INFO: task kworker/0:3:2143 blocked for more than 143 seconds.
Not tainted 5.18.0-rc6-syzkaller-00132-g6fd45e79e8b9 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:3 state:D stack:26328 pid: 2143 ppid: 2 flags:0x00004000
Workqueue: ipv6_addrconf addrconf_dad_work
Call Trace:
context_switch kernel/sched/core.c:5073 [inline]
__schedule+0xa9a/0x4cc0 kernel/sched/core.c:6388
schedule+0xd2/0x1f0 kernel/sched/core.c:6460
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6519
__mutex_lock_common kernel/locking/mutex.c:673 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:733
addrconf_dad_work+0xa3/0x1340 net/ipv6/addrconf.c:4067
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Showing all locks held in the system:
1 lock held by khungtaskd/28:
#0: ffffffff8bd820e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6467
1 lock held by klogd/2955:
2 locks held by getty/3279:
#0: ffff88807f4a0098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc90002ce62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xcea/0x1230 drivers/tty/n_tty.c:2075
3 locks held by kworker/1:5/3681:
#0: ffff88814bcfed38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff88814bcfed38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff88814bcfed38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff88814bcfed38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff88814bcfed38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff88814bcfed38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
#1: ffffc90003d3fda8 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
#2: ffffffff8d5717e8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xa3/0x1340 net/ipv6/addrconf.c:4067
3 locks held by kworker/0:1/24041:
#0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
#1: ffffc9000558fda8 (free_ipc_work){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
#2: ffffffff8bd8bea0 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:322 [inline]
#2: ffffffff8bd8bea0 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x2d5/0x620 kernel/rcu/tree_exp.h:841
3 locks held by kworker/0:3/2143:
#0: ffff88814bcfed38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff88814bcfed38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff88814bcfed38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff88814bcfed38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff88814bcfed38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff88814bcfed38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
#1: ffffc90014737da8 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
#2: ffffffff8d5717e8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xa3/0x1340 net/ipv6/addrconf.c:4067
3 locks held by kworker/1:6/5979:
3 locks held by syz-executor.3/8088:
#0: ffff88804fdfd048 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x2a/0x70 net/bluetooth/hci_core.c:551
#1: ffff88804fdfc078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x26d/0x1140 net/bluetooth/hci_sync.c:4108
#2: ffffffff8d792248 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1579 [inline]
#2: ffffffff8d792248 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xda/0x260 net/bluetooth/hci_conn.c:1474
3 locks held by syz-executor.4/8089:
#0: ffff88804fe09048 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x2a/0x70 net/bluetooth/hci_core.c:551
#1: ffff88804fe08078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x26d/0x1140 net/bluetooth/hci_sync.c:4108
#2: ffffffff8d792248 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1579 [inline]
#2: ffffffff8d792248 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xda/0x260 net/bluetooth/hci_conn.c:1474
3 locks held by syz-executor.1/8093:
#0: ffff88804fe61048 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x2a/0x70 net/bluetooth/hci_core.c:551
#1: ffff88804fe60078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x26d/0x1140 net/bluetooth/hci_sync.c:4108
#2: ffffffff8d792248 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1579 [inline]
#2: ffffffff8d792248 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xda/0x260 net/bluetooth/hci_conn.c:1474
3 locks held by syz-executor.2/8099:
#0: ffff88804fe0d048 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x2a/0x70 net/bluetooth/hci_core.c:551
#1: ffff88804fe0c078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x26d/0x1140 net/bluetooth/hci_sync.c:4108
#2: ffffffff8d792248 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1579 [inline]
#2: ffffffff8d792248 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xda/0x260 net/bluetooth/hci_conn.c:1474
3 locks held by syz-executor.5/8101:
#0: ffff88801df95048 (&hdev->req_lock){+.+.}-{3:3}, at: hci_dev_do_close+0x2a/0x70 net/bluetooth/hci_core.c:551
#1: ffff88801df94078 (&hdev->lock){+.+.}-{3:3}, at: hci_dev_close_sync+0x26d/0x1140 net/bluetooth/hci_sync.c:4108
#2: ffffffff8d792248 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_disconn_cfm include/net/bluetooth/hci_core.h:1579 [inline]
#2: ffffffff8d792248 (hci_cb_list_lock){+.+.}-{3:3}, at: hci_conn_hash_flush+0xda/0x260 net/bluetooth/hci_conn.c:1474
2 locks held by syz-executor.0/8104:
#0: ffffffff8d5717e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8d5717e8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 net/core/rtnetlink.c:5990
#1: ffffffff8bd8bea0 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline]
#1: ffffffff8bd8bea0 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x4fa/0x620 kernel/rcu/tree_exp.h:841
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 5.18.0-rc6-syzkaller-00132-g6fd45e79e8b9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1e6/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0xc1d/0xf50 kernel/hung_task.c:369
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 5979 Comm: kworker/1:6 Not tainted 5.18.0-rc6-syzkaller-00132-g6fd45e79e8b9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events ipvlan_process_multicast
RIP: 0010:preempt_count_sub+0x0/0x150 kernel/sched/core.c:5561
Code: 89 ef e8 13 87 73 00 eb 82 e8 8c 87 73 00 eb e4 48 89 df e8 82 87 73 00 eb 90 e8 7b 87 73 00 eb ac 66 0f 1f 84 00 00 00 00 00 <48> c7 c0 40 c9 5b 90 53 89 fb 48 ba 00 00 00 00 00 fc ff df 48 89
RSP: 0018:ffffc900046ff758 EFLAGS: 00000283
RAX: ffffc90004700001 RBX: ffffc900046ff8f8 RCX: 0000000000000001
RDX: ffffc900046ff900 RSI: 0000000000000001 RDI: 0000000000000001
RBP: ffffc900046f8000 R08: ffffffff8e39ddd8 R09: ffffc900046ff804
R10: fffff520008dff05 R11: ffffc900046ff8f0 R12: ffffc900046ff805
R13: ffffc900046ff7d0 R14: ffffc900046ff8f8 R15: ffffffff8e39dddc
FS: 0000000000000000(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2e921000 CR3: 0000000024042000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
unwind_next_frame+0xfa9/0x1cc0 arch/x86/kernel/unwind_orc.c:624
arch_stack_walk+0x7d/0xe0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:122
kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38
kasan_set_track mm/kasan/common.c:45 [inline]
set_alloc_info mm/kasan/common.c:436 [inline]
__kasan_slab_alloc+0x90/0xc0 mm/kasan/common.c:469
kasan_slab_alloc include/linux/kasan.h:224 [inline]
slab_post_alloc_hook mm/slab.h:749 [inline]
slab_alloc_node mm/slub.c:3217 [inline]
slab_alloc mm/slub.c:3225 [inline]
__kmem_cache_alloc_lru mm/slub.c:3232 [inline]
kmem_cache_alloc+0x204/0x3b0 mm/slub.c:3242
skb_clone+0x170/0x3c0 net/core/skbuff.c:1520
ipvlan_process_multicast+0x695/0xd90 drivers/net/ipvlan/ipvlan_core.c:267
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:298
----------------
Code disassembly (best guess):
0: 89 ef mov %ebp,%edi
2: e8 13 87 73 00 callq 0x73871a
7: eb 82 jmp 0xffffff8b
9: e8 8c 87 73 00 callq 0x73879a
e: eb e4 jmp 0xfffffff4
10: 48 89 df mov %rbx,%rdi
13: e8 82 87 73 00 callq 0x73879a
18: eb 90 jmp 0xffffffaa
1a: e8 7b 87 73 00 callq 0x73879a
1f: eb ac jmp 0xffffffcd
21: 66 0f 1f 84 00 00 00 nopw 0x0(%rax,%rax,1)
28: 00 00
* 2a: 48 c7 c0 40 c9 5b 90 mov $0xffffffff905bc940,%rax <-- trapping instruction
31: 53 push %rbx
32: 89 fb mov %edi,%ebx
34: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx
3b: fc ff df
3e: 48 rex.W
3f: 89 .byte 0x89