INFO: task dhcpcd:4727 blocked for more than 143 seconds.
Not tainted 6.8.0-rc1-next-20240125-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:dhcpcd state:D stack:22720 pid:4727 tgid:4727 ppid:4726 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0xf15/0x5ce0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6804 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6819
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6876
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
netlink_dump+0xc1/0xcc0 net/netlink/af_netlink.c:2211
netlink_recvmsg+0xa02/0xf20 net/netlink/af_netlink.c:1990
sock_recvmsg_nosec net/socket.c:1046 [inline]
sock_recvmsg+0x1f6/0x250 net/socket.c:1068
____sys_recvmsg+0x21f/0x6b0 net/socket.c:2803
___sys_recvmsg+0x115/0x1a0 net/socket.c:2845
__sys_recvmsg+0x114/0x1e0 net/socket.c:2875
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f0e224ab91e
RSP: 002b:00007ffec06d9088 EFLAGS: 00000246 ORIG_RAX: 000000000000002f
RAX: ffffffffffffffda RBX: 00007ffec06da1b0 RCX: 00007f0e224ab91e
RDX: 0000000000000000 RSI: 00007ffec06da0d0 RDI: 0000000000000018
RBP: 00007ffec06da140 R08: 00007ffec06da0b4 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000016
R13: 00007ffec06da0b4 R14: 00007ffec06da0d0 R15: 00007ffec06da0c0
INFO: task kworker/1:0:24844 blocked for more than 143 seconds.
Not tainted 6.8.0-rc1-next-20240125-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:0 state:D stack:25872 pid:24844 tgid:24844 ppid:2 flags:0x00004000
Workqueue: ipv6_addrconf addrconf_dad_work
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0xf15/0x5ce0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6804 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6819
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6876
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
addrconf_dad_work+0xcf/0x14c0 net/ipv6/addrconf.c:4129
process_one_work+0x8d5/0x16e0 kernel/workqueue.c:2633
process_scheduled_works kernel/workqueue.c:2707 [inline]
worker_thread+0x8b6/0x1290 kernel/workqueue.c:2788
kthread+0x2c1/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:242
INFO: task kworker/0:17:10154 blocked for more than 144 seconds.
Not tainted 6.8.0-rc1-next-20240125-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:17 state:D stack:27168 pid:10154 tgid:10154 ppid:2 flags:0x00004000
Workqueue: ipv6_addrconf addrconf_dad_work
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0xf15/0x5ce0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6804 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6819
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6876
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
addrconf_dad_work+0xcf/0x14c0 net/ipv6/addrconf.c:4129
process_one_work+0x8d5/0x16e0 kernel/workqueue.c:2633
process_scheduled_works kernel/workqueue.c:2707 [inline]
worker_thread+0x8b6/0x1290 kernel/workqueue.c:2788
kthread+0x2c1/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:242
INFO: task kworker/1:15:10156 blocked for more than 144 seconds.
Not tainted 6.8.0-rc1-next-20240125-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:15 state:D stack:27056 pid:10156 tgid:10156 ppid:2 flags:0x00004000
Workqueue: events switchdev_deferred_process_work
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0xf15/0x5ce0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6804 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6819
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6876
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:75
process_one_work+0x8d5/0x16e0 kernel/workqueue.c:2633
process_scheduled_works kernel/workqueue.c:2707 [inline]
worker_thread+0x8b6/0x1290 kernel/workqueue.c:2788
kthread+0x2c1/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:242
INFO: task syz-executor.4:13780 blocked for more than 145 seconds.
Not tainted 6.8.0-rc1-next-20240125-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.4 state:D stack:24368 pid:13780 tgid:13780 ppid:1 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0xf15/0x5ce0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6804 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6819
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6876
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
rtnl_lock net/core/rtnetlink.c:79 [inline]
rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612
netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2543
netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]
netlink_unicast+0x542/0x820 net/netlink/af_netlink.c:1367
netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg net/socket.c:745 [inline]
__sys_sendto+0x47f/0x4e0 net/socket.c:2191
__do_sys_sendto net/socket.c:2203 [inline]
__se_sys_sendto net/socket.c:2199 [inline]
__x64_sys_sendto+0xe0/0x1c0 net/socket.c:2199
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f3bd047ea9c
RSP: 002b:00007ffd67510700 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f3bd10d4620 RCX: 00007f3bd047ea9c
RDX: 0000000000000028 RSI: 00007f3bd10d4670 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffd67510754 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003
R13: 0000000000000000 R14: 00007f3bd10d4670 R15: 0000000000000000
INFO: task syz-executor.0:13786 blocked for more than 145 seconds.
Not tainted 6.8.0-rc1-next-20240125-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.0 state:D stack:24368 pid:13786 tgid:13786 ppid:1 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0xf15/0x5ce0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6804 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6819
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6876
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
rtnl_lock net/core/rtnetlink.c:79 [inline]
rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612
netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2543
netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]
netlink_unicast+0x542/0x820 net/netlink/af_netlink.c:1367
netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg net/socket.c:745 [inline]
__sys_sendto+0x47f/0x4e0 net/socket.c:2191
__do_sys_sendto net/socket.c:2203 [inline]
__se_sys_sendto net/socket.c:2199 [inline]
__x64_sys_sendto+0xe0/0x1c0 net/socket.c:2199
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f90a667ea9c
RSP: 002b:00007fff2b1311d0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f90a72d4620 RCX: 00007f90a667ea9c
RDX: 0000000000000040 RSI: 00007f90a72d4670 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007fff2b131224 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003
R13: 0000000000000000 R14: 00007f90a72d4670 R15: 0000000000000000
INFO: task syz-executor.3:13788 blocked for more than 146 seconds.
Not tainted 6.8.0-rc1-next-20240125-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:24624 pid:13788 tgid:13788 ppid:1 flags:0x00000006
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0xf15/0x5ce0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6804 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6819
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6876
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
rtnl_lock net/core/rtnetlink.c:79 [inline]
rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612
netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2543
netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline]
netlink_unicast+0x542/0x820 net/netlink/af_netlink.c:1367
netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1908
sock_sendmsg_nosec net/socket.c:730 [inline]
__sock_sendmsg net/socket.c:745 [inline]
__sys_sendto+0x47f/0x4e0 net/socket.c:2191
__do_sys_sendto net/socket.c:2203 [inline]
__se_sys_sendto net/socket.c:2199 [inline]
__x64_sys_sendto+0xe0/0x1c0 net/socket.c:2199
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7f21f407ea9c
RSP: 002b:00007ffe7993e040 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f21f4cd4620 RCX: 00007f21f407ea9c
RDX: 0000000000000040 RSI: 00007f21f4cd4670 RDI: 0000000000000003
RBP: 0000000000000000 R08: 00007ffe7993e094 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003
R13: 0000000000000000 R14: 00007f21f4cd4670 R15: 0000000000000000
INFO: task syz-executor.1:13811 blocked for more than 146 seconds.
Not tainted 6.8.0-rc1-next-20240125-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:24768 pid:13811 tgid:13811 ppid:1 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5400 [inline]
__schedule+0xf15/0x5ce0 kernel/sched/core.c:6727
__schedule_loop kernel/sched/core.c:6804 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6819
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6876
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x5b8/0x9c0 kernel/locking/mutex.c:752
nsim_init_netdevsim drivers/net/netdevsim/netdev.c:335 [inline]
nsim_create+0x414/0x600 drivers/net/netdevsim/netdev.c:401
__nsim_dev_port_add+0x427/0x7e0 drivers/net/netdevsim/dev.c:1390
nsim_dev_port_add_all drivers/net/netdevsim/dev.c:1446 [inline]
nsim_drv_probe+0xdbf/0x1490 drivers/net/netdevsim/dev.c:1604
call_driver_probe drivers/base/dd.c:579 [inline]
really_probe+0x23a/0xcb0 drivers/base/dd.c:658
__driver_probe_device+0x1de/0x4b0 drivers/base/dd.c:800
driver_probe_device+0x4c/0x1b0 drivers/base/dd.c:830
__device_attach_driver+0x1df/0x310 drivers/base/dd.c:958
bus_for_each_drv+0x157/0x1e0 drivers/base/bus.c:457
__device_attach+0x1e8/0x4b0 drivers/base/dd.c:1030
bus_probe_device+0x17f/0x1c0 drivers/base/bus.c:532
device_add+0x1188/0x1ab0 drivers/base/core.c:3625
nsim_bus_dev_new drivers/net/netdevsim/bus.c:297 [inline]
new_device_store+0x41d/0x730 drivers/net/netdevsim/bus.c:173
bus_attr_store+0x76/0xa0 drivers/base/bus.c:170
sysfs_kf_write+0x117/0x170 fs/sysfs/file.c:136
kernfs_fop_write_iter+0x343/0x500 fs/kernfs/file.c:334
call_write_iter include/linux/fs.h:2085 [inline]
new_sync_write fs/read_write.c:497 [inline]
vfs_write+0x6db/0x1100 fs/read_write.c:590
ksys_write+0x12f/0x260 fs/read_write.c:643
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xd2/0x260 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x6d/0x75
RIP: 0033:0x7fea68e7baef
RSP: 002b:00007ffe6d5cfe90 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fea68e7baef
RDX: 0000000000000003 RSI: 00007ffe6d5cfee0 RDI: 0000000000000005
RBP: 00007fea68ec9045 R08: 0000000000000000 R09: 00007ffe6d5cfce7
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000003
R13: 00007ffe6d5cfee0 R14: 00007fea69ad4620 R15: 0000000000000003
Showing all locks held in the system:
1 lock held by khungtaskd/29:
#0: ffffffff8d5b08e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:298 [inline]
#0: ffffffff8d5b08e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:750 [inline]
#0: ffffffff8d5b08e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x75/0x340 kernel/locking/lockdep.c:6614
1 lock held by dhcpcd/4727:
#0: ffffffff8f0b3ea8 (rtnl_mutex){+.+.}-{3:3}, at: netlink_dump+0xc1/0xcc0 net/netlink/af_netlink.c:2211
2 locks held by getty/4814:
#0: ffff88802b1760a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc900031332f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xfc8/0x1490 drivers/tty/n_tty.c:2201
1 lock held by syz-executor.2/5109:
#0: ffffffff8d5bbff8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline]
#0: ffffffff8d5bbff8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x682/0x7a0 kernel/rcu/tree_exp.h:939
5 locks held by kworker/u4:12/22223:
#0: ffff8880162f0938 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x7ba/0x16e0 kernel/workqueue.c:2608
#1: ffffc90014327d80 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x824/0x16e0 kernel/workqueue.c:2609
#2: ffffffff8f09e850 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x9f/0xb20 net/core/net_namespace.c:580
#3: ffffffff8f0b3ea8 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0x8f/0xb30 net/core/dev.c:11605
#4: ffffffff8d5bbec0 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x48/0x6c0 kernel/rcu/tree.c:4073
3 locks held by kworker/1:0/24844:
#0: ffff88802ac28538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x7ba/0x16e0 kernel/workqueue.c:2608
#1: ffffc90015127d80 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x824/0x16e0 kernel/workqueue.c:2609
#2: ffffffff8f0b3ea8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xcf/0x14c0 net/ipv6/addrconf.c:4129
3 locks held by kworker/1:7/10141:
#0: ffff888014c94d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7ba/0x16e0 kernel/workqueue.c:2608
#1: ffffc90014787d80 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x824/0x16e0 kernel/workqueue.c:2609
#2: ffffffff8f0b3ea8 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0x51/0xc0 net/core/link_watch.c:281
4 locks held by kworker/1:12/10145:
3 locks held by kworker/0:17/10154:
#0: ffff88802ac28538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x7ba/0x16e0 kernel/workqueue.c:2608
#1: ffffc90014467d80 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x824/0x16e0 kernel/workqueue.c:2609
#2: ffffffff8f0b3ea8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xcf/0x14c0 net/ipv6/addrconf.c:4129
3 locks held by kworker/1:15/10156:
#0: ffff888014c94d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7ba/0x16e0 kernel/workqueue.c:2608
#1: ffffc90018b9fd80 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x824/0x16e0 kernel/workqueue.c:2609
#2: ffffffff8f0b3ea8 (rtnl_mutex){+.+.}-{3:3}, at: switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:75
1 lock held by syz-executor.4/13780:
#0: ffffffff8f0b3ea8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f0b3ea8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612
1 lock held by syz-executor.0/13786:
#0: ffffffff8f0b3ea8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f0b3ea8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612
1 lock held by syz-executor.3/13788:
#0: ffffffff8f0b3ea8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f0b3ea8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612
7 locks held by syz-executor.1/13811:
#0: ffff88801dccc420 (sb_writers#8){.+.+}-{0:0}, at: ksys_write+0x12f/0x260 fs/read_write.c:643
#1: ffff88809dfe2888 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x281/0x500 fs/kernfs/file.c:325
#2: ffff88802250e6d0 (kn->active#51){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2a4/0x500 fs/kernfs/file.c:326
#3: ffffffff8e747628 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: new_device_store+0x187/0x730 drivers/net/netdevsim/bus.c:166
#4: ffff888083b120e8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:990 [inline]
#4: ffff888083b120e8 (&dev->mutex){....}-{3:3}, at: __device_attach+0x7f/0x4b0 drivers/base/dd.c:1005
#5: ffff888083b13250 (&devlink->lock_key#13){+.+.}-{3:3}, at: nsim_drv_probe+0xd5/0x1490 drivers/net/netdevsim/dev.c:1534
#6: ffffffff8f0b3ea8 (rtnl_mutex){+.+.}-{3:3}, at: nsim_init_netdevsim drivers/net/netdevsim/netdev.c:335 [inline]
#6: ffffffff8f0b3ea8 (rtnl_mutex){+.+.}-{3:3}, at: nsim_create+0x414/0x600 drivers/net/netdevsim/netdev.c:401
1 lock held by syz-executor.4/14037:
#0: ffffffff8f0b3ea8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f0b3ea8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612
1 lock held by syz-executor.3/14043:
#0: ffffffff8f0b3ea8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f0b3ea8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612
1 lock held by syz-executor.0/14045:
#0: ffffffff8f0b3ea8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f0b3ea8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612
1 lock held by syz-executor.1/14052:
#0: ffffffff8f0b3ea8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f0b3ea8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612
1 lock held by syz-executor.4/14262:
#0: ffffffff8f0b3ea8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f0b3ea8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612
1 lock held by syz-executor.3/14264:
#0: ffffffff8f0b3ea8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f0b3ea8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612
1 lock held by syz-executor.0/14269:
#0: ffffffff8f0b3ea8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f0b3ea8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612
1 lock held by syz-executor.1/14276:
#0: ffffffff8f0b3ea8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8f0b3ea8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x372/0xe10 net/core/rtnetlink.c:6612
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.8.0-rc1-next-20240125-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x27b/0x390 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x29c/0x300 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+0xf86/0x1210 kernel/hung_task.c:379
kthread+0x2c1/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:242
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 10145 Comm: kworker/1:12 Not tainted 6.8.0-rc1-next-20240125-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Workqueue: events nsim_dev_trap_report_work
RIP: 0010:kasan_check_range+0x158/0x1a0 mm/kasan/generic.c:190
Code: 74 11 80 38 00 74 ef 4d 8d 1c 2c 48 85 c0 48 89 c2 75 93 48 89 da 4c 89 d8 4c 29 da e9 2c ff ff ff 5b b8 01 00 00 00 5d 41 5c cc cc cc cc b8 01 00 00 00 c3 cc cc cc cc 48 29 c3 48 89 da 49
RSP: 0018:ffffc9001460f798 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff816b62ca
RDX: fffffbfff275c5f9 RSI: 0000000000000008 RDI: ffffffff93ae2fc0
RBP: 0000000000000003 R08: 0000000000000000 R09: fffffbfff275c5f8
R10: ffffffff93ae2fc7 R11: 0000000000000003 R12: 0000000000000000
R13: 0000000000000000 R14: ffff88809f044778 R15: 0000000000000080
FS: 0000000000000000(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe7f1cfcd8 CR3: 000000000d37a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read include/linux/instrumented.h:68 [inline]
_test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
__lock_acquire+0xeba/0x3b30 kernel/locking/lockdep.c:5107
lock_acquire kernel/locking/lockdep.c:5754 [inline]
lock_acquire+0x1b1/0x540 kernel/locking/lockdep.c:5719
debug_objects_fill_pool lib/debugobjects.c:614 [inline]
debug_object_activate+0x14c/0x540 lib/debugobjects.c:704
debug_work_activate kernel/workqueue.c:578 [inline]
insert_work+0x30/0x230 kernel/workqueue.c:1650
__queue_work+0x633/0x11d0 kernel/workqueue.c:1802
__queue_delayed_work+0x1bf/0x270 kernel/workqueue.c:1953
queue_delayed_work_on+0x10e/0x130 kernel/workqueue.c:1989
queue_delayed_work include/linux/workqueue.h:563 [inline]
schedule_delayed_work include/linux/workqueue.h:677 [inline]
nsim_dev_trap_report_work+0x9c0/0xc80 drivers/net/netdevsim/dev.c:842
process_one_work+0x8d5/0x16e0 kernel/workqueue.c:2633
process_scheduled_works kernel/workqueue.c:2707 [inline]
worker_thread+0x8b6/0x1290 kernel/workqueue.c:2788
kthread+0x2c1/0x3a0 kernel/kthread.c:388
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:242