ADD_ADDR, send an
ACK packet for any ADD_ADDR, not just when ipv6 addresses or port
numbers are included.

Closes: #139
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>

jenkins-tessares pushed a commit that referenced this issue


          mptcp: send ack for every add_addr

b8cda5a

This patch changes the sending ACK conditions for the ADD_ADDR, send an
ACK packet for any ADD_ADDR, not just when ipv6 addresses or port
numbers are included.

Closes: #139
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>

fengguang pushed a commit to 0day-ci/linux that referenced this issue


          mptcp: send ack for every add_addr

7d672ea

This patch changes the sending ACK conditions for the ADD_ADDR, send an
ACK packet for any ADD_ADDR, not just when ipv6 addresses or port
numbers are included.

Closes: multipath-tcp/mptcp_net-next#139
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>

jenkins-tessares pushed a commit that referenced this issue


          mptcp: send ack for every add_addr

f04f062

This patch changes the sending ACK conditions for the ADD_ADDR, send an
ACK packet for any ADD_ADDR, not just when ipv6 addresses or port
numbers are included.

Closes: #139
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>

alaahl pushed a commit to alaahl/linux that referenced this issue


          mptcp: send ack for every add_addr

b5a7acd

This patch changes the sending ACK conditions for the ADD_ADDR, send an
ACK packet for any ADD_ADDR, not just when ipv6 addresses or port
numbers are included.

Closes: multipath-tcp/mptcp_net-next#139
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

dcaratti mentioned this issue

sporadic failure of mptcp_join.sh selftest 13 #112

Closed

Whissi pushed a commit to Whissi/linux-stable that referenced this issue


          mptcp: send ack for every add_addr

00f7d50

[ Upstream commit b5a7acd ]

This patch changes the sending ACK conditions for the ADD_ADDR, send an
ACK packet for any ADD_ADDR, not just when ipv6 addresses or port
numbers are included.

Closes: multipath-tcp/mptcp_net-next#139
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

jackpot51 pushed a commit to pop-os/linux that referenced this issue


          mptcp: send ack for every add_addr

a32cec4

BugLink: https://bugs.launchpad.net/bugs/1921710

[ Upstream commit b5a7acd ]

This patch changes the sending ACK conditions for the ADD_ADDR, send an
ACK packet for any ADD_ADDR, not just when ipv6 addresses or port
numbers are included.

Closes: multipath-tcp/mptcp_net-next#139
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Andrea Righi <andrea.righi@canonical.com>

fengguang pushed a commit to 0day-ci/linux that referenced this issue


          mptcp: send ack for every add_addr

783b334

This patch changes the sending ACK conditions for the ADD_ADDR, send an
ACK packet for any ADD_ADDR, not just when ipv6 addresses or port
numbers are included.

Closes: multipath-tcp/mptcp_net-next#139
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>

jenkins-tessares pushed a commit that referenced this issue


          selftests/bpf: Bump internal send_signal/send_signal_tracepoint timeout

639de43

The send_signal/send_signal_tracepoint is pretty flaky, with at least
one failure in every ten runs on a few attempts I've tried it:
  > test_send_signal_common:PASS:pipe_c2p 0 nsec
  > test_send_signal_common:PASS:pipe_p2c 0 nsec
  > test_send_signal_common:PASS:fork 0 nsec
  > test_send_signal_common:PASS:skel_open_and_load 0 nsec
  > test_send_signal_common:PASS:skel_attach 0 nsec
  > test_send_signal_common:PASS:pipe_read 0 nsec
  > test_send_signal_common:PASS:pipe_write 0 nsec
  > test_send_signal_common:PASS:reading pipe 0 nsec
  > test_send_signal_common:PASS:reading pipe error: size 0 0 nsec
  > test_send_signal_common:FAIL:incorrect result unexpected incorrect result: actual 48 != expected 50
  > test_send_signal_common:PASS:pipe_write 0 nsec
  > #139/1   send_signal/send_signal_tracepoint:FAIL

The reason does not appear to be a correctness issue in the strict
sense. Rather, we merely do not receive the signal we are waiting for
within the provided timeout.
Let's bump the timeout by a factor of ten. With that change I have not
been able to reproduce the failure in 150+ iterations. I am also sneaking
in a small simplification to the test_progs test selection logic.

Signed-off-by: Daniel Müller <deso@posteo.net>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20220727182955.4044988-1-deso@posteo.net

jenkins-tessares pushed a commit that referenced this issue


          wifi: mt7601u: fix an integer underflow

803f317

Fix an integer underflow that leads to a null pointer dereference in
'mt7601u_rx_skb_from_seg()'. The variable 'dma_len' in the URB packet
could be manipulated, which could trigger an integer underflow of
'seg_len' in 'mt7601u_rx_process_seg()'. This underflow subsequently
causes the 'bad_frame' checks in 'mt7601u_rx_skb_from_seg()' to be
bypassed, eventually leading to a dereference of the pointer 'p', which
is a null pointer.

Ensure that 'dma_len' is greater than 'min_seg_len'.

Found by a modified version of syzkaller.

KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 0 PID: 12 Comm: ksoftirqd/0 Tainted: G        W  O      5.14.0+
#139
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
rel-1.12.1-0-ga5cab58e9a3f-prebuilt.qemu.org 04/01/2014
RIP: 0010:skb_add_rx_frag+0x143/0x370
Code: e2 07 83 c2 03 38 ca 7c 08 84 c9 0f 85 86 01 00 00 4c 8d 7d 08 44
89 68 08 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48 c1 ea 03 <80> 3c 02
00 0f 85 cd 01 00 00 48 8b 45 08 a8 01 0f 85 3d 01 00 00
RSP: 0018:ffffc900000cfc90 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff888115520dc0 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffff8881118430c0 RDI: ffff8881118430f8
RBP: 0000000000000000 R08: 0000000000000e09 R09: 0000000000000010
R10: ffff888111843017 R11: ffffed1022308602 R12: 0000000000000000
R13: 0000000000000e09 R14: 0000000000000010 R15: 0000000000000008
FS:  0000000000000000(0000) GS:ffff88811a800000(0000)
knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000004035af40 CR3: 00000001157f2000 CR4: 0000000000750ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
 mt7601u_rx_tasklet+0xc73/0x1270
 ? mt7601u_submit_rx_buf.isra.0+0x510/0x510
 ? tasklet_action_common.isra.0+0x79/0x2f0
 tasklet_action_common.isra.0+0x206/0x2f0
 __do_softirq+0x1b5/0x880
 ? tasklet_unlock+0x30/0x30
 run_ksoftirqd+0x26/0x50
 smpboot_thread_fn+0x34f/0x7d0
 ? smpboot_register_percpu_thread+0x370/0x370
 kthread+0x3a1/0x480
 ? set_kthread_struct+0x120/0x120
 ret_from_fork+0x1f/0x30
Modules linked in: 88XXau(O) 88x2bu(O)
---[ end trace 57f34f93b4da0f9b ]---
RIP: 0010:skb_add_rx_frag+0x143/0x370
Code: e2 07 83 c2 03 38 ca 7c 08 84 c9 0f 85 86 01 00 00 4c 8d 7d 08 44
89 68 08 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48 c1 ea 03 <80> 3c 02
00 0f 85 cd 01 00 00 48 8b 45 08 a8 01 0f 85 3d 01 00 00
RSP: 0018:ffffc900000cfc90 EFLAGS: 00010202
RAX: dffffc0000000000 RBX: ffff888115520dc0 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffff8881118430c0 RDI: ffff8881118430f8
RBP: 0000000000000000 R08: 0000000000000e09 R09: 0000000000000010
R10: ffff888111843017 R11: ffffed1022308602 R12: 0000000000000000
R13: 0000000000000e09 R14: 0000000000000010 R15: 0000000000000008
FS:  0000000000000000(0000) GS:ffff88811a800000(0000)
knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000004035af40 CR3: 00000001157f2000 CR4: 0000000000750ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
PKRU: 55555554

Signed-off-by: Jisoo Jang <jisoo.jang@yonsei.ac.kr>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20221229092906.2328282-1-jisoo.jang@yonsei.ac.kr

PlaidCat added a commit to ctrliq/kernel-src-tree that referenced this issue


          mptcp: send ack for every add_addr

f8d88f3

jira LE-1907
Rebuild_History Non-Buildable kernel-4.18.0-301.1.el8
commit-author Geliang Tang <geliangtang@gmail.com>
commit b5a7acd

This patch changes the sending ACK conditions for the ADD_ADDR, send an
ACK packet for any ADD_ADDR, not just when ipv6 addresses or port
numbers are included.

Closes: multipath-tcp/mptcp_net-next#139
	Acked-by: Paolo Abeni <pabeni@redhat.com>
	Signed-off-by: Geliang Tang <geliangtang@gmail.com>
	Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
	Signed-off-by: Jakub Kicinski <kuba@kernel.org>
(cherry picked from commit b5a7acd)
	Signed-off-by: Jonathan Maple <jmaple@ciq.com>

matttbe pushed a commit that referenced this issue


          ipv4: ip_tunnel: Fix suspicious RCU usage warning in ip_tunnel_find()

90e0569

The per-netns IP tunnel hash table is protected by the RTNL mutex and
ip_tunnel_find() is only called from the control path where the mutex is
taken.

Add a lockdep expression to hlist_for_each_entry_rcu() in
ip_tunnel_find() in order to validate that the mutex is held and to
silence the suspicious RCU usage warning [1].

[1]
WARNING: suspicious RCU usage
6.12.0-rc3-custom-gd95d9a31aceb #139 Not tainted
-----------------------------
net/ipv4/ip_tunnel.c:221 RCU-list traversed in non-reader section!!

other info that might help us debug this:

rcu_scheduler_active = 2, debug_locks = 1
1 lock held by ip/362:
 #0: ffffffff86fc7cb0 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x377/0xf60

stack backtrace:
CPU: 12 UID: 0 PID: 362 Comm: ip Not tainted 6.12.0-rc3-custom-gd95d9a31aceb #139
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
Call Trace:
 <TASK>
 dump_stack_lvl+0xba/0x110
 lockdep_rcu_suspicious.cold+0x4f/0xd6
 ip_tunnel_find+0x435/0x4d0
 ip_tunnel_newlink+0x517/0x7a0
 ipgre_newlink+0x14c/0x170
 __rtnl_newlink+0x1173/0x19c0
 rtnl_newlink+0x6c/0xa0
 rtnetlink_rcv_msg+0x3cc/0xf60
 netlink_rcv_skb+0x171/0x450
 netlink_unicast+0x539/0x7f0
 netlink_sendmsg+0x8c1/0xd80
 ____sys_sendmsg+0x8f9/0xc20
 ___sys_sendmsg+0x197/0x1e0
 __sys_sendmsg+0x122/0x1f0
 do_syscall_64+0xbb/0x1d0
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Fixes: c544193 ("GRE: Refactor GRE tunneling code.")
Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20241023123009.749764-1-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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