INFO: task khugepaged:32 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:khugepaged state:D stack:20888 pid: 32 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xb72/0x1460 kernel/sched/core.c:6253
schedule+0x12b/0x1f0 kernel/sched/core.c:6326
schedule_timeout+0xac/0x300 kernel/time/timer.c:1857
do_wait_for_common+0x2da/0x480 kernel/sched/completion.c:85
__wait_for_common kernel/sched/completion.c:106 [inline]
wait_for_common kernel/sched/completion.c:117 [inline]
wait_for_completion+0x46/0x60 kernel/sched/completion.c:138
__flush_work+0x135/0x1b0 kernel/workqueue.c:3084
__drain_all_pages+0x583/0x690 mm/page_alloc.c:3232
drain_all_pages mm/page_alloc.c:3246 [inline]
__alloc_pages_direct_reclaim mm/page_alloc.c:4623 [inline]
__alloc_pages_slowpath+0x128e/0x2530 mm/page_alloc.c:5007
__alloc_pages+0x3d0/0x580 mm/page_alloc.c:5382
__alloc_pages_node include/linux/gfp.h:570 [inline]
khugepaged_alloc_page+0xd2/0x180 mm/khugepaged.c:884
collapse_huge_page+0x1cc/0x30b0 mm/khugepaged.c:1087
khugepaged_scan_pmd mm/khugepaged.c:1370 [inline]
khugepaged_scan_mm_slot+0x17e9/0x2ae0 mm/khugepaged.c:2157
khugepaged_do_scan+0x2af/0x640 mm/khugepaged.c:2238
khugepaged+0xf5/0x890 mm/khugepaged.c:2283
kthread+0x468/0x490 kernel/kthread.c:327
ret_from_fork+0x1f/0x30
INFO: task kworker/0:0:17935 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:kworker/0:0 state:D stack:24952 pid:17935 ppid: 2 flags:0x00004000
Workqueue: ipv6_addrconf addrconf_dad_work
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xb72/0x1460 kernel/sched/core.c:6253
schedule+0x12b/0x1f0 kernel/sched/core.c:6326
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6385
__mutex_lock_common+0xd1f/0x2590 kernel/locking/mutex.c:680
__mutex_lock kernel/locking/mutex.c:740 [inline]
mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:792
addrconf_dad_work+0xdb/0x1d10 net/ipv6/addrconf.c:4052
process_one_work+0x853/0x1140 kernel/workqueue.c:2298
worker_thread+0xac1/0x1320 kernel/workqueue.c:2445
kthread+0x468/0x490 kernel/kthread.c:327
ret_from_fork+0x1f/0x30
INFO: task syz-executor.3:17073 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.3 state:D stack:26864 pid:17073 ppid: 6518 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xb72/0x1460 kernel/sched/core.c:6253
schedule+0x12b/0x1f0 kernel/sched/core.c:6326
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6385
__mutex_lock_common+0xd1f/0x2590 kernel/locking/mutex.c:680
__mutex_lock kernel/locking/mutex.c:740 [inline]
mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:792
ip6mr_sk_done+0x9e/0x2c0 net/ipv6/ip6mr.c:1582
rawv6_close+0x5f/0x80 net/ipv6/raw.c:1198
inet_release+0x16e/0x1f0 net/ipv4/af_inet.c:427
__sock_release net/socket.c:649 [inline]
sock_close+0xd8/0x260 net/socket.c:1314
__fput+0x3fc/0x870 fs/file_table.c:280
task_work_run+0x146/0x1c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop kernel/entry/common.c:175 [inline]
exit_to_user_mode_prepare+0x209/0x220 kernel/entry/common.c:207
__syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
syscall_exit_to_user_mode+0x2e/0x70 kernel/entry/common.c:300
do_syscall_64+0x53/0xd0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f6786abc72b
RSP: 002b:00007ffe493289b0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007f6786abc72b
RDX: 0000000000000000 RSI: ffffffff81acbf92 RDI: 0000000000000004
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b3312097c
R10: 0000000000001c0e R11: 0000000000000293 R12: 00007f6786c1db60
R13: 00007f6786c1db60 R14: 00007f6786c1cf60 R15: 00000000002ba71d
INFO: task syz-executor.0:17074 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.0 state:D stack:26864 pid:17074 ppid: 15830 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xb72/0x1460 kernel/sched/core.c:6253
schedule+0x12b/0x1f0 kernel/sched/core.c:6326
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6385
__mutex_lock_common+0xd1f/0x2590 kernel/locking/mutex.c:680
__mutex_lock kernel/locking/mutex.c:740 [inline]
mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:792
ip6mr_sk_done+0x9e/0x2c0 net/ipv6/ip6mr.c:1582
rawv6_close+0x5f/0x80 net/ipv6/raw.c:1198
inet_release+0x16e/0x1f0 net/ipv4/af_inet.c:427
__sock_release net/socket.c:649 [inline]
sock_close+0xd8/0x260 net/socket.c:1314
__fput+0x3fc/0x870 fs/file_table.c:280
task_work_run+0x146/0x1c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop kernel/entry/common.c:175 [inline]
exit_to_user_mode_prepare+0x209/0x220 kernel/entry/common.c:207
__syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
syscall_exit_to_user_mode+0x2e/0x70 kernel/entry/common.c:300
do_syscall_64+0x53/0xd0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fbb8536772b
RSP: 002b:00007ffd4d4d7120 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000005 RCX: 00007fbb8536772b
RDX: 0000000000000000 RSI: ffffffff8462ebd6 RDI: 0000000000000004
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b3112096c
R10: 00000000000002c2 R11: 0000000000000293 R12: 00007fbb854c8b60
R13: 00007fbb854c8b60 R14: 00007fbb854c7f60 R15: 00000000002ba748
INFO: task syz-executor.1:17079 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.1 state:D stack:22288 pid:17079 ppid: 8123 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xb72/0x1460 kernel/sched/core.c:6253
schedule+0x12b/0x1f0 kernel/sched/core.c:6326
synchronize_rcu_expedited+0x5c1/0x740 kernel/rcu/tree_exp.h:852
synchronize_net net/core/dev.c:10982 [inline]
netif_set_real_num_tx_queues+0x4b6/0x890 net/core/dev.c:2935
veth_init_queues drivers/net/veth.c:1617 [inline]
veth_newlink+0x9f4/0xf80 drivers/net/veth.c:1738
__rtnl_newlink net/core/rtnetlink.c:3458 [inline]
rtnl_newlink+0x14b3/0x1d10 net/core/rtnetlink.c:3506
rtnetlink_rcv_msg+0x934/0xe60 net/core/rtnetlink.c:5571
netlink_rcv_skb+0x200/0x470 net/netlink/af_netlink.c:2491
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x814/0x9f0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0xa20/0xe40 net/netlink/af_netlink.c:1916
sock_sendmsg_nosec net/socket.c:704 [inline]
sock_sendmsg net/socket.c:724 [inline]
____sys_sendmsg+0x5b9/0x910 net/socket.c:2409
___sys_sendmsg net/socket.c:2463 [inline]
__sys_sendmsg+0x280/0x370 net/socket.c:2492
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f7ebb1a2ae9
RSP: 002b:00007f7eb8718188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f7ebb2b5f60 RCX: 00007f7ebb1a2ae9
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000004
RBP: 00007f7ebb1fcf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffe76bdbcf R14: 00007f7eb8718300 R15: 0000000000022000
INFO: task syz-executor.1:17083 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.1 state:D stack:26832 pid:17083 ppid: 8123 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xb72/0x1460 kernel/sched/core.c:6253
schedule+0x12b/0x1f0 kernel/sched/core.c:6326
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6385
__mutex_lock_common+0xd1f/0x2590 kernel/locking/mutex.c:680
__mutex_lock kernel/locking/mutex.c:740 [inline]
mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:792
rtnl_lock net/core/rtnetlink.c:72 [inline]
rtnetlink_rcv_msg+0x8ed/0xe60 net/core/rtnetlink.c:5568
netlink_rcv_skb+0x200/0x470 net/netlink/af_netlink.c:2491
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x814/0x9f0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0xa20/0xe40 net/netlink/af_netlink.c:1916
sock_sendmsg_nosec net/socket.c:704 [inline]
sock_sendmsg net/socket.c:724 [inline]
____sys_sendmsg+0x5b9/0x910 net/socket.c:2409
___sys_sendmsg net/socket.c:2463 [inline]
__sys_sendmsg+0x280/0x370 net/socket.c:2492
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f7ebb1a2ae9
RSP: 002b:00007f7eb86f7188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f7ebb2b6020 RCX: 00007f7ebb1a2ae9
RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000003
RBP: 00007f7ebb1fcf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffe76bdbcf R14: 00007f7eb86f7300 R15: 0000000000022000
INFO: task syz-executor.1:17102 blocked for more than 147 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:26864 pid:17102 ppid: 8123 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xb72/0x1460 kernel/sched/core.c:6253
schedule+0x12b/0x1f0 kernel/sched/core.c:6326
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6385
__mutex_lock_common+0xd1f/0x2590 kernel/locking/mutex.c:680
__mutex_lock kernel/locking/mutex.c:740 [inline]
mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:792
rtnl_lock net/core/rtnetlink.c:72 [inline]
rtnetlink_rcv_msg+0x8ed/0xe60 net/core/rtnetlink.c:5568
netlink_rcv_skb+0x200/0x470 net/netlink/af_netlink.c:2491
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x814/0x9f0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0xa20/0xe40 net/netlink/af_netlink.c:1916
sock_sendmsg_nosec net/socket.c:704 [inline]
sock_sendmsg net/socket.c:724 [inline]
____sys_sendmsg+0x5b9/0x910 net/socket.c:2409
___sys_sendmsg net/socket.c:2463 [inline]
__sys_sendmsg+0x280/0x370 net/socket.c:2492
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f7ebb1a2ae9
RSP: 002b:00007f7eb86d6188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f7ebb2b60e0 RCX: 00007f7ebb1a2ae9
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000004
RBP: 00007f7ebb1fcf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffe76bdbcf R14: 00007f7eb86d6300 R15: 0000000000022000
INFO: task syz-executor.1:17103 blocked for more than 148 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:26864 pid:17103 ppid: 8123 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xb72/0x1460 kernel/sched/core.c:6253
schedule+0x12b/0x1f0 kernel/sched/core.c:6326
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6385
__mutex_lock_common+0xd1f/0x2590 kernel/locking/mutex.c:680
__mutex_lock kernel/locking/mutex.c:740 [inline]
mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:792
rtnl_lock net/core/rtnetlink.c:72 [inline]
rtnetlink_rcv_msg+0x8ed/0xe60 net/core/rtnetlink.c:5568
netlink_rcv_skb+0x200/0x470 net/netlink/af_netlink.c:2491
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x814/0x9f0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0xa20/0xe40 net/netlink/af_netlink.c:1916
sock_sendmsg_nosec net/socket.c:704 [inline]
sock_sendmsg net/socket.c:724 [inline]
____sys_sendmsg+0x5b9/0x910 net/socket.c:2409
___sys_sendmsg net/socket.c:2463 [inline]
__sys_sendmsg+0x280/0x370 net/socket.c:2492
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f7ebb1a2ae9
RSP: 002b:00007f7eb86b5188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f7ebb2b61a0 RCX: 00007f7ebb1a2ae9
RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000003
RBP: 00007f7ebb1fcf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffe76bdbcf R14: 00007f7eb86b5300 R15: 0000000000022000
INFO: task syz-executor.2:17105 blocked for more than 148 seconds.
Not tainted 5.16.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:26384 pid:17105 ppid: 10487 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xb72/0x1460 kernel/sched/core.c:6253
schedule+0x12b/0x1f0 kernel/sched/core.c:6326
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6385
__mutex_lock_common+0xd1f/0x2590 kernel/locking/mutex.c:680
__mutex_lock kernel/locking/mutex.c:740 [inline]
mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:792
ip6mr_sk_done+0x9e/0x2c0 net/ipv6/ip6mr.c:1582
rawv6_close+0x5f/0x80 net/ipv6/raw.c:1198
inet_release+0x16e/0x1f0 net/ipv4/af_inet.c:427
__sock_release net/socket.c:649 [inline]
sock_close+0xd8/0x260 net/socket.c:1314
__fput+0x3fc/0x870 fs/file_table.c:280
task_work_run+0x146/0x1c0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop kernel/entry/common.c:175 [inline]
exit_to_user_mode_prepare+0x209/0x220 kernel/entry/common.c:207
__syscall_exit_to_user_mode_work kernel/entry/common.c:289 [inline]
syscall_exit_to_user_mode+0x2e/0x70 kernel/entry/common.c:300
do_syscall_64+0x53/0xd0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fd8a288372b
RSP: 002b:00007ffde8426990 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000006 RCX: 00007fd8a288372b
RDX: 0000001b31321084 RSI: ffffffff8188262f RDI: 0000000000000005
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000001b31320b18
R10: 0000000000000002 R11: 0000000000000293 R12: 00007fd8a29e4b60
R13: 00007fd8a29e4b60 R14: 00007fd8a29e3f60 R15: 00000000002bad59
INFO: task syz-executor.2:17108 blocked for more than 149 seconds.
Not tainted 5.16.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:26584 pid:17108 ppid: 10487 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:4972 [inline]
__schedule+0xb72/0x1460 kernel/sched/core.c:6253
schedule+0x12b/0x1f0 kernel/sched/core.c:6326
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6385
__mutex_lock_common+0xd1f/0x2590 kernel/locking/mutex.c:680
__mutex_lock kernel/locking/mutex.c:740 [inline]
mutex_lock_nested+0x1a/0x20 kernel/locking/mutex.c:792
rtnl_lock net/core/rtnetlink.c:72 [inline]
rtnetlink_rcv_msg+0x8ed/0xe60 net/core/rtnetlink.c:5568
netlink_rcv_skb+0x200/0x470 net/netlink/af_netlink.c:2491
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x814/0x9f0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0xa20/0xe40 net/netlink/af_netlink.c:1916
sock_sendmsg_nosec net/socket.c:704 [inline]
sock_sendmsg net/socket.c:724 [inline]
____sys_sendmsg+0x5b9/0x910 net/socket.c:2409
___sys_sendmsg net/socket.c:2463 [inline]
__sys_sendmsg+0x280/0x370 net/socket.c:2492
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fd8a28d0ae9
RSP: 002b:00007fd89fe46188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fd8a29e3f60 RCX: 00007fd8a28d0ae9
RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000004
RBP: 00007fd8a292af6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffde842692f R14: 00007fd89fe46300 R15: 0000000000022000
Showing all locks held in the system:
2 locks held by ksoftirqd/1/19:
3 locks held by kworker/1:0/20:
1 lock held by khungtaskd/26:
#0: ffffffff8cd1da80 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
1 lock held by khugepaged/32:
1 lock held by in:imklog/6193:
#0: ffff888079e280f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0x24e/0x2f0 fs/file.c:990
4 locks held by kworker/u4:13/8028:
#0: ffff8880119b7938 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x7ca/0x1140
#1: ffffc9000a5efd20 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x808/0x1140 kernel/workqueue.c:2273
#2: ffffffff8dd75ab0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xf0/0xc50 net/core/net_namespace.c:555
#3: ffffffff8dd81848 (rtnl_mutex){+.+.}-{3:3}, at: wg_netns_pre_exit+0x1b/0x170 drivers/net/wireguard/device.c:402
3 locks held by kworker/0:0/17935:
#0: ffff88814b0c6538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x7ca/0x1140
#1: ffffc90004c0fd20 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x808/0x1140 kernel/workqueue.c:2273
#2: ffffffff8dd81848 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xdb/0x1d10 net/ipv6/addrconf.c:4052
2 locks held by syz-executor.2/5045:
#0: ffff888077736e10 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:783 [inline]
#0: ffff888077736e10 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}, at: __sock_release net/socket.c:648 [inline]
#0: ffff888077736e10 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}, at: sock_close+0x94/0x260 net/socket.c:1314
#1: ffffffff8dd81848 (rtnl_mutex){+.+.}-{3:3}, at: ip6mr_sk_done+0x9e/0x2c0 net/ipv6/ip6mr.c:1582
2 locks held by syz-executor.2/5067:
#0: ffff888085768810 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:783 [inline]
#0: ffff888085768810 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}, at: __sock_release net/socket.c:648 [inline]
#0: ffff888085768810 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}, at: sock_close+0x94/0x260 net/socket.c:1314
#1: ffffffff8dd81848 (rtnl_mutex){+.+.}-{3:3}, at: ip6mr_sk_done+0x9e/0x2c0 net/ipv6/ip6mr.c:1582
2 locks held by syz-executor.3/11676:
#0: ffff888147d63810 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:783 [inline]
#0: ffff888147d63810 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}, at: __sock_release net/socket.c:648 [inline]
#0: ffff888147d63810 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}, at: sock_close+0x94/0x260 net/socket.c:1314
#1: ffffffff8dd81848 (rtnl_mutex){+.+.}-{3:3}, at: ip6mr_sk_done+0x9e/0x2c0 net/ipv6/ip6mr.c:1582
2 locks held by syz-executor.3/11718:
#0: ffff888147d67a10 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:783 [inline]
#0: ffff888147d67a10 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}, at: __sock_release net/socket.c:648 [inline]
#0: ffff888147d67a10 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}, at: sock_close+0x94/0x260 net/socket.c:1314
#1: ffffffff8dd81848 (rtnl_mutex){+.+.}-{3:3}, at: ip6mr_sk_done+0x9e/0x2c0 net/ipv6/ip6mr.c:1582
3 locks held by kworker/1:2/12544:
#0: ffff888011864d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x7ca/0x1140
#1: ffffc90004a67d20 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x808/0x1140 kernel/workqueue.c:2273
#2: ffffffff8dd81848 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xa/0x50 net/core/link_watch.c:251
3 locks held by kworker/1:1/4176:
#0: ffff88814b0c6538 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x7ca/0x1140
#1: ffffc900152f7d20 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x808/0x1140 kernel/workqueue.c:2273
#2: ffffffff8dd81848 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xdb/0x1d10 net/ipv6/addrconf.c:4052
2 locks held by syz-executor.3/17073:
#0: ffff8880854bca10 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:783 [inline]
#0: ffff8880854bca10 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}, at: __sock_release net/socket.c:648 [inline]
#0: ffff8880854bca10 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}, at: sock_close+0x94/0x260 net/socket.c:1314
#1: ffffffff8dd81848 (rtnl_mutex){+.+.}-{3:3}, at: ip6mr_sk_done+0x9e/0x2c0 net/ipv6/ip6mr.c:1582
2 locks held by syz-executor.0/17074:
#0: ffff8880854be810 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:783 [inline]
#0: ffff8880854be810 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}, at: __sock_release net/socket.c:648 [inline]
#0: ffff8880854be810 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}, at: sock_close+0x94/0x260 net/socket.c:1314
#1: ffffffff8dd81848 (rtnl_mutex){+.+.}-{3:3}, at: ip6mr_sk_done+0x9e/0x2c0 net/ipv6/ip6mr.c:1582
2 locks held by syz-executor.1/17079:
#0: ffffffff8dd81848 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8dd81848 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x8ed/0xe60 net/core/rtnetlink.c:5568
#1: ffffffff8cd222e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline]
#1: ffffffff8cd222e8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x277/0x740 kernel/rcu/tree_exp.h:836
1 lock held by syz-executor.1/17083:
#0: ffffffff8dd81848 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8dd81848 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x8ed/0xe60 net/core/rtnetlink.c:5568
1 lock held by syz-executor.1/17102:
#0: ffffffff8dd81848 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8dd81848 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x8ed/0xe60 net/core/rtnetlink.c:5568
1 lock held by syz-executor.1/17103:
#0: ffffffff8dd81848 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8dd81848 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x8ed/0xe60 net/core/rtnetlink.c:5568
2 locks held by syz-executor.2/17105:
#0: ffff888147d64a10 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:783 [inline]
#0: ffff888147d64a10 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}, at: __sock_release net/socket.c:648 [inline]
#0: ffff888147d64a10 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}, at: sock_close+0x94/0x260 net/socket.c:1314
#1: ffffffff8dd81848 (rtnl_mutex){+.+.}-{3:3}, at: ip6mr_sk_done+0x9e/0x2c0 net/ipv6/ip6mr.c:1582
1 lock held by syz-executor.2/17108:
#0: ffffffff8dd81848 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8dd81848 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x8ed/0xe60 net/core/rtnetlink.c:5568
2 locks held by syz-executor.5/17111:
#0: ffff8880854bc410 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:783 [inline]
#0: ffff8880854bc410 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}, at: __sock_release net/socket.c:648 [inline]
#0: ffff8880854bc410 (&sb->s_type->i_mutex_key#13){+.+.}-{3:3}, at: sock_close+0x94/0x260 net/socket.c:1314
#1: ffffffff8dd81848 (rtnl_mutex){+.+.}-{3:3}, at: ip6mr_sk_done+0x9e/0x2c0 net/ipv6/ip6mr.c:1582
1 lock held by syz-executor.5/17115:
#0: ffffffff8dd81848 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8dd81848 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x8ed/0xe60 net/core/rtnetlink.c:5568
2 locks held by kworker/u4:0/17136:
#0: ffff8880b9a395d8 (&rq->__lock){-.-.}-{2:2}, at: raw_spin_rq_lock_nested+0x25/0x110 kernel/sched/core.c:478
#1: ffff8880b9a27888 (&per_cpu_ptr(group->pcpu, cpu)->seq){-.-.}-{0:0}, at: psi_task_switch+0x4c1/0x780 kernel/sched/psi.c:880
=============================================
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+0x1dc/0x2d8 lib/dump_stack.c:106
nmi_cpu_backtrace+0x45f/0x490 lib/nmi_backtrace.c:105
nmi_trigger_cpumask_backtrace+0x16a/0x280 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+0xc82/0xcd0 kernel/hung_task.c:295
kthread+0x468/0x490 kernel/kthread.c:327
ret_from_fork+0x1f/0x30
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 20 Comm: kworker/1:0 Not tainted 5.16.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events ipvlan_process_multicast
RIP: 0010:__trace_hardirqs_on_caller kernel/locking/lockdep.c:4231 [inline]
RIP: 0010:lockdep_hardirqs_on_prepare+0x30d/0x780 kernel/locking/lockdep.c:4292
Code: 4c 89 e6 e8 d5 d2 f9 02 48 ba 00 00 00 00 00 fc ff df e9 40 ff ff ff 49 8d 9e 40 0a 00 00 48 89 d8 48 c1 e8 03 8a 04 10 84 c0 <0f> 85 31 03 00 00 83 3b 00 0f 84 ea 00 00 00 41 8a 04 17 84 c0 0f
RSP: 0018:ffffc90000da7780 EFLAGS: 00000046
RAX: 1ffff110024a3100 RBX: ffff888012518a40 RCX: ffffffff81665dc1
RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffffffff901a7050
RBP: ffffc90000da7840 R08: dffffc0000000000 R09: fffffbfff2034e0b
R10: fffffbfff2034e0b R11: 0000000000000000 R12: 0000000000000003
R13: ffff888012518a58 R14: ffff888012518000 R15: 1ffff110024a314b
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8881b2c000 CR3: 000000000ca8e000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
trace_hardirqs_on+0x6f/0x80 kernel/trace/trace_preemptirq.c:49
enqueue_to_backlog+0x281/0x1010 net/core/dev.c:4670
netif_rx_internal+0xef/0x400 net/core/dev.c:4927
ipvlan_process_multicast+0x921/0xfa0 drivers/net/ipvlan/ipvlan_core.c:274
process_one_work+0x853/0x1140 kernel/workqueue.c:2298
worker_thread+0xac1/0x1320 kernel/workqueue.c:2445
kthread+0x468/0x490 kernel/kthread.c:327
ret_from_fork+0x1f/0x30
----------------
Code disassembly (best guess):
0: 4c 89 e6 mov %r12,%rsi
3: e8 d5 d2 f9 02 callq 0x2f9d2dd
8: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx
f: fc ff df
12: e9 40 ff ff ff jmpq 0xffffff57
17: 49 8d 9e 40 0a 00 00 lea 0xa40(%r14),%rbx
1e: 48 89 d8 mov %rbx,%rax
21: 48 c1 e8 03 shr $0x3,%rax
25: 8a 04 10 mov (%rax,%rdx,1),%al
28: 84 c0 test %al,%al
* 2a: 0f 85 31 03 00 00 jne 0x361 <-- trapping instruction
30: 83 3b 00 cmpl $0x0,(%rbx)
33: 0f 84 ea 00 00 00 je 0x123
39: 41 8a 04 17 mov (%r15,%rdx,1),%al
3d: 84 c0 test %al,%al
3f: 0f .byte 0xf