INFO: task kworker/1:2:910 blocked for more than 143 seconds.
Not tainted 6.16.0-rc1-syzkaller-00004-gaef17cb3d3c4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:2 state:D stack:21256 pid:910 tgid:910 ppid:2 task_flags:0x4208160 flags:0x00004000
Workqueue: events smc_ib_port_event_work
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5396 [inline]
__schedule+0x116a/0x5de0 kernel/sched/core.c:6785
__schedule_loop kernel/sched/core.c:6863 [inline]
schedule+0xe7/0x3a0 kernel/sched/core.c:6878
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6935
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x6c7/0xb90 kernel/locking/mutex.c:747
ib_get_eth_speed+0x117/0xb50 drivers/infiniband/core/verbs.c:1995
rxe_query_port+0x108/0x330 drivers/infiniband/sw/rxe/rxe_verbs.c:62
__ib_query_port drivers/infiniband/core/device.c:2111 [inline]
ib_query_port drivers/infiniband/core/device.c:2143 [inline]
ib_query_port+0x43e/0x8a0 drivers/infiniband/core/device.c:2133
smc_ib_remember_port_attr net/smc/smc_ib.c:364 [inline]
smc_ib_port_event_work+0x12f/0xbf0 net/smc/smc_ib.c:388
process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3238
process_scheduled_works kernel/workqueue.c:3321 [inline]
worker_thread+0x6c8/0xf10 kernel/workqueue.c:3402
kthread+0x3c5/0x780 kernel/kthread.c:464
ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
</TASK>
INFO: task kworker/u8:10:4305 blocked for more than 143 seconds.
Not tainted 6.16.0-rc1-syzkaller-00004-gaef17cb3d3c4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:10 state:D stack:22120 pid:4305 tgid:4305 ppid:2 task_flags:0x4208060 flags:0x00004000
Workqueue: events_unbound linkwatch_event
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5396 [inline]
__schedule+0x116a/0x5de0 kernel/sched/core.c:6785
__schedule_loop kernel/sched/core.c:6863 [inline]
schedule+0xe7/0x3a0 kernel/sched/core.c:6878
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6935
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x6c7/0xb90 kernel/locking/mutex.c:747
linkwatch_event+0x51/0xc0 net/core/link_watch.c:303
process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3238
process_scheduled_works kernel/workqueue.c:3321 [inline]
worker_thread+0x6c8/0xf10 kernel/workqueue.c:3402
kthread+0x3c5/0x780 kernel/kthread.c:464
ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
</TASK>
INFO: task syz.1.2239:14347 blocked for more than 143 seconds.
Not tainted 6.16.0-rc1-syzkaller-00004-gaef17cb3d3c4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.2239 state:D stack:26520 pid:14347 tgid:14346 ppid:5828 task_flags:0x400140 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5396 [inline]
__schedule+0x116a/0x5de0 kernel/sched/core.c:6785
__schedule_loop kernel/sched/core.c:6863 [inline]
schedule+0xe7/0x3a0 kernel/sched/core.c:6878
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6935
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x6c7/0xb90 kernel/locking/mutex.c:747
ip_mroute_setsockopt+0x115/0x1040 net/ipv4/ipmr.c:1386
do_ip_setsockopt+0x2ae/0x3240 net/ipv4/ip_sockglue.c:948
ip_setsockopt+0x59/0xf0 net/ipv4/ip_sockglue.c:1417
raw_setsockopt+0xb7/0x2a0 net/ipv4/raw.c:845
do_sock_setsockopt+0x224/0x470 net/socket.c:2296
__sys_setsockopt+0x1a0/0x230 net/socket.c:2321
__do_sys_setsockopt net/socket.c:2327 [inline]
__se_sys_setsockopt net/socket.c:2324 [inline]
__x64_sys_setsockopt+0xbd/0x160 net/socket.c:2324
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f617c18e929
RSP: 002b:00007f617cf3f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f617c3b5fa0 RCX: 00007f617c18e929
RDX: 00000000000000c8 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007f617c210b39 R08: 0000000000000004 R09: 0000000000000000
R10: 0000200000003d40 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f617c3b5fa0 R15: 00007ffe4b65f588
</TASK>
INFO: task syz.1.2239:14350 blocked for more than 144 seconds.
Not tainted 6.16.0-rc1-syzkaller-00004-gaef17cb3d3c4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.2239 state:D stack:29288 pid:14350 tgid:14346 ppid:5828 task_flags:0x400040 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5396 [inline]
__schedule+0x116a/0x5de0 kernel/sched/core.c:6785
__schedule_loop kernel/sched/core.c:6863 [inline]
schedule+0xe7/0x3a0 kernel/sched/core.c:6878
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6935
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x6c7/0xb90 kernel/locking/mutex.c:747
ip_mroute_setsockopt+0x115/0x1040 net/ipv4/ipmr.c:1386
do_ip_setsockopt+0x2ae/0x3240 net/ipv4/ip_sockglue.c:948
ip_setsockopt+0x59/0xf0 net/ipv4/ip_sockglue.c:1417
raw_setsockopt+0xb7/0x2a0 net/ipv4/raw.c:845
do_sock_setsockopt+0x224/0x470 net/socket.c:2296
__sys_setsockopt+0x1a0/0x230 net/socket.c:2321
__do_sys_setsockopt net/socket.c:2327 [inline]
__se_sys_setsockopt net/socket.c:2324 [inline]
__x64_sys_setsockopt+0xbd/0x160 net/socket.c:2324
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f617c18e929
RSP: 002b:00007f617cf1e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f617c3b6080 RCX: 00007f617c18e929
RDX: 00000000000000ca RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007f617c210b39 R08: 0000000000000010 R09: 0000000000000000
R10: 0000200000000100 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f617c3b6080 R15: 00007ffe4b65f588
</TASK>
INFO: task syz.1.2239:14351 blocked for more than 144 seconds.
Not tainted 6.16.0-rc1-syzkaller-00004-gaef17cb3d3c4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.2239 state:D stack:29288 pid:14351 tgid:14346 ppid:5828 task_flags:0x400040 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5396 [inline]
__schedule+0x116a/0x5de0 kernel/sched/core.c:6785
__schedule_loop kernel/sched/core.c:6863 [inline]
schedule+0xe7/0x3a0 kernel/sched/core.c:6878
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6935
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x6c7/0xb90 kernel/locking/mutex.c:747
do_ip_setsockopt+0xf6/0x3240 net/ipv4/ip_sockglue.c:1077
ip_setsockopt+0x59/0xf0 net/ipv4/ip_sockglue.c:1417
raw_setsockopt+0xb7/0x2a0 net/ipv4/raw.c:845
do_sock_setsockopt+0x224/0x470 net/socket.c:2296
__sys_setsockopt+0x1a0/0x230 net/socket.c:2321
__do_sys_setsockopt net/socket.c:2327 [inline]
__se_sys_setsockopt net/socket.c:2324 [inline]
__x64_sys_setsockopt+0xbd/0x160 net/socket.c:2324
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f617c18e929
RSP: 002b:00007f6179ff6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f617c3b6160 RCX: 00007f617c18e929
RDX: 0000000000000024 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007f617c210b39 R08: 0000000000000008 R09: 0000000000000000
R10: 0000200000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f617c3b6160 R15: 00007ffe4b65f588
</TASK>
INFO: task syz.1.2239:14352 blocked for more than 144 seconds.
Not tainted 6.16.0-rc1-syzkaller-00004-gaef17cb3d3c4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.2239 state:D stack:29288 pid:14352 tgid:14346 ppid:5828 task_flags:0x400040 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5396 [inline]
__schedule+0x116a/0x5de0 kernel/sched/core.c:6785
__schedule_loop kernel/sched/core.c:6863 [inline]
schedule+0xe7/0x3a0 kernel/sched/core.c:6878
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6935
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x6c7/0xb90 kernel/locking/mutex.c:747
ip_mroute_setsockopt+0x115/0x1040 net/ipv4/ipmr.c:1386
do_ip_setsockopt+0x2ae/0x3240 net/ipv4/ip_sockglue.c:948
ip_setsockopt+0x59/0xf0 net/ipv4/ip_sockglue.c:1417
raw_setsockopt+0xb7/0x2a0 net/ipv4/raw.c:845
do_sock_setsockopt+0x224/0x470 net/socket.c:2296
__sys_setsockopt+0x1a0/0x230 net/socket.c:2321
__do_sys_setsockopt net/socket.c:2327 [inline]
__se_sys_setsockopt net/socket.c:2324 [inline]
__x64_sys_setsockopt+0xbd/0x160 net/socket.c:2324
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f617c18e929
RSP: 002b:00007f6179bd3038 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f617c3b6240 RCX: 00007f617c18e929
RDX: 00000000000000d2 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 00007f617c210b39 R08: 000000000000003c R09: 0000000000000000
R10: 00002000000000c0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f617c3b6240 R15: 00007ffe4b65f588
</TASK>
INFO: task syz.4.2245:14380 blocked for more than 144 seconds.
Not tainted 6.16.0-rc1-syzkaller-00004-gaef17cb3d3c4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.2245 state:D stack:29016 pid:14380 tgid:14379 ppid:5823 task_flags:0x400140 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5396 [inline]
__schedule+0x116a/0x5de0 kernel/sched/core.c:6785
__schedule_loop kernel/sched/core.c:6863 [inline]
schedule+0xe7/0x3a0 kernel/sched/core.c:6878
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6935
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x6c7/0xb90 kernel/locking/mutex.c:747
rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
arp_ioctl+0x765/0xcf0 net/ipv4/arp.c:1298
inet_ioctl+0x362/0x3f0 net/ipv4/af_inet.c:979
sock_do_ioctl+0x118/0x280 net/socket.c:1190
sock_ioctl+0x227/0x6b0 net/socket.c:1311
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:907 [inline]
__se_sys_ioctl fs/ioctl.c:893 [inline]
__x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:893
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbfb1d8e929
RSP: 002b:00007fbfb2c42038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fbfb1fb5fa0 RCX: 00007fbfb1d8e929
RDX: 0000200000000180 RSI: 0000000000008953 RDI: 0000000000000003
RBP: 00007fbfb1e10b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fbfb1fb5fa0 R15: 00007ffc7cf60a08
</TASK>
INFO: task syz.3.2246:14382 blocked for more than 145 seconds.
Not tainted 6.16.0-rc1-syzkaller-00004-gaef17cb3d3c4 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.2246 state:D stack:27560 pid:14382 tgid:14381 ppid:5815 task_flags:0x400140 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5396 [inline]
__schedule+0x116a/0x5de0 kernel/sched/core.c:6785
__schedule_loop kernel/sched/core.c:6863 [inline]
schedule+0xe7/0x3a0 kernel/sched/core.c:6878
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6935
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0x6c7/0xb90 kernel/locking/mutex.c:747
rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
register_netdevice_notifier_net+0x23/0xb0 net/core/dev.c:2083
ops_init+0x1df/0x5f0 net/core/net_namespace.c:138
setup_net+0x1ff/0x510 net/core/net_namespace.c:442
copy_net_ns+0x2a6/0x5f0 net/core/net_namespace.c:574
create_new_namespaces+0x3ea/0xa90 kernel/nsproxy.c:110
unshare_nsproxy_namespaces+0xc0/0x1f0 kernel/nsproxy.c:218
ksys_unshare+0x45b/0xa40 kernel/fork.c:3121
__do_sys_unshare kernel/fork.c:3192 [inline]
__se_sys_unshare kernel/fork.c:3190 [inline]
__x64_sys_unshare+0x31/0x40 kernel/fork.c:3190
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff3deb8e929
RSP: 002b:00007ff3dfa7d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007ff3dedb5fa0 RCX: 00007ff3deb8e929
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000006a040000
RBP: 00007ff3dec10b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ff3dedb5fa0 R15: 00007ffe96ee8488
</TASK>
Showing all locks held in the system:
3 locks held by kworker/0:0/9:
#0: ffff88801b879d48 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x12a2/0x1b70 kernel/workqueue.c:3213
#1: ffffc900000e7d10 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x929/0x1b70 kernel/workqueue.c:3214
#2: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: reg_check_chans_work+0x83/0x1170 net/wireless/reg.c:2483
1 lock held by khungtaskd/31:
#0: ffffffff8e5c4840 (rcu_read_lock){....}-{1:3}, at: rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
#0: ffffffff8e5c4840 (rcu_read_lock){....}-{1:3}, at: rcu_read_lock include/linux/rcupdate.h:841 [inline]
#0: ffffffff8e5c4840 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x36/0x1c0 kernel/locking/lockdep.c:6770
3 locks held by kworker/u8:3/49:
#0: ffff88814c724948 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x12a2/0x1b70 kernel/workqueue.c:3213
#1: ffffc90000ba7d10 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x929/0x1b70 kernel/workqueue.c:3214
#2: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
#2: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: addrconf_verify_work+0x12/0x30 net/ipv6/addrconf.c:4738
4 locks held by kworker/1:2/910:
#0: ffff88801b878d48 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x12a2/0x1b70 kernel/workqueue.c:3213
#1: ffffc90003a37d10 ((work_completion)(&smcibdev->port_event_work)){+.+.}-{0:0}, at: process_one_work+0x929/0x1b70 kernel/workqueue.c:3214
#2: ffff888024ff9258 (&rxe->usdev_lock){+.+.}-{4:4}, at: rxe_query_port+0xf1/0x330 drivers/infiniband/sw/rxe/rxe_verbs.c:61
#3: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: ib_get_eth_speed+0x117/0xb50 drivers/infiniband/core/verbs.c:1995
3 locks held by kworker/u8:10/4305:
#0: ffff88801b881148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x12a2/0x1b70 kernel/workqueue.c:3213
#1: ffffc9000f627d10 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x929/0x1b70 kernel/workqueue.c:3214
#2: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: linkwatch_event+0x51/0xc0 net/core/link_watch.c:303
1 lock held by klogd/5181:
#0: ffff8880b843bc98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested kernel/sched/core.c:614 [inline]
#0: ffff8880b843bc98 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x7e/0x130 kernel/sched/core.c:599
2 locks held by getty/5580:
#0: ffff8880327cf0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x24/0x80 drivers/tty/tty_ldisc.c:243
#1: ffffc9000332b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x41b/0x14f0 drivers/tty/n_tty.c:2222
2 locks held by syz.2.2237/14343:
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline]
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_nets_lock net/core/rtnetlink.c:341 [inline]
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_newlink+0x600/0x2000 net/core/rtnetlink.c:4054
#1: ffff888033318d30 (&dev_instance_lock_key#14){+.+.}-{4:4}, at: netdev_lock include/linux/netdevice.h:2756 [inline]
#1: ffff888033318d30 (&dev_instance_lock_key#14){+.+.}-{4:4}, at: napi_disable+0x3b/0x80 net/core/dev.c:7328
1 lock held by syz.1.2239/14347:
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: ip_mroute_setsockopt+0x115/0x1040 net/ipv4/ipmr.c:1386
1 lock held by syz.1.2239/14350:
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: ip_mroute_setsockopt+0x115/0x1040 net/ipv4/ipmr.c:1386
1 lock held by syz.1.2239/14351:
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: do_ip_setsockopt+0xf6/0x3240 net/ipv4/ip_sockglue.c:1077
1 lock held by syz.1.2239/14352:
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: ip_mroute_setsockopt+0x115/0x1040 net/ipv4/ipmr.c:1386
1 lock held by syz.4.2245/14380:
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: arp_ioctl+0x765/0xcf0 net/ipv4/arp.c:1298
2 locks held by syz.3.2246/14382:
#0: ffffffff90336b90 (pernet_ops_rwsem){++++}-{4:4}, at: copy_net_ns+0x286/0x5f0 net/core/net_namespace.c:570
#1: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
#1: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: register_netdevice_notifier_net+0x23/0xb0 net/core/dev.c:2083
1 lock held by syz.0.2249/14395:
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_lock net/core/rtnetlink.c:80 [inline]
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnetlink_rcv_msg+0x371/0xe90 net/core/rtnetlink.c:6950
1 lock held by syz-executor/14402:
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x30c/0x1540 net/ipv4/devinet.c:979
1 lock held by syz-executor/14406:
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x30c/0x1540 net/ipv4/devinet.c:979
1 lock held by syz-executor/14410:
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x30c/0x1540 net/ipv4/devinet.c:979
1 lock held by syz-executor/14412:
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x30c/0x1540 net/ipv4/devinet.c:979
1 lock held by syz-executor/14416:
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x30c/0x1540 net/ipv4/devinet.c:979
1 lock held by syz-executor/14425:
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x30c/0x1540 net/ipv4/devinet.c:979
1 lock held by syz-executor/14432:
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x30c/0x1540 net/ipv4/devinet.c:979
1 lock held by syz-executor/14436:
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x30c/0x1540 net/ipv4/devinet.c:979
1 lock held by syz-executor/14438:
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x30c/0x1540 net/ipv4/devinet.c:979
1 lock held by syz-executor/14441:
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x30c/0x1540 net/ipv4/devinet.c:979
1 lock held by syz-executor/14448:
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x30c/0x1540 net/ipv4/devinet.c:979
1 lock held by syz-executor/14452:
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x30c/0x1540 net/ipv4/devinet.c:979
1 lock held by syz-executor/14457:
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x30c/0x1540 net/ipv4/devinet.c:979
1 lock held by syz-executor/14460:
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x30c/0x1540 net/ipv4/devinet.c:979
1 lock held by syz-executor/14468:
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: rtnl_net_lock include/linux/rtnetlink.h:130 [inline]
#0: ffffffff9034cbe8 (rtnl_mutex){+.+.}-{4:4}, at: inet_rtm_newaddr+0x30c/0x1540 net/ipv4/devinet.c:979
=============================================
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 31 Comm: khungtaskd Not tainted 6.16.0-rc1-syzkaller-00004-gaef17cb3d3c4 #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
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:158 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:307 [inline]
watchdog+0xf70/0x12c0 kernel/hung_task.c:470
kthread+0x3c5/0x780 kernel/kthread.c:464
ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
</TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Not tainted 6.16.0-rc1-syzkaller-00004-gaef17cb3d3c4 #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:pv_native_safe_halt+0xf/0x20 arch/x86/kernel/paravirt.c:82
Code: bb 72 02 e9 03 fb 02 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 23 50 2a 00 fb f4 <c3> cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
RSP: 0018:ffffffff8e207e08 EFLAGS: 000002c6
RAX: 00000000048acf85 RBX: 0000000000000000 RCX: ffffffff8b7fbc99
RDX: 0000000000000000 RSI: ffffffff8de18f75 RDI: ffffffff8c1570a0
RBP: fffffbfff1c52ef0 R08: 0000000000000001 R09: ffffed1017086645
R10: ffff8880b843322b R11: 0000000000000001 R12: 0000000000000000
R13: ffffffff8e297780 R14: ffffffff90a80c50 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff888124754000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005651868757c8 CR3: 000000002e9f6000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
arch_safe_halt arch/x86/include/asm/paravirt.h:107 [inline]
default_idle+0x13/0x20 arch/x86/kernel/process.c:749
default_idle_call+0x6d/0xb0 kernel/sched/idle.c:117
cpuidle_idle_call kernel/sched/idle.c:185 [inline]
do_idle+0x391/0x510 kernel/sched/idle.c:325
cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:423
rest_init+0x16b/0x2b0 init/main.c:744
start_kernel+0x3ee/0x4d0 init/main.c:1101
x86_64_start_reservations+0x18/0x30 arch/x86/kernel/head64.c:307
x86_64_start_kernel+0x130/0x190 arch/x86/kernel/head64.c:288
common_startup_64+0x13e/0x148
</TASK>