INFO: task dhcpcd:3206 blocked for more than 143 seconds.
Not tainted 6.1.0-rc5-syzkaller-00016-g31d929de5a11 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:dhcpcd state:D stack:26632 pid:3206 ppid:1 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0xae9/0x53f0 kernel/sched/core.c:6503
schedule+0xde/0x1b0 kernel/sched/core.c:6579
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6638
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa48/0x1360 kernel/locking/mutex.c:747
vlan_ioctl_handler+0xbb/0xee0 net/8021q/vlan.c:553
sock_ioctl+0x49e/0x680 net/socket.c:1250
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__x64_sys_ioctl+0x197/0x210 fs/ioctl.c:856
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
RIP: 0033:0x7fdd987780e7
RSP: 002b:00007fff52b153e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000560ae9a14cd0 RCX: 00007fdd987780e7
RDX: 00007fff52b153f0 RSI: 0000000000008982 RDI: 0000000000000011
RBP: 0000000000000002 R08: 0000000000000008 R09: 0000000000000000
R10: 00007fff52b25a60 R11: 0000000000000246 R12: 00007fff52b153f0
R13: 00007fff52b154b0 R14: 0000560ae9a14cd0 R15: 0000560ae9b352c0
INFO: task kworker/0:6:28105 blocked for more than 144 seconds.
Not tainted 6.1.0-rc5-syzkaller-00016-g31d929de5a11 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:6 state:D stack:27144 pid:28105 ppid:2 flags:0x00004000
Workqueue: ipv6_addrconf addrconf_verify_work
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0xae9/0x53f0 kernel/sched/core.c:6503
schedule+0xde/0x1b0 kernel/sched/core.c:6579
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6638
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa48/0x1360 kernel/locking/mutex.c:747
addrconf_verify_work+0x12/0x30 net/ipv6/addrconf.c:4624
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:306
INFO: task kworker/0:1:13404 blocked for more than 144 seconds.
Not tainted 6.1.0-rc5-syzkaller-00016-g31d929de5a11 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:1 state:D stack:27624 pid:13404 ppid:2 flags:0x00004000
Workqueue: events switchdev_deferred_process_work
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0xae9/0x53f0 kernel/sched/core.c:6503
schedule+0xde/0x1b0 kernel/sched/core.c:6579
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6638
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa48/0x1360 kernel/locking/mutex.c:747
switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:75
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:306
INFO: task kworker/1:6:13367 blocked for more than 145 seconds.
Not tainted 6.1.0-rc5-syzkaller-00016-g31d929de5a11 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:6 state:D stack:27848 pid:13367 ppid:2 flags:0x00004000
Workqueue: events linkwatch_event
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0xae9/0x53f0 kernel/sched/core.c:6503
schedule+0xde/0x1b0 kernel/sched/core.c:6579
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6638
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa48/0x1360 kernel/locking/mutex.c:747
linkwatch_event+0xf/0x70 net/core/link_watch.c:263
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:306
INFO: task syz-executor.0:24788 blocked for more than 145 seconds.
Not tainted 6.1.0-rc5-syzkaller-00016-g31d929de5a11 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:25184 pid:24788 ppid:1 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5191 [inline]
__schedule+0xae9/0x53f0 kernel/sched/core.c:6503
schedule+0xde/0x1b0 kernel/sched/core.c:6579
schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6638
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa48/0x1360 kernel/locking/mutex.c:747
rtnl_lock net/core/rtnetlink.c:74 [inline]
rtnetlink_rcv_msg+0x3e9/0xca0 net/core/rtnetlink.c:6088
netlink_rcv_skb+0x157/0x430 net/netlink/af_netlink.c:2540
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x547/0x7f0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x91b/0xe10 net/netlink/af_netlink.c:1921
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg+0xd3/0x120 net/socket.c:734
__sys_sendto+0x23a/0x340 net/socket.c:2117
__do_sys_sendto net/socket.c:2129 [inline]
__se_sys_sendto net/socket.c:2125 [inline]
__x64_sys_sendto+0xe1/0x1b0 net/socket.c:2125
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
RIP: 0033:0x7f50f383e10c
RSP: 002b:00007ffd2081a220 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f50f44d4620 RCX: 00007f50f383e10c
RDX: 000000000000003c RSI: 00007f50f44d4670 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffd2081a274 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 00007f50f44d4670 R14: 0000000000000003 R15: 0000000000000000
Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
#0: ffffffff8c58f0f0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
#0: ffffffff8c58edf0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/28:
#0: ffffffff8c58fc40 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x57/0x264 kernel/locking/lockdep.c:6494
1 lock held by kworker/1:2/2955:
#0: ffff8880b9b3b158 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x2f/0x120 kernel/sched/core.c:537
2 locks held by dhcpcd/3206:
#0: ffffffff8de90be8 (vlan_ioctl_mutex){+.+.}-{3:3}, at: sock_ioctl+0x485/0x680 net/socket.c:1248
#1: ffffffff8deb48a8 (rtnl_mutex){+.+.}-{3:3}, at: vlan_ioctl_handler+0xbb/0xee0 net/8021q/vlan.c:553
2 locks held by getty/3309:
#0: ffff888028084098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc900031262f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2177
3 locks held by kworker/1:1/27433:
#0: ffff8880275b0138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff8880275b0138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff8880275b0138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff8880275b0138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff8880275b0138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff8880275b0138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
#1: ffffc9001595fda8 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
#2: ffffffff8deb48a8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x12/0x30 net/ipv6/addrconf.c:4624
3 locks held by kworker/0:6/28105:
#0: ffff8880275b0138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff8880275b0138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff8880275b0138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff8880275b0138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff8880275b0138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff8880275b0138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
#1: ffffc90005cafda8 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
#2: ffffffff8deb48a8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x12/0x30 net/ipv6/addrconf.c:4624
3 locks held by kworker/0:1/13404:
#0: ffff888012064d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888012064d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888012064d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888012064d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888012064d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888012064d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
#1: ffffc90016917da8 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
#2: ffffffff8deb48a8 (rtnl_mutex){+.+.}-{3:3}, at: switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:75
2 locks held by kworker/u4:5/20302:
5 locks held by kworker/u4:6/22915:
#0: ffff8880121c6938 ((wq_completion)netns){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff8880121c6938 ((wq_completion)netns){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff8880121c6938 ((wq_completion)netns){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff8880121c6938 ((wq_completion)netns){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff8880121c6938 ((wq_completion)netns){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff8880121c6938 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
#1: ffffc9000b8efda8 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
#2: ffffffff8dea0c90 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x9f/0xb00 net/core/net_namespace.c:563
#3: ffffffff8deb48a8 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0x92/0x590 net/core/dev.c:11327
#4: ffffffff8c59a8f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:292 [inline]
#4: ffffffff8c59a8f8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x5df/0x780 kernel/rcu/tree_exp.h:946
2 locks held by kworker/1:3/23174:
#0: ffff888012066538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888012066538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888012066538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888012066538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888012066538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888012066538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
#1: ffffc9000ca7fda8 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
3 locks held by kworker/u4:3/945:
9 locks held by kworker/u4:8/951:
2 locks held by kworker/0:4/10331:
3 locks held by kworker/1:6/13367:
#0: ffff888012064d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888012064d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888012064d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888012064d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888012064d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888012064d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x86d/0x1710 kernel/workqueue.c:2260
#1: ffffc90007a0fda8 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x8a1/0x1710 kernel/workqueue.c:2264
#2: ffffffff8deb48a8 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xf/0x70 net/core/link_watch.c:263
1 lock held by syz-executor.0/24788:
#0: ffffffff8deb48a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8deb48a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e9/0xca0 net/core/rtnetlink.c:6088
1 lock held by syz-executor.0/24798:
#0: ffffffff8deb48a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8deb48a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e9/0xca0 net/core/rtnetlink.c:6088
1 lock held by syz-executor.0/24802:
#0: ffffffff8deb48a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8deb48a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e9/0xca0 net/core/rtnetlink.c:6088
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.1.0-rc5-syzkaller-00016-g31d929de5a11 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd1/0x138 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x24/0x18a lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x333/0x3c0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xc75/0xfc0 kernel/hung_task.c:377
kthread+0x2e8/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 945 Comm: kworker/u4:3 Not tainted 6.1.0-rc5-syzkaller-00016-g31d929de5a11 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: bat_events batadv_nc_worker
RIP: 0010:lock_is_held_type+0x110/0x140 kernel/locking/lockdep.c:5716
Code: 15 76 83 f8 01 75 29 9c 58 f6 c4 02 75 3d 48 f7 04 24 00 02 00 00 74 01 fb 48 83 c4 08 44 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f 45 31 ed eb b9 0f 0b 48 c7 c7 40 41 4c 8a e8 ec 14 00 00 65 c7
RSP: 0018:ffffc900091afb78 EFLAGS: 00000286
RAX: 0000000000000000 RBX: 1ffff92001235f75 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8e519e17
R10: fffffbfff1ca33c2 R11: 0000000000000000 R12: 0000000000000001
R13: 0000000000000000 R14: ffffffff8c58fc40 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055b04f69b048 CR3: 000000007f0f7000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_is_held include/linux/lockdep.h:283 [inline]
rcu_read_lock_sched_held+0x3e/0x70 kernel/rcu/update.c:125
trace_lock_acquire include/trace/events/lock.h:24 [inline]
lock_acquire+0x500/0x630 kernel/locking/lockdep.c:5639
rcu_lock_acquire include/linux/rcupdate.h:304 [inline]
rcu_read_lock include/linux/rcupdate.h:738 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
batadv_nc_worker+0x131/0xfa0 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:306