INFO: task kworker/u4:7:9521 blocked for more than 143 seconds.
Not tainted 5.16.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:7 state:D stack:24496 pid: 9521 ppid: 2 flags:0x00004000
Workqueue: netns cleanup_net
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6253
schedule+0xd2/0x260 kernel/sched/core.c:6326
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6385
__mutex_lock_common kernel/locking/mutex.c:680 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:740
ip6gre_exit_batch_net+0x88/0x760 net/ipv6/ip6_gre.c:1626
ops_exit_list+0x10d/0x160 net/core/net_namespace.c:171
cleanup_net+0x4ea/0xb00 net/core/net_namespace.c:593
process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298
worker_thread+0x658/0x11f0 kernel/workqueue.c:2445
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
INFO: task kworker/1:0:15398 blocked for more than 143 seconds.
Not tainted 5.16.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:0 state:D stack:27216 pid:15398 ppid: 2 flags:0x00004000
Workqueue: events nsim_dev_trap_report_work
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6253
schedule+0xd2/0x260 kernel/sched/core.c:6326
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6385
__mutex_lock_common kernel/locking/mutex.c:680 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:740
nsim_dev_trap_report_work+0x5d/0xbc0 drivers/net/netdevsim/dev.c:838
process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298
worker_thread+0x658/0x11f0 kernel/workqueue.c:2445
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
INFO: task kworker/1:3:18664 blocked for more than 143 seconds.
Not tainted 5.16.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:3 state:D stack:26648 pid:18664 ppid: 2 flags:0x00004000
Workqueue: ipv6_addrconf addrconf_dad_work
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6253
schedule+0xd2/0x260 kernel/sched/core.c:6326
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6385
__mutex_lock_common kernel/locking/mutex.c:680 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:740
addrconf_dad_work+0xa3/0x1340 net/ipv6/addrconf.c:4052
process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298
worker_thread+0x658/0x11f0 kernel/workqueue.c:2445
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
INFO: task kworker/0:3:22742 blocked for more than 143 seconds.
Not tainted 5.16.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:3 state:D stack:28808 pid:22742 ppid: 2 flags:0x00004000
Workqueue: events_power_efficient reg_check_chans_work
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6253
schedule+0xd2/0x260 kernel/sched/core.c:6326
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6385
__mutex_lock_common kernel/locking/mutex.c:680 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:740
reg_check_chans_work+0x83/0xe10 net/wireless/reg.c:2423
process_one_work+0x9b2/0x1690 kernel/workqueue.c:2298
worker_thread+0x658/0x11f0 kernel/workqueue.c:2445
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
INFO: task syz-executor.1:22750 blocked for more than 144 seconds.
Not tainted 5.16.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:27216 pid:22750 ppid: 6512 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6253
schedule+0xd2/0x260 kernel/sched/core.c:6326
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6385
__mutex_lock_common kernel/locking/mutex.c:680 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:740
devlink_nl_port_fill+0x17a/0x16b0 net/core/devlink.c:1071
devlink_port_notify+0xd0/0x200 net/core/devlink.c:1132
__devlink_port_type_set+0x128/0x170 net/core/devlink.c:9280
devlink_port_type_clear+0x1c/0xe0 net/core/devlink.c:9360
__nsim_dev_port_del+0x167/0x250 drivers/net/netdevsim/dev.c:1428
nsim_dev_port_del_all drivers/net/netdevsim/dev.c:1442 [inline]
nsim_dev_reload_destroy+0x12b/0x300 drivers/net/netdevsim/dev.c:1650
nsim_dev_reload_down+0xdf/0x180 drivers/net/netdevsim/dev.c:964
devlink_reload+0x53b/0x6b0 net/core/devlink.c:4042
devlink_nl_cmd_reload+0x6ed/0x11d0 net/core/devlink.c:4163
genl_family_rcv_msg_doit+0x228/0x320 net/netlink/genetlink.c:731
genl_family_rcv_msg net/netlink/genetlink.c:775 [inline]
genl_rcv_msg+0x328/0x580 net/netlink/genetlink.c:792
netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2487
genl_rcv+0x24/0x40 net/netlink/genetlink.c:803
netlink_unicast_kernel net/netlink/af_netlink.c:1315 [inline]
netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1341
netlink_sendmsg+0x86d/0xda0 net/netlink/af_netlink.c:1912
sock_sendmsg_nosec net/socket.c:704 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:724
____sys_sendmsg+0x6e8/0x810 net/socket.c:2409
___sys_sendmsg+0xf3/0x170 net/socket.c:2463
__sys_sendmsg+0xe5/0x1b0 net/socket.c:2492
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f2885263ae9
RSP: 002b:00007f28827d9188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f2885376f60 RCX: 00007f2885263ae9
RDX: 0000000000000000 RSI: 00000000200003c0 RDI: 0000000000000005
RBP: 00007f28852bdf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffedc437fef R14: 00007f28827d9300 R15: 0000000000022000
INFO: task syz-executor.1:22752 blocked for more than 144 seconds.
Not tainted 5.16.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28520 pid:22752 ppid: 6512 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6253
schedule+0xd2/0x260 kernel/sched/core.c:6326
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6385
__mutex_lock_common kernel/locking/mutex.c:680 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:740
rtnl_lock net/core/rtnetlink.c:72 [inline]
rtnetlink_rcv_msg+0x3be/0xb80 net/core/rtnetlink.c:5568
netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2487
netlink_unicast_kernel net/netlink/af_netlink.c:1315 [inline]
netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1341
netlink_sendmsg+0x86d/0xda0 net/netlink/af_netlink.c:1912
sock_sendmsg_nosec net/socket.c:704 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:724
____sys_sendmsg+0x6e8/0x810 net/socket.c:2409
___sys_sendmsg+0xf3/0x170 net/socket.c:2463
__sys_sendmsg+0xe5/0x1b0 net/socket.c:2492
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f2885263ae9
RSP: 002b:00007f28827b8188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f2885377020 RCX: 00007f2885263ae9
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000003
RBP: 00007f28852bdf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffedc437fef R14: 00007f28827b8300 R15: 0000000000022000
INFO: task syz-executor.1:22785 blocked for more than 145 seconds.
Not tainted 5.16.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28560 pid:22785 ppid: 6512 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6253
schedule+0xd2/0x260 kernel/sched/core.c:6326
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6385
__mutex_lock_common kernel/locking/mutex.c:680 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:740
genl_lock net/netlink/genetlink.c:33 [inline]
genl_rcv_msg+0x3e0/0x580 net/netlink/genetlink.c:790
netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2487
genl_rcv+0x24/0x40 net/netlink/genetlink.c:803
netlink_unicast_kernel net/netlink/af_netlink.c:1315 [inline]
netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1341
netlink_sendmsg+0x86d/0xda0 net/netlink/af_netlink.c:1912
sock_sendmsg_nosec net/socket.c:704 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:724
____sys_sendmsg+0x6e8/0x810 net/socket.c:2409
___sys_sendmsg+0xf3/0x170 net/socket.c:2463
__sys_sendmsg+0xe5/0x1b0 net/socket.c:2492
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f2885263ae9
RSP: 002b:00007f2882797188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f28853770e0 RCX: 00007f2885263ae9
RDX: 0000000000000000 RSI: 00000000200003c0 RDI: 0000000000000006
RBP: 00007f28852bdf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffedc437fef R14: 00007f2882797300 R15: 0000000000022000
INFO: task syz-executor.1:22786 blocked for more than 145 seconds.
Not tainted 5.16.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:29032 pid:22786 ppid: 6512 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6253
schedule+0xd2/0x260 kernel/sched/core.c:6326
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6385
__mutex_lock_common kernel/locking/mutex.c:680 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:740
genl_lock net/netlink/genetlink.c:33 [inline]
genl_rcv_msg+0x3e0/0x580 net/netlink/genetlink.c:790
netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2487
genl_rcv+0x24/0x40 net/netlink/genetlink.c:803
netlink_unicast_kernel net/netlink/af_netlink.c:1315 [inline]
netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1341
netlink_sendmsg+0x86d/0xda0 net/netlink/af_netlink.c:1912
sock_sendmsg_nosec net/socket.c:704 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:724
__sys_sendto+0x21c/0x320 net/socket.c:2036
__do_sys_sendto net/socket.c:2048 [inline]
__se_sys_sendto net/socket.c:2044 [inline]
__x64_sys_sendto+0xdd/0x1b0 net/socket.c:2044
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f28852168ac
RSP: 002b:00007f2882775020 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f2882775110 RCX: 00007f28852168ac
RDX: 0000000000000020 RSI: 00007f2882775160 RDI: 0000000000000005
RBP: 0000000000000000 R08: 00007f2882775074 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 00007f28827750c8
R13: 00007f2882775160 R14: 0000000000000005 R15: 0000000000000000
INFO: task syz-executor.1:22788 blocked for more than 145 seconds.
Not tainted 5.16.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28576 pid:22788 ppid: 6512 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6253
schedule+0xd2/0x260 kernel/sched/core.c:6326
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6385
__mutex_lock_common kernel/locking/mutex.c:680 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:740
rtnl_lock net/core/rtnetlink.c:72 [inline]
rtnetlink_rcv_msg+0x3be/0xb80 net/core/rtnetlink.c:5568
netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2487
netlink_unicast_kernel net/netlink/af_netlink.c:1315 [inline]
netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1341
netlink_sendmsg+0x86d/0xda0 net/netlink/af_netlink.c:1912
sock_sendmsg_nosec net/socket.c:704 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:724
____sys_sendmsg+0x6e8/0x810 net/socket.c:2409
___sys_sendmsg+0xf3/0x170 net/socket.c:2463
__sys_sendmsg+0xe5/0x1b0 net/socket.c:2492
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f2885263ae9
RSP: 002b:00007f2882734188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f2885377320 RCX: 00007f2885263ae9
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000003
RBP: 00007f28852bdf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffedc437fef R14: 00007f2882734300 R15: 0000000000022000
INFO: task syz-executor.5:22764 blocked for more than 146 seconds.
Not tainted 5.16.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:26840 pid:22764 ppid: 6935 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xa9a/0x4940 kernel/sched/core.c:6253
schedule+0xd2/0x260 kernel/sched/core.c:6326
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6385
__mutex_lock_common kernel/locking/mutex.c:680 [inline]
__mutex_lock+0xa32/0x12f0 kernel/locking/mutex.c:740
__tun_chr_ioctl.isra.0+0x5b6/0x4230 drivers/net/tun.c:3016
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl fs/ioctl.c:860 [inline]
__x64_sys_ioctl+0x193/0x200 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f3d48f41ae9
RSP: 002b:00007f3d46475188 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f3d490550e0 RCX: 00007f3d48f41ae9
RDX: 00000000200000c0 RSI: 00000000400454ca RDI: 0000000000000004
RBP: 00007f3d48f9bf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffed413052f R14: 00007f3d46475300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by khungtaskd/26:
#0: ffffffff8bb83b60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6458
1 lock held by in:imklog/6220:
#0: ffff88807253a370 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:990
4 locks held by kworker/u4:7/9521:
#0: ffff88814075b138 ((wq_completion)netns){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff88814075b138 ((wq_completion)netns){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff88814075b138 ((wq_completion)netns){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline]
#0: ffff88814075b138 ((wq_completion)netns){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:635 [inline]
#0: ffff88814075b138 ((wq_completion)netns){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:662 [inline]
#0: ffff88814075b138 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x896/0x1690 kernel/workqueue.c:2269
#1: ffffc90004c27db0 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1690 kernel/workqueue.c:2273
#2: ffffffff8d2fef50 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x9b/0xb00 net/core/net_namespace.c:555
#3: ffffffff8d312068 (rtnl_mutex){+.+.}-{3:3}, at: ip6gre_exit_batch_net+0x88/0x760 net/ipv6/ip6_gre.c:1626
3 locks held by kworker/1:0/15398:
#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:1198 [inline]
#0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:635 [inline]
#0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:662 [inline]
#0: ffff888010c64d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x896/0x1690 kernel/workqueue.c:2269
#1: ffffc9000bee7db0 ((work_completion)(&(&nsim_dev->trap_data->trap_report_dw)->work)){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1690 kernel/workqueue.c:2273
#2: ffff888073285490 (&nsim_dev->port_list_lock#2){+.+.}-{3:3}, at: nsim_dev_trap_report_work+0x5d/0xbc0 drivers/net/netdevsim/dev.c:838
2 locks held by kworker/u4:6/16310:
3 locks held by kworker/1:3/18664:
#0: ffff88814ae88d38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff88814ae88d38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff88814ae88d38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline]
#0: ffff88814ae88d38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:635 [inline]
#0: ffff88814ae88d38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:662 [inline]
#0: ffff88814ae88d38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x896/0x1690 kernel/workqueue.c:2269
#1: ffffc9000bbb7db0 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1690 kernel/workqueue.c:2273
#2: ffffffff8d312068 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xa3/0x1340 net/ipv6/addrconf.c:4052
3 locks held by syz-executor.0/22737:
3 locks held by kworker/0:3/22742:
#0: ffff888010c65d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888010c65d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888010c65d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1198 [inline]
#0: ffff888010c65d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:635 [inline]
#0: ffff888010c65d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:662 [inline]
#0: ffff888010c65d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x896/0x1690 kernel/workqueue.c:2269
#1: ffffc9000bb1fdb0 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x8ca/0x1690 kernel/workqueue.c:2273
#2: ffffffff8d312068 (rtnl_mutex){+.+.}-{3:3}, at: reg_check_chans_work+0x83/0xe10 net/wireless/reg.c:2423
6 locks held by syz-executor.1/22750:
#0: ffffffff8d3a4a50 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:802
#1: ffffffff8d3a4b08 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8d3a4b08 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x3e0/0x580 net/netlink/genetlink.c:790
#2: ffffffff8d33ed68 (devlink_mutex){+.+.}-{3:3}, at: devlink_nl_pre_doit+0x2b/0xa00 net/core/devlink.c:577
#3: ffff8880732835c0 (&nsim_bus_dev->nsim_bus_reload_lock){+.+.}-{3:3}, at: nsim_dev_reload_down+0x4d/0x180 drivers/net/netdevsim/dev.c:951
#4: ffff888073285490 (&nsim_dev->port_list_lock#2){+.+.}-{3:3}, at: nsim_dev_port_del_all drivers/net/netdevsim/dev.c:1439 [inline]
#4: ffff888073285490 (&nsim_dev->port_list_lock#2){+.+.}-{3:3}, at: nsim_dev_reload_destroy+0xca/0x300 drivers/net/netdevsim/dev.c:1650
#5: ffffffff8d312068 (rtnl_mutex){+.+.}-{3:3}, at: devlink_nl_port_fill+0x17a/0x16b0 net/core/devlink.c:1071
1 lock held by syz-executor.1/22752:
#0: ffffffff8d312068 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8d312068 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 net/core/rtnetlink.c:5568
2 locks held by syz-executor.1/22785:
#0: ffffffff8d3a4a50 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:802
#1: ffffffff8d3a4b08 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8d3a4b08 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x3e0/0x580 net/netlink/genetlink.c:790
2 locks held by syz-executor.1/22786:
#0: ffffffff8d3a4a50 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:802
#1: ffffffff8d3a4b08 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8d3a4b08 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x3e0/0x580 net/netlink/genetlink.c:790
1 lock held by syz-executor.1/22788:
#0: ffffffff8d312068 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8d312068 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3be/0xb80 net/core/rtnetlink.c:5568
1 lock held by syz-executor.5/22764:
#0: ffffffff8d312068 (rtnl_mutex){+.+.}-{3:3}, at: __tun_chr_ioctl.isra.0+0x5b6/0x4230 drivers/net/tun.c:3016
1 lock held by syz-executor.5/22769:
#0: ffffffff8d312068 (rtnl_mutex){+.+.}-{3:3}, at: __tun_chr_ioctl.isra.0+0x415/0x4230 drivers/net/tun.c:2888
1 lock held by syz-executor.5/22771:
#0: ffffffff8d312068 (rtnl_mutex){+.+.}-{3:3}, at: __tun_chr_ioctl.isra.0+0x1a5/0x4230 drivers/net/tun.c:3016
2 locks held by syz-executor.2/22760:
#0: ffffffff8d3a4a50 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:802
#1: ffffffff8d3a4b08 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8d3a4b08 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x3e0/0x580 net/netlink/genetlink.c:790
2 locks held by syz-executor.2/22763:
#0: ffffffff8d3a4a50 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:802
#1: ffffffff8d3a4b08 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8d3a4b08 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x3e0/0x580 net/netlink/genetlink.c:790
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 26 Comm: khungtaskd Not tainted 5.16.0-rc1-syzkaller #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+0x1b3/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
watchdog+0xc1d/0xf50 kernel/hung_task.c:295
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 22737 Comm: syz-executor.0 Not tainted 5.16.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:check_region_inline mm/kasan/generic.c:170 [inline]
RIP: 0010:kasan_check_range+0x12c/0x180 mm/kasan/generic.c:189
Code: 00 74 ef 49 8d 04 2c 48 85 d2 75 0b 48 89 da 48 29 c2 e9 55 ff ff ff 49 39 d2 75 17 49 0f be 02 41 83 e1 07 49 39 c1 7d 0a 5b 01 00 00 00 5d 41 5c c3 44 89 c2 e8 53 ef ff ff 5b 83 f0 01 5d
RSP: 0018:ffffc9000c99e2f0 EFLAGS: 00000046
RAX: fffffbfff1fefb41 RBX: 1ffff92001933c68 RCX: ffffffff815c2f8f
RDX: fffffbfff1fefb41 RSI: 0000000000000008 RDI: ffffffff8ff7da00
RBP: fffffbfff1fefb40 R08: 0000000000000000 R09: ffffffff8ff7da07
R10: fffffbfff1fefb40 R11: 0000000000000001 R12: 0000000000000009
R13: ffff88801e068ab0 R14: 0000000000000028 R15: ffff88801e068ad0
FS: 00007f0d08160700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f11c2c39000 CR3: 000000002cafa000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
instrument_atomic_read include/linux/instrumented.h:71 [inline]
test_bit include/asm-generic/bitops/instrumented-non-atomic.h:134 [inline]
hlock_class kernel/locking/lockdep.c:199 [inline]
mark_lock+0xef/0x17b0 kernel/locking/lockdep.c:4583
mark_usage kernel/locking/lockdep.c:4526 [inline]
__lock_acquire+0x8a7/0x54a0 kernel/locking/lockdep.c:4981
lock_acquire kernel/locking/lockdep.c:5637 [inline]
lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5602
rcu_lock_acquire include/linux/rcupdate.h:268 [inline]
rcu_read_lock include/linux/rcupdate.h:688 [inline]
__update_idle_core+0x68/0x460 kernel/sched/fair.c:6139
update_idle_core kernel/sched/sched.h:1356 [inline]
set_next_task_idle+0x16/0x60 kernel/sched/idle.c:438
pick_next_task_idle+0x3b/0x50 kernel/sched/idle.c:454
__pick_next_task kernel/sched/core.c:5600 [inline]
pick_next_task kernel/sched/core.c:5677 [inline]
__schedule+0x33be/0x4940 kernel/sched/core.c:6217
schedule+0xd2/0x260 kernel/sched/core.c:6326
schedule_hrtimeout_range_clock+0x195/0x390 kernel/time/hrtimer.c:2305
usleep_range+0x10a/0x170 kernel/time/timer.c:2075
napi_disable+0xfa/0x110 net/core/dev.c:6270
veth_napi_del_range+0xc5/0x560 drivers/net/veth.c:976
veth_napi_del drivers/net/veth.c:991 [inline]
veth_set_features+0x156/0x190 drivers/net/veth.c:1419
__netdev_update_features+0x741/0x1840 net/core/dev.c:9323
netdev_update_features+0x63/0xd0 net/core/dev.c:9397
veth_xdp_set drivers/net/veth.c:1510 [inline]
veth_xdp+0x448/0x780 drivers/net/veth.c:1523
dev_xdp_install+0xd5/0x270 net/core/dev.c:8723
dev_xdp_attach+0x83d/0x1010 net/core/dev.c:8871
dev_change_xdp_fd+0x246/0x300 net/core/dev.c:9111
do_setlink+0x2fb4/0x3970 net/core/rtnetlink.c:2931
rtnl_group_changelink net/core/rtnetlink.c:3242 [inline]
__rtnl_newlink+0xc06/0x1750 net/core/rtnetlink.c:3396
rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3506
rtnetlink_rcv_msg+0x413/0xb80 net/core/rtnetlink.c:5571
netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2487
netlink_unicast_kernel net/netlink/af_netlink.c:1315 [inline]
netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1341
netlink_sendmsg+0x86d/0xda0 net/netlink/af_netlink.c:1912
sock_sendmsg_nosec net/socket.c:704 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:724
____sys_sendmsg+0x6e8/0x810 net/socket.c:2409
___sys_sendmsg+0xf3/0x170 net/socket.c:2463
__sys_sendmsg+0xe5/0x1b0 net/socket.c:2492
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f0d0abeaae9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0d08160188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f0d0acfdf60 RCX: 00007f0d0abeaae9
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000003
RBP: 00007f0d0ac44f6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd4768e4af R14: 00007f0d08160300 R15: 0000000000022000
----------------
Code disassembly (best guess):
0: 00 74 ef 49 add %dh,0x49(%rdi,%rbp,8)
4: 8d 04 2c lea (%rsp,%rbp,1),%eax
7: 48 85 d2 test %rdx,%rdx
a: 75 0b jne 0x17
c: 48 89 da mov %rbx,%rdx
f: 48 29 c2 sub %rax,%rdx
12: e9 55 ff ff ff jmpq 0xffffff6c
17: 49 39 d2 cmp %rdx,%r10
1a: 75 17 jne 0x33
1c: 49 0f be 02 movsbq (%r10),%rax
20: 41 83 e1 07 and $0x7,%r9d
24: 49 39 c1 cmp %rax,%r9
27: 7d 0a jge 0x33
29: 5b pop %rbx
* 2a: b8 01 00 00 00 mov $0x1,%eax <-- trapping instruction
2f: 5d pop %rbp
30: 41 5c pop %r12
32: c3 retq
33: 44 89 c2 mov %r8d,%edx
36: e8 53 ef ff ff callq 0xffffef8e
3b: 5b pop %rbx
3c: 83 f0 01 xor $0x1,%eax
3f: 5d pop %rbp