ip6_tunnel: ip6tnl1 xmit: Local address not yet configured!
vcan0: j1939_tp_rxtimer: 0xffff88802f8ad000: rx timeout, send abort
vcan0: j1939_tp_rxtimer: 0xffff88802f8ad000: abort rx timeout. Force session deactivation
======================================================
WARNING: possible circular locking dependency detected
6.2.0-rc4-syzkaller-00664-ga7b87d2a31dc #0 Not tainted
------------------------------------------------------
kworker/u4:12/19618 is trying to acquire lock:
ffff88802beed088 (&priv->active_session_list_lock){+.-.}-{2:2}, at: spin_lock_bh include/linux/spinlock.h:355 [inline]
ffff88802beed088 (&priv->active_session_list_lock){+.-.}-{2:2}, at: j1939_session_list_lock net/can/j1939/transport.c:238 [inline]
ffff88802beed088 (&priv->active_session_list_lock){+.-.}-{2:2}, at: j1939_session_activate+0x47/0x4b0 net/can/j1939/transport.c:1561
but task is already holding lock:
ffff88804649e5c8 (&jsk->sk_session_queue_lock){+.-.}-{2:2}, at: spin_lock_bh include/linux/spinlock.h:355 [inline]
ffff88804649e5c8 (&jsk->sk_session_queue_lock){+.-.}-{2:2}, at: j1939_sk_queue_activate_next+0x5f/0x450 net/can/j1939/socket.c:207
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #2 (&jsk->sk_session_queue_lock){+.-.}-{2:2}:
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
_raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:355 [inline]
j1939_sk_queue_drop_all+0x3b/0x2f0 net/can/j1939/socket.c:139
j1939_sk_netdev_event_netdown+0x7f/0x160 net/can/j1939/socket.c:1275
j1939_netdev_notify+0x19d/0x1d0 net/can/j1939/main.c:379
notifier_call_chain+0xb5/0x200 kernel/notifier.c:87
call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1944
call_netdevice_notifiers_extack net/core/dev.c:1982 [inline]
call_netdevice_notifiers net/core/dev.c:1996 [inline]
__dev_notify_flags+0x1ea/0x2d0 net/core/dev.c:8571
dev_change_flags+0x11b/0x170 net/core/dev.c:8607
do_setlink+0x9f1/0x3bb0 net/core/rtnetlink.c:2827
__rtnl_newlink+0xd69/0x1840 net/core/rtnetlink.c:3590
rtnl_newlink+0x68/0xa0 net/core/rtnetlink.c:3637
rtnetlink_rcv_msg+0x43e/0xca0 net/core/rtnetlink.c:6141
netlink_rcv_skb+0x165/0x440 net/netlink/af_netlink.c:2564
netlink_unicast_kernel net/netlink/af_netlink.c:1330 [inline]
netlink_unicast+0x547/0x7f0 net/netlink/af_netlink.c:1356
netlink_sendmsg+0x91b/0xe10 net/netlink/af_netlink.c:1932
sock_sendmsg_nosec net/socket.c:722 [inline]
sock_sendmsg+0xde/0x190 net/socket.c:745
____sys_sendmsg+0x71c/0x900 net/socket.c:2501
___sys_sendmsg+0x110/0x1b0 net/socket.c:2555
__sys_sendmsg+0xf7/0x1c0 net/socket.c:2584
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
-> #1 (&priv->j1939_socks_lock){+.-.}-{2:2}:
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
_raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:355 [inline]
j1939_sk_errqueue+0xa3/0x1a0 net/can/j1939/socket.c:1081
__j1939_session_cancel+0x3b9/0x460 net/can/j1939/transport.c:1132
j1939_tp_rxtimer.cold+0x1f6/0x24f net/can/j1939/transport.c:1257
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x690/0xfb0 kernel/time/hrtimer.c:1749
hrtimer_run_softirq+0x17f/0x360 kernel/time/hrtimer.c:1766
__do_softirq+0x1fb/0xadc kernel/softirq.c:571
invoke_softirq kernel/softirq.c:445 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:650
irq_exit_rcu+0x9/0x20 kernel/softirq.c:662
sysvec_apic_timer_interrupt+0x97/0xc0 arch/x86/kernel/apic/apic.c:1107
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
preempt_count arch/x86/include/asm/preempt.h:27 [inline]
check_kcov_mode kernel/kcov.c:173 [inline]
__sanitizer_cov_trace_pc+0xb/0x70 kernel/kcov.c:207
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:406 [inline]
batadv_nc_worker+0xe9/0xfa0 net/batman-adv/network-coding.c:719
process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
worker_thread+0x669/0x1090 kernel/workqueue.c:2436
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
-> #0 (&priv->active_session_list_lock){+.-.}-{2:2}:
check_prev_add kernel/locking/lockdep.c:3097 [inline]
check_prevs_add kernel/locking/lockdep.c:3216 [inline]
validate_chain kernel/locking/lockdep.c:3831 [inline]
__lock_acquire+0x2a43/0x56d0 kernel/locking/lockdep.c:5055
lock_acquire kernel/locking/lockdep.c:5668 [inline]
lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
_raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:355 [inline]
j1939_session_list_lock net/can/j1939/transport.c:238 [inline]
j1939_session_activate+0x47/0x4b0 net/can/j1939/transport.c:1561
j1939_sk_queue_activate_next_locked net/can/j1939/socket.c:181 [inline]
j1939_sk_queue_activate_next+0x1b6/0x450 net/can/j1939/socket.c:208
j1939_session_deactivate_activate_next+0xc8/0xd3 net/can/j1939/transport.c:1109
j1939_tp_rxtimer.cold+0x154/0x24f net/can/j1939/transport.c:1236
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x690/0xfb0 kernel/time/hrtimer.c:1749
hrtimer_run_softirq+0x17f/0x360 kernel/time/hrtimer.c:1766
__do_softirq+0x1fb/0xadc kernel/softirq.c:571
invoke_softirq kernel/softirq.c:445 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:650
irq_exit_rcu+0x9/0x20 kernel/softirq.c:662
sysvec_apic_timer_interrupt+0x97/0xc0 arch/x86/kernel/apic/apic.c:1107
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
check_preemption_disabled+0xe/0x170 lib/smp_processor_id.c:13
rcu_dynticks_curr_cpu_in_eqs include/linux/context_tracking.h:121 [inline]
rcu_is_watching+0x12/0xb0 kernel/rcu/tree.c:713
rcu_read_lock_held_common kernel/rcu/update.c:108 [inline]
rcu_read_lock_sched_held+0x20/0x70 kernel/rcu/update.c:123
trace_lock_release include/trace/events/lock.h:69 [inline]
lock_release+0x5cf/0x810 kernel/locking/lockdep.c:5679
rcu_lock_release include/linux/rcupdate.h:330 [inline]
rcu_read_unlock include/linux/rcupdate.h:797 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:412 [inline]
batadv_nc_worker+0x86f/0xfa0 net/batman-adv/network-coding.c:719
process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
worker_thread+0x669/0x1090 kernel/workqueue.c:2436
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
other info that might help us debug this:
Chain exists of:
&priv->active_session_list_lock --> &priv->j1939_socks_lock --> &jsk->sk_session_queue_lock
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&jsk->sk_session_queue_lock);
lock(&priv->j1939_socks_lock);
lock(&jsk->sk_session_queue_lock);
lock(&priv->active_session_list_lock);
*** DEADLOCK ***
4 locks held by kworker/u4:12/19618:
#0: ffff888027cc8938 ((wq_completion)bat_events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888027cc8938 ((wq_completion)bat_events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888027cc8938 ((wq_completion)bat_events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888027cc8938 ((wq_completion)bat_events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888027cc8938 ((wq_completion)bat_events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888027cc8938 ((wq_completion)bat_events){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
#1: ffffc9000a16fda8 ((work_completion)(&(&bat_priv->nc.work)->work)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
#2: ffffffff8c791c00 (rcu_read_lock){....}-{1:2}, at: batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:406 [inline]
#2: ffffffff8c791c00 (rcu_read_lock){....}-{1:2}, at: batadv_nc_worker+0xf7/0xfa0 net/batman-adv/network-coding.c:719
#3: ffff88804649e5c8 (&jsk->sk_session_queue_lock){+.-.}-{2:2}, at: spin_lock_bh include/linux/spinlock.h:355 [inline]
#3: ffff88804649e5c8 (&jsk->sk_session_queue_lock){+.-.}-{2:2}, at: j1939_sk_queue_activate_next+0x5f/0x450 net/can/j1939/socket.c:207
stack backtrace:
CPU: 0 PID: 19618 Comm: kworker/u4:12 Not tainted 6.2.0-rc4-syzkaller-00664-ga7b87d2a31dc #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023
Workqueue: bat_events batadv_nc_worker
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd1/0x138 lib/dump_stack.c:106
check_noncircular+0x25f/0x2e0 kernel/locking/lockdep.c:2177
check_prev_add kernel/locking/lockdep.c:3097 [inline]
check_prevs_add kernel/locking/lockdep.c:3216 [inline]
validate_chain kernel/locking/lockdep.c:3831 [inline]
__lock_acquire+0x2a43/0x56d0 kernel/locking/lockdep.c:5055
lock_acquire kernel/locking/lockdep.c:5668 [inline]
lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
_raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:355 [inline]
j1939_session_list_lock net/can/j1939/transport.c:238 [inline]
j1939_session_activate+0x47/0x4b0 net/can/j1939/transport.c:1561
j1939_sk_queue_activate_next_locked net/can/j1939/socket.c:181 [inline]
j1939_sk_queue_activate_next+0x1b6/0x450 net/can/j1939/socket.c:208
j1939_session_deactivate_activate_next+0xc8/0xd3 net/can/j1939/transport.c:1109
j1939_tp_rxtimer.cold+0x154/0x24f net/can/j1939/transport.c:1236
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x690/0xfb0 kernel/time/hrtimer.c:1749
hrtimer_run_softirq+0x17f/0x360 kernel/time/hrtimer.c:1766
__do_softirq+0x1fb/0xadc kernel/softirq.c:571
invoke_softirq kernel/softirq.c:445 [inline]
__irq_exit_rcu+0x123/0x180 kernel/softirq.c:650
irq_exit_rcu+0x9/0x20 kernel/softirq.c:662
sysvec_apic_timer_interrupt+0x97/0xc0 arch/x86/kernel/apic/apic.c:1107
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:check_preemption_disabled+0xe/0x170 lib/smp_processor_id.c:14
Code: 0f 0b 0f 1f 44 00 00 5b e9 6f fb ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 41 56 41 55 49 89 f5 41 54 55 48 89 fd 53 <0f> 1f 44 00 00 65 44 8b 25 01 0b fd 75 65 8b 1d f6 0a fd 75 81 e3
RSP: 0018:ffffc9000a16fb68 EFLAGS: 00000282
RAX: 0000000000000001 RBX: 0000000000000003 RCX: ffffffff81640059
RDX: dffffc0000000000 RSI: ffffffff8aa6bb00 RDI: ffffffff8aa6bb40
RBP: ffffffff8aa6bb40 R08: 0000000000000000 R09: ffffffff8e731117
R10: fffffbfff1ce6222 R11: 0000000000000000 R12: 0000000000000001
R13: ffffffff8aa6bb00 R14: 0000000000000000 R15: 00000000000001c9
rcu_dynticks_curr_cpu_in_eqs include/linux/context_tracking.h:121 [inline]
rcu_is_watching+0x12/0xb0 kernel/rcu/tree.c:713
rcu_read_lock_held_common kernel/rcu/update.c:108 [inline]
rcu_read_lock_sched_held+0x20/0x70 kernel/rcu/update.c:123
trace_lock_release include/trace/events/lock.h:69 [inline]
lock_release+0x5cf/0x810 kernel/locking/lockdep.c:5679
rcu_lock_release include/linux/rcupdate.h:330 [inline]
rcu_read_unlock include/linux/rcupdate.h:797 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:412 [inline]
batadv_nc_worker+0x86f/0xfa0 net/batman-adv/network-coding.c:719
process_one_work+0x9bf/0x1710 kernel/workqueue.c:2289
worker_thread+0x669/0x1090 kernel/workqueue.c:2436
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
vcan0: j1939_tp_rxtimer: 0xffff88802af8e000: rx timeout, send abort
vcan0: j1939_tp_rxtimer: 0xffff88802af8e000: abort rx timeout. Force session deactivation
ip6_tunnel: ip6tnl1 xmit: Local address not yet configured!
----------------
Code disassembly (best guess):
0: 0f 0b ud2
2: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
7: 5b pop %rbx
8: e9 6f fb ff ff jmpq 0xfffffb7c
d: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1)
14: 00 00 00
17: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
1c: 41 56 push %r14
1e: 41 55 push %r13
20: 49 89 f5 mov %rsi,%r13
23: 41 54 push %r12
25: 55 push %rbp
26: 48 89 fd mov %rdi,%rbp
29: 53 push %rbx
* 2a: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1) <-- trapping instruction
2f: 65 44 8b 25 01 0b fd mov %gs:0x75fd0b01(%rip),%r12d # 0x75fd0b38
36: 75
37: 65 8b 1d f6 0a fd 75 mov %gs:0x75fd0af6(%rip),%ebx # 0x75fd0b34
3e: 81 .byte 0x81
3f: e3 .byte 0xe3