INFO: task kworker/u4:7:1100 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u4:7 state:D stack:22128 pid:1100 ppid:2 flags:0x00004000 Workqueue: events_unbound linkwatch_event Call Trace: context_switch kernel/sched/core.c:5393 [inline] __schedule+0x156f/0x4720 kernel/sched/core.c:6722 schedule+0xbd/0x170 kernel/sched/core.c:6796 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6855 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x689/0xce0 kernel/locking/mutex.c:747 linkwatch_event+0xe/0x60 net/core/link_watch.c:286 process_one_work kernel/workqueue.c:2657 [inline] process_scheduled_works+0xa60/0x1600 kernel/workqueue.c:2734 worker_thread+0xa5e/0xfe0 kernel/workqueue.c:2815 kthread+0x2fa/0x390 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293 INFO: task kworker/1:4:5864 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/1:4 state:D stack:24280 pid:5864 ppid:2 flags:0x00004000 Workqueue: events switchdev_deferred_process_work Call Trace: context_switch kernel/sched/core.c:5393 [inline] __schedule+0x156f/0x4720 kernel/sched/core.c:6722 schedule+0xbd/0x170 kernel/sched/core.c:6796 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6855 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x689/0xce0 kernel/locking/mutex.c:747 switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:104 process_one_work kernel/workqueue.c:2657 [inline] process_scheduled_works+0xa60/0x1600 kernel/workqueue.c:2734 worker_thread+0xa5e/0xfe0 kernel/workqueue.c:2815 kthread+0x2fa/0x390 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293 INFO: task kworker/u4:14:12510 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u4:14 state:D stack:22376 pid:12510 ppid:2 flags:0x00004000 Workqueue: ipv6_addrconf addrconf_dad_work Call Trace: context_switch kernel/sched/core.c:5393 [inline] __schedule+0x156f/0x4720 kernel/sched/core.c:6722 schedule+0xbd/0x170 kernel/sched/core.c:6796 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6855 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x689/0xce0 kernel/locking/mutex.c:747 addrconf_dad_work+0xce/0x1550 net/ipv6/addrconf.c:4195 process_one_work kernel/workqueue.c:2657 [inline] process_scheduled_works+0xa60/0x1600 kernel/workqueue.c:2734 worker_thread+0xa5e/0xfe0 kernel/workqueue.c:2815 kthread+0x2fa/0x390 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293 INFO: task syz-executor:12932 blocked for more than 144 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor state:D stack:21000 pid:12932 ppid:1 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5393 [inline] __schedule+0x156f/0x4720 kernel/sched/core.c:6722 schedule+0xbd/0x170 kernel/sched/core.c:6796 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6855 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x689/0xce0 kernel/locking/mutex.c:747 rtnl_lock net/core/rtnetlink.c:78 [inline] rtnetlink_rcv_msg+0x7ed/0xf90 net/core/rtnetlink.c:6486 netlink_rcv_skb+0x235/0x4c0 net/netlink/af_netlink.c:2554 netlink_unicast_kernel net/netlink/af_netlink.c:1320 [inline] netlink_unicast+0x856/0x9e0 net/netlink/af_netlink.c:1346 netlink_sendmsg+0x8d0/0xbf0 net/netlink/af_netlink.c:1903 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] __sys_sendto+0x4a9/0x6b0 net/socket.c:2201 __do_sys_sendto net/socket.c:2213 [inline] __se_sys_sendto net/socket.c:2209 [inline] __x64_sys_sendto+0xde/0xf0 net/socket.c:2209 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f6c2a96034e RSP: 002b:00007ffe1d70db78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 000055557d1c3500 RCX: 00007f6c2a96034e RDX: 0000000000000028 RSI: 00007f6c2b754670 RDI: 0000000000000003 RBP: 0000000000000001 R08: 00007ffe1d70dbf4 R09: 000000000000000c R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 R13: 0000000000000000 R14: 00007f6c2b754670 R15: 0000000000000000 INFO: task syz.1.2401:13092 blocked for more than 144 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.1.2401 state:D stack:24488 pid:13092 ppid:5788 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5393 [inline] __schedule+0x156f/0x4720 kernel/sched/core.c:6722 schedule+0xbd/0x170 kernel/sched/core.c:6796 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6855 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x689/0xce0 kernel/locking/mutex.c:747 tun_detach drivers/net/tun.c:698 [inline] tun_chr_close+0x41/0x1c0 drivers/net/tun.c:3525 __fput+0x221/0x940 fs/file_table.c:418 task_work_run+0x1d4/0x260 kernel/task_work.c:245 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:180 exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:213 __syscall_exit_to_user_mode_work kernel/entry/common.c:294 [inline] syscall_exit_to_user_mode+0x1a/0x50 kernel/entry/common.c:305 do_syscall_64+0x61/0xb0 arch/x86/entry/common.c:82 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f26ff79fb19 RSP: 002b:00007f2700713028 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffea RBX: 00007f26ffa25fa0 RCX: 00007f26ff79fb19 RDX: 0000000000004001 RSI: 0000200000000300 RDI: ffffffffffffff9c RBP: 00007f26ff837b70 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f26ffa26038 R14: 00007f26ffa25fa0 R15: 00007fffc5f310e8 INFO: task syz.1.2401:13094 blocked for more than 144 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.1.2401 state:D stack:27208 pid:13094 ppid:5788 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5393 [inline] __schedule+0x156f/0x4720 kernel/sched/core.c:6722 schedule+0xbd/0x170 kernel/sched/core.c:6796 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6855 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x689/0xce0 kernel/locking/mutex.c:747 dev_ioctl+0x83c/0x1140 net/core/dev_ioctl.c:794 sock_ioctl+0x74c/0x7e0 net/socket.c:1266 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:871 [inline] __se_sys_ioctl+0xfd/0x170 fs/ioctl.c:857 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f26ff79fb19 RSP: 002b:00007f27006d1028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f26ffa26180 RCX: 00007f26ff79fb19 RDX: 0000200000000dc0 RSI: 00000000000089f1 RDI: 000000000000000c RBP: 00007f26ff837b70 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f26ffa26218 R14: 00007f26ffa26180 R15: 00007fffc5f310e8 INFO: task syz.0.2403:13100 blocked for more than 144 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.0.2403 state:D stack:23560 pid:13100 ppid:5792 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5393 [inline] __schedule+0x156f/0x4720 kernel/sched/core.c:6722 schedule+0xbd/0x170 kernel/sched/core.c:6796 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6855 __mutex_lock_common kernel/locking/mutex.c:679 [inline] __mutex_lock+0x689/0xce0 kernel/locking/mutex.c:747 br_ioctl_stub+0x1a9/0xd50 net/bridge/br_ioctl.c:418 br_ioctl_call net/socket.c:1193 [inline] sock_ioctl+0x4d7/0x7e0 net/socket.c:1295 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:871 [inline] __se_sys_ioctl+0xfd/0x170 fs/ioctl.c:857 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f906039fb19 RSP: 002b:00007f906125a028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f9060625fa0 RCX: 00007f906039fb19 RDX: 0000200000000340 RSI: 00000000000089a0 RDI: 0000000000000004 RBP: 00007f9060437b70 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f9060626038 R14: 00007f9060625fa0 R15: 00007ffdba0911a8 Showing all locks held in the system: 1 lock held by khungtaskd/29: #0: ffffffff8e1322e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:334 [inline] #0: ffffffff8e1322e0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:786 [inline] #0: ffffffff8e1322e0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x290 kernel/locking/lockdep.c:6669 3 locks held by kworker/u4:7/1100: #0: ffff888018c71938 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2632 [inline] #0: ffff888018c71938 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_scheduled_works+0x975/0x1600 kernel/workqueue.c:2734 #1: ffffc90004627d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2632 [inline] #1: ffffc90004627d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_scheduled_works+0x975/0x1600 kernel/workqueue.c:2734 #2: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xe/0x60 net/core/link_watch.c:286 2 locks held by getty/5546: #0: ffff88802f84c0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243 #1: ffffc9000327e2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x43a/0x1400 drivers/tty/n_tty.c:2217 3 locks held by kworker/1:4/5864: #0: ffff888018c70d38 ((wq_completion)events#2){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2632 [inline] #0: ffff888018c70d38 ((wq_completion)events#2){+.+.}-{0:0}, at: process_scheduled_works+0x975/0x1600 kernel/workqueue.c:2734 #1: ffffc900048f7d00 (deferred_process_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2632 [inline] #1: ffffc900048f7d00 (deferred_process_work){+.+.}-{0:0}, at: process_scheduled_works+0x975/0x1600 kernel/workqueue.c:2734 #2: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: switchdev_deferred_process_work+0xe/0x20 net/switchdev/switchdev.c:104 4 locks held by kworker/u4:9/12505: #0: ffff888140049138 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2632 [inline] #0: ffff888140049138 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x975/0x1600 kernel/workqueue.c:2734 #1: ffffc9000ca4fd00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2632 [inline] #1: ffffc9000ca4fd00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x975/0x1600 kernel/workqueue.c:2734 #2: ffffffff8f3db1d0 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x140/0xb00 net/core/net_namespace.c:610 #3: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0xdf/0x670 net/core/dev.c:11858 3 locks held by kworker/u4:14/12510: #0: ffff88802dfd7d38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2632 [inline] #0: ffff88802dfd7d38 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x975/0x1600 kernel/workqueue.c:2734 #1: ffffc9000c65fd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:2632 [inline] #1: ffffc9000c65fd00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x975/0x1600 kernel/workqueue.c:2734 #2: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xce/0x1550 net/ipv6/addrconf.c:4195 1 lock held by syz-executor/12932: #0: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7ed/0xf90 net/core/rtnetlink.c:6486 1 lock held by syz.1.2401/13092: #0: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:698 [inline] #0: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x41/0x1c0 drivers/net/tun.c:3525 1 lock held by syz.1.2401/13094: #0: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x83c/0x1140 net/core/dev_ioctl.c:794 2 locks held by syz.0.2403/13100: #0: ffffffff8f3ccf28 (br_ioctl_mutex){+.+.}-{3:3}, at: br_ioctl_call net/socket.c:1191 [inline] #0: ffffffff8f3ccf28 (br_ioctl_mutex){+.+.}-{3:3}, at: sock_ioctl+0x4b4/0x7e0 net/socket.c:1295 #1: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: br_ioctl_stub+0x1a9/0xd50 net/bridge/br_ioctl.c:418 1 lock held by syz-executor/13106: #0: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7ed/0xf90 net/core/rtnetlink.c:6486 1 lock held by syz-executor/13107: #0: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7ed/0xf90 net/core/rtnetlink.c:6486 1 lock held by syz.2.2408/13118: #0: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7ed/0xf90 net/core/rtnetlink.c:6486 1 lock held by syz-executor/13126: #0: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7ed/0xf90 net/core/rtnetlink.c:6486 1 lock held by syz-executor/13130: #0: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7ed/0xf90 net/core/rtnetlink.c:6486 1 lock held by syz-executor/13136: #0: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7ed/0xf90 net/core/rtnetlink.c:6486 1 lock held by syz-executor/13140: #0: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7ed/0xf90 net/core/rtnetlink.c:6486 1 lock held by syz-executor/13149: #0: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7ed/0xf90 net/core/rtnetlink.c:6486 1 lock held by syz-executor/13155: #0: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7ed/0xf90 net/core/rtnetlink.c:6486 1 lock held by syz-executor/13162: #0: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7ed/0xf90 net/core/rtnetlink.c:6486 1 lock held by syz-executor/13163: #0: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:78 [inline] #0: ffffffff8f3e83c8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x7ed/0xf90 net/core/rtnetlink.c:6486 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 29 Comm: khungtaskd Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/15/2026 Call Trace: dump_stack_lvl+0x18c/0x250 lib/dump_stack.c:106 nmi_cpu_backtrace+0x3a6/0x3e0 lib/nmi_backtrace.c:113 nmi_trigger_cpumask_backtrace+0x17a/0x2f0 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+0xf59/0xfa0 kernel/hung_task.c:379 kthread+0x2fa/0x390 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 12 Comm: kworker/u4:1 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/15/2026 Workqueue: bat_events batadv_nc_worker RIP: 0010:__lock_acquire+0x10d0/0x7eb0 kernel/locking/lockdep.c:-1 Code: ee 20 89 f0 c1 c0 04 41 29 f4 44 31 e0 44 01 fe 41 29 c7 89 c1 c1 c1 06 44 31 f9 01 f0 89 ca c1 c2 08 29 ce 31 f2 01 c1 29 d0 <41> 89 d6 41 c1 c6 10 41 31 c6 01 ca 44 89 f3 c1 c3 13 44 29 f1 31 RSP: 0018:ffffc900001177c0 EFLAGS: 00000006 RAX: 0000000012e869b1 RBX: 0000000000060730 RCX: 0000000047d03557 RDX: 00000000435dd9bc RSI: 00000000caac334d RDI: ffffffff92223500 RBP: ffffc90000117a08 R08: dffffc0000000000 R09: 1ffffffff24446a0 R10: dffffc0000000000 R11: fffffbfff24446a1 R12: 000000005368b56c R13: ffff88801d645a00 R14: ffff88801d6464d8 R15: 00000000758e7c4c FS: 0000000000000000(0000) GS:ffff8880b8d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055f016dbcf70 CR3: 000000000df32000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: lock_acquire+0x19e/0x420 kernel/locking/lockdep.c:5790 rcu_lock_acquire include/linux/rcupdate.h:334 [inline] rcu_read_lock include/linux/rcupdate.h:786 [inline] batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline] batadv_nc_worker+0xef/0x600 net/batman-adv/network-coding.c:719 process_one_work kernel/workqueue.c:2657 [inline] process_scheduled_works+0xa60/0x1600 kernel/workqueue.c:2734 worker_thread+0xa5e/0xfe0 kernel/workqueue.c:2815 kthread+0x2fa/0x390 kernel/kthread.c:388 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293