INFO: task dhcpcd:4721 blocked for more than 143 seconds.
Not tainted 6.8.0-syzkaller-00711-g045395d86acd #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:dhcpcd state:D stack:22264 pid:4721 tgid:4721 ppid:1 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5411 [inline]
__schedule+0x177f/0x49a0 kernel/sched/core.c:6738
__schedule_loop kernel/sched/core.c:6815 [inline]
schedule+0x14a/0x320 kernel/sched/core.c:6830
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6887
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a3/0xd70 kernel/locking/mutex.c:752
__netlink_dump_start+0x13e/0x790 net/netlink/af_netlink.c:2333
netlink_dump_start include/linux/netlink.h:338 [inline]
rtnetlink_rcv_msg+0xc96/0x1040 net/core/rtnetlink.c:6573
netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543
netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]
netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1367
netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
____sys_sendmsg+0x525/0x7d0 net/socket.c:2584
___sys_sendmsg net/socket.c:2638 [inline]
__sys_sendmsg+0x2b0/0x3a0 net/socket.c:2667
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f9dd4da1a4b
RSP: 002b:00007ffd167bc9e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000055558636a81d RCX: 00007f9dd4da1a4b
RDX: 0000000000000000 RSI: 00007ffd167bca30 RDI: 000000000000000f
RBP: 00007ffd167c4da8 R08: 00007ffd167c0ad4 R09: 00007ffd167c0ad4
R10: 00007ffd167c4ff0 R11: 0000000000000246 R12: 000000000000000f
R13: 0000555587e8d0b0 R14: 00007ffd167c4da8 R15: 0000000003011eac
INFO: task kworker/1:3:5132 blocked for more than 143 seconds.
Not tainted 6.8.0-syzkaller-00711-g045395d86acd #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:3 state:D stack:20816 pid:5132 tgid:5132 ppid:2 flags:0x00004000
Workqueue: ipv6_addrconf addrconf_dad_work
Call Trace:
context_switch kernel/sched/core.c:5411 [inline]
__schedule+0x177f/0x49a0 kernel/sched/core.c:6738
__schedule_loop kernel/sched/core.c:6815 [inline]
schedule+0x14a/0x320 kernel/sched/core.c:6830
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6887
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a3/0xd70 kernel/locking/mutex.c:752
addrconf_dad_work+0xd0/0x16f0 net/ipv6/addrconf.c:4144
process_one_work kernel/workqueue.c:3254 [inline]
process_scheduled_works+0x9ff/0x1770 kernel/workqueue.c:3335
worker_thread+0x86c/0xd70 kernel/workqueue.c:3416
kthread+0x2ef/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:243
INFO: task kworker/0:4:27837 blocked for more than 144 seconds.
Not tainted 6.8.0-syzkaller-00711-g045395d86acd #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:4 state:D stack:21688 pid:27837 tgid:27837 ppid:2 flags:0x00004000
Workqueue: events smc_ib_port_event_work
Call Trace:
context_switch kernel/sched/core.c:5411 [inline]
__schedule+0x177f/0x49a0 kernel/sched/core.c:6738
__schedule_loop kernel/sched/core.c:6815 [inline]
schedule+0x14a/0x320 kernel/sched/core.c:6830
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6887
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a3/0xd70 kernel/locking/mutex.c:752
ib_get_eth_speed+0x153/0x800 drivers/infiniband/core/verbs.c:1983
rxe_query_port+0x76/0x260 drivers/infiniband/sw/rxe/rxe_verbs.c:55
__ib_query_port drivers/infiniband/core/device.c:2060 [inline]
ib_query_port+0x166/0x7d0 drivers/infiniband/core/device.c:2092
smc_ib_remember_port_attr net/smc/smc_ib.c:359 [inline]
smc_ib_port_event_work+0x161/0xa70 net/smc/smc_ib.c:383
process_one_work kernel/workqueue.c:3254 [inline]
process_scheduled_works+0x9ff/0x1770 kernel/workqueue.c:3335
worker_thread+0x86c/0xd70 kernel/workqueue.c:3416
kthread+0x2ef/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:243
INFO: task kworker/1:1:31662 blocked for more than 144 seconds.
Not tainted 6.8.0-syzkaller-00711-g045395d86acd #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:1 state:D stack:22488 pid:31662 tgid:31662 ppid:2 flags:0x00004000
Workqueue: events switchdev_deferred_process_work
Call Trace:
context_switch kernel/sched/core.c:5411 [inline]
__schedule+0x177f/0x49a0 kernel/sched/core.c:6738
__schedule_loop kernel/sched/core.c:6815 [inline]
schedule+0x14a/0x320 kernel/sched/core.c:6830
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6887
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a3/0xd70 kernel/locking/mutex.c:752
switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:104
process_one_work kernel/workqueue.c:3254 [inline]
process_scheduled_works+0x9ff/0x1770 kernel/workqueue.c:3335
worker_thread+0x86c/0xd70 kernel/workqueue.c:3416
kthread+0x2ef/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:243
INFO: task kworker/1:2:25650 blocked for more than 144 seconds.
Not tainted 6.8.0-syzkaller-00711-g045395d86acd #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:2 state:D stack:22800 pid:25650 tgid:25650 ppid:2 flags:0x00004000
Workqueue: events linkwatch_event
Call Trace:
context_switch kernel/sched/core.c:5411 [inline]
__schedule+0x177f/0x49a0 kernel/sched/core.c:6738
__schedule_loop kernel/sched/core.c:6815 [inline]
schedule+0x14a/0x320 kernel/sched/core.c:6830
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6887
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a3/0xd70 kernel/locking/mutex.c:752
linkwatch_event+0xe/0x60 net/core/link_watch.c:281
process_one_work kernel/workqueue.c:3254 [inline]
process_scheduled_works+0x9ff/0x1770 kernel/workqueue.c:3335
worker_thread+0x86c/0xd70 kernel/workqueue.c:3416
kthread+0x2ef/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:243
INFO: task syz-executor.3:14988 blocked for more than 145 seconds.
Not tainted 6.8.0-syzkaller-00711-g045395d86acd #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:20408 pid:14988 tgid:14988 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5411 [inline]
__schedule+0x177f/0x49a0 kernel/sched/core.c:6738
__schedule_loop kernel/sched/core.c:6815 [inline]
schedule+0x14a/0x320 kernel/sched/core.c:6830
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6887
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a3/0xd70 kernel/locking/mutex.c:752
rtnl_lock net/core/rtnetlink.c:79 [inline]
rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6614
netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543
netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]
netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1367
netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
__sys_sendto+0x3a4/0x4f0 net/socket.c:2191
__do_sys_sendto net/socket.c:2203 [inline]
__se_sys_sendto net/socket.c:2199 [inline]
__x64_sys_sendto+0xde/0x100 net/socket.c:2199
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f4b8d27fa9c
RSP: 002b:00007ffce53d3590 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f4b8ded4620 RCX: 00007f4b8d27fa9c
RDX: 0000000000000028 RSI: 00007f4b8ded4670 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffce53d35e4 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003
R13: 0000000000000000 R14: 00007f4b8ded4670 R15: 0000000000000000
INFO: task syz-executor.1:14992 blocked for more than 145 seconds.
Not tainted 6.8.0-syzkaller-00711-g045395d86acd #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:20408 pid:14992 tgid:14992 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5411 [inline]
__schedule+0x177f/0x49a0 kernel/sched/core.c:6738
__schedule_loop kernel/sched/core.c:6815 [inline]
schedule+0x14a/0x320 kernel/sched/core.c:6830
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6887
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a3/0xd70 kernel/locking/mutex.c:752
rtnl_lock net/core/rtnetlink.c:79 [inline]
rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6614
netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543
netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]
netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1367
netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
__sys_sendto+0x3a4/0x4f0 net/socket.c:2191
__do_sys_sendto net/socket.c:2203 [inline]
__se_sys_sendto net/socket.c:2199 [inline]
__x64_sys_sendto+0xde/0x100 net/socket.c:2199
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f6318a7fa9c
RSP: 002b:00007ffebdfa4460 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f63196d4620 RCX: 00007f6318a7fa9c
RDX: 0000000000000028 RSI: 00007f63196d4670 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffebdfa44b4 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003
R13: 0000000000000000 R14: 00007f63196d4670 R15: 0000000000000000
INFO: task syz-executor.2:14998 blocked for more than 145 seconds.
Not tainted 6.8.0-syzkaller-00711-g045395d86acd #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:20408 pid:14998 tgid:14998 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5411 [inline]
__schedule+0x177f/0x49a0 kernel/sched/core.c:6738
__schedule_loop kernel/sched/core.c:6815 [inline]
schedule+0x14a/0x320 kernel/sched/core.c:6830
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6887
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a3/0xd70 kernel/locking/mutex.c:752
rtnl_lock net/core/rtnetlink.c:79 [inline]
rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6614
netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543
netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]
netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1367
netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
__sys_sendto+0x3a4/0x4f0 net/socket.c:2191
__do_sys_sendto net/socket.c:2203 [inline]
__se_sys_sendto net/socket.c:2199 [inline]
__x64_sys_sendto+0xde/0x100 net/socket.c:2199
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f11f447fa9c
RSP: 002b:00007ffc501d9630 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f11f50d4620 RCX: 00007f11f447fa9c
RDX: 0000000000000020 RSI: 00007f11f50d4670 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffc501d9684 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003
R13: 0000000000000000 R14: 00007f11f50d4670 R15: 0000000000000000
INFO: task syz-executor.4:15094 blocked for more than 146 seconds.
Not tainted 6.8.0-syzkaller-00711-g045395d86acd #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:20984 pid:15094 tgid:15094 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5411 [inline]
__schedule+0x177f/0x49a0 kernel/sched/core.c:6738
__schedule_loop kernel/sched/core.c:6815 [inline]
schedule+0x14a/0x320 kernel/sched/core.c:6830
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6887
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a3/0xd70 kernel/locking/mutex.c:752
rtnl_lock net/core/rtnetlink.c:79 [inline]
rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6614
netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2543
netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]
netlink_unicast+0x7ea/0x980 net/netlink/af_netlink.c:1367
netlink_sendmsg+0xa3b/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:745
__sys_sendto+0x3a4/0x4f0 net/socket.c:2191
__do_sys_sendto net/socket.c:2203 [inline]
__se_sys_sendto net/socket.c:2199 [inline]
__x64_sys_sendto+0xde/0x100 net/socket.c:2199
do_syscall_64+0xf9/0x240
entry_SYSCALL_64_after_hwframe+0x6f/0x77
RIP: 0033:0x7f21bb27fa9c
RSP: 002b:00007ffd80243b00 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f21bbed4620 RCX: 00007f21bb27fa9c
RDX: 0000000000000028 RSI: 00007f21bbed4670 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffd80243b54 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003
R13: 0000000000000000 R14: 00007f21bbed4670 R15: 0000000000000000
INFO: task kworker/0:7:15218 blocked for more than 146 seconds.
Not tainted 6.8.0-syzkaller-00711-g045395d86acd #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:7 state:D stack:24784 pid:15218 tgid:15218 ppid:2 flags:0x00004000
Workqueue: ipv6_addrconf addrconf_dad_work
Call Trace:
context_switch kernel/sched/core.c:5411 [inline]
__schedule+0x177f/0x49a0 kernel/sched/core.c:6738
__schedule_loop kernel/sched/core.c:6815 [inline]
schedule+0x14a/0x320 kernel/sched/core.c:6830
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6887
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a3/0xd70 kernel/locking/mutex.c:752
addrconf_dad_work+0xd0/0x16f0 net/ipv6/addrconf.c:4144
process_one_work kernel/workqueue.c:3254 [inline]
process_scheduled_works+0x9ff/0x1770 kernel/workqueue.c:3335
worker_thread+0x86c/0xd70 kernel/workqueue.c:3416
kthread+0x2ef/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:243
Future hung task reports are suppressed, see sysctl kernel.hung_task_warnings
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8e131020 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
#0: ffffffff8e131020 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
#0: ffffffff8e131020 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6614
5 locks held by kworker/u8:4/60:
#0: ffff888015acb148 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3229 [inline]
#0: ffff888015acb148 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x8df/0x1770 kernel/workqueue.c:3335
#1: ffffc900015b7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3230 [inline]
#1: ffffc900015b7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x91a/0x1770 kernel/workqueue.c:3335
#2: ffffffff8f358c50 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xf5/0xb90 net/core/net_namespace.c:580
#3: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xe8/0x9d0 net/core/dev.c:11612
#4: ffffffff8e1363b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline]
#4: ffffffff8e1363b8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x39a/0x820 kernel/rcu/tree_exp.h:939
1 lock held by dhcpcd/4721:
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: __netlink_dump_start+0x13e/0x790 net/netlink/af_netlink.c:2333
2 locks held by getty/4809:
#0: ffff88802ac830a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc900031332f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6b4/0x1e10 drivers/tty/n_tty.c:2201
3 locks held by kworker/1:3/5132:
#0: ffff888029aaa548 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3229 [inline]
#0: ffff888029aaa548 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x8df/0x1770 kernel/workqueue.c:3335
#1: ffffc90004897d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3230 [inline]
#1: ffffc90004897d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x91a/0x1770 kernel/workqueue.c:3335
#2: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 net/ipv6/addrconf.c:4144
4 locks held by kworker/0:4/27837:
#0: ffff888014c78948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3229 [inline]
#0: ffff888014c78948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x8df/0x1770 kernel/workqueue.c:3335
#1: ffffc90013c9fd00 ((work_completion)(&smcibdev->port_event_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3230 [inline]
#1: ffffc90013c9fd00 ((work_completion)(&smcibdev->port_event_work)){+.+.}-{0:0}, at: process_scheduled_works+0x91a/0x1770 kernel/workqueue.c:3335
#2: ffff8880a7d41158 (&rxe->usdev_lock){+.+.}-{3:3}, at: rxe_query_port+0x61/0x260 drivers/infiniband/sw/rxe/rxe_verbs.c:54
#3: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: ib_get_eth_speed+0x153/0x800 drivers/infiniband/core/verbs.c:1983
3 locks held by kworker/0:9/27840:
#0: ffff888014c79948 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3229 [inline]
#0: ffff888014c79948 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_scheduled_works+0x8df/0x1770 kernel/workqueue.c:3335
#1: ffffc90013cafd00 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3230 [inline]
#1: ffffc90013cafd00 ((reg_check_chans).work){+.+.}-{0:0}, at: process_scheduled_works+0x91a/0x1770 kernel/workqueue.c:3335
#2: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: reg_check_chans_work+0x91/0xe50 net/wireless/reg.c:2479
3 locks held by kworker/1:1/31662:
#0: ffff888014c78948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3229 [inline]
#0: ffff888014c78948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x8df/0x1770 kernel/workqueue.c:3335
#1: ffffc900139e7d00 (deferred_process_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3230 [inline]
#1: ffffc900139e7d00 (deferred_process_work){+.+.}-{0:0}, at: process_scheduled_works+0x91a/0x1770 kernel/workqueue.c:3335
#2: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:104
3 locks held by kworker/1:2/25650:
#0: ffff888014c78948 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3229 [inline]
#0: ffff888014c78948 ((wq_completion)events){+.+.}-{0:0}, at: process_scheduled_works+0x8df/0x1770 kernel/workqueue.c:3335
#1: ffffc9001370fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3230 [inline]
#1: ffffc9001370fd00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x91a/0x1770 kernel/workqueue.c:3335
#2: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:281
3 locks held by kworker/u8:3/14756:
#0: ffff888015b1c948 ((wq_completion)ib-unreg-wq){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3229 [inline]
#0: ffff888015b1c948 ((wq_completion)ib-unreg-wq){+.+.}-{0:0}, at: process_scheduled_works+0x8df/0x1770 kernel/workqueue.c:3335
#1: ffffc9000a577d00 ((work_completion)(&device->unregistration_work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3230 [inline]
#1: ffffc9000a577d00 ((work_completion)(&device->unregistration_work)){+.+.}-{0:0}, at: process_scheduled_works+0x91a/0x1770 kernel/workqueue.c:3335
#2: ffff8880a7d406a0 (&device->unregistration_lock){+.+.}-{3:3}, at: __ib_unregister_device+0x2a/0x170 drivers/infiniband/core/device.c:1471
1 lock held by syz-executor.3/14988:
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6614
1 lock held by syz-executor.1/14992:
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6614
1 lock held by syz-executor.2/14998:
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6614
1 lock held by syz-executor.4/15094:
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6614
3 locks held by kworker/0:7/15218:
#0: ffff888029aaa548 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3229 [inline]
#0: ffff888029aaa548 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x8df/0x1770 kernel/workqueue.c:3335
#1: ffffc900034efd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3230 [inline]
#1: ffffc900034efd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x91a/0x1770 kernel/workqueue.c:3335
#2: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xd0/0x16f0 net/ipv6/addrconf.c:4144
1 lock held by syz-executor.0/15246:
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6614
1 lock held by syz-executor.0/15247:
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6614
1 lock held by syz-executor.0/15248:
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x86e/0x1340 net/core/dev_ioctl.c:811
1 lock held by syz-executor.3/15251:
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6614
1 lock held by syz-executor.1/15255:
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6614
1 lock held by syz-executor.2/15258:
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6614
1 lock held by syz-executor.0/15262:
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6614
1 lock held by syz-executor.4/15267:
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6614
1 lock held by syz-executor.3/15274:
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6614
1 lock held by syz-executor.1/15277:
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6614
1 lock held by syz-executor.2/15281:
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6614
1 lock held by syz-executor.0/15284:
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6614
1 lock held by syz-executor.4/15289:
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6614
1 lock held by syz-executor.3/15297:
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6614
1 lock held by syz-executor.1/15300:
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6614
1 lock held by syz-executor.2/15303:
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6614
1 lock held by syz-executor.0/15307:
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f3651c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x82c/0x1040 net/core/rtnetlink.c:6614
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.8.0-syzkaller-00711-g045395d86acd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e7/0x2e0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:222 [inline]
watchdog+0xfaf/0xff0 kernel/hung_task.c:379
kthread+0x2ef/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:243
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 13107 Comm: kworker/u8:1 Not tainted 6.8.0-syzkaller-00711-g045395d86acd #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
Workqueue: bat_events batadv_nc_worker
RIP: 0010:hlock_class kernel/locking/lockdep.c:228 [inline]
RIP: 0010:check_wait_context kernel/locking/lockdep.c:4774 [inline]
RIP: 0010:__lock_acquire+0x5a7/0x1fd0 kernel/locking/lockdep.c:5087
Code: 00 00 00 48 89 d8 48 c1 e8 03 0f b6 04 10 84 c0 0f 85 39 12 00 00 0f b6 2b 48 8b 44 24 20 0f b6 04 10 84 c0 0f 85 49 12 00 00 <41> 8b 1f 81 e3 ff 1f 00 00 48 89 d8 48 c1 e8 06 48 8d 3c c5 e0 e4
RSP: 0018:ffffc900139bf8f0 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffffffff92945e6c RCX: ffffffff817167fa
RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffffffff92c5e4e0
RBP: 0000000000000002 R08: ffffffff92c5e4e7 R09: 1ffffffff258bc9c
R10: dffffc0000000000 R11: fffffbfff258bc9d R12: 0000000000000000
R13: ffff888081fe9e00 R14: 000000000000000a R15: ffff888081fea948
FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000559a43dbbb00 CR3: 000000000df32000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x1e3/0x530 kernel/locking/lockdep.c:5754
rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
rcu_read_lock include/linux/rcupdate.h:750 [inline]
batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline]
batadv_nc_worker+0xec/0x610 net/batman-adv/network-coding.c:719
process_one_work kernel/workqueue.c:3254 [inline]
process_scheduled_works+0x9ff/0x1770 kernel/workqueue.c:3335
worker_thread+0x86c/0xd70 kernel/workqueue.c:3416
kthread+0x2ef/0x390 kernel/kthread.c:388
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1b/0x30 arch/x86/entry/entry_64.S:243