INFO: task kworker/0:17:22924 blocked for more than 143 seconds.
Not tainted 5.19.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:17 state:D stack:24064 pid:22924 ppid: 2 flags:0x00004000
Workqueue: events linkwatch_event
Call Trace:
context_switch kernel/sched/core.c:5116 [inline]
__schedule+0xa00/0x4b30 kernel/sched/core.c:6428
schedule+0xd2/0x1f0 kernel/sched/core.c:6500
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6559
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa70/0x1350 kernel/locking/mutex.c:747
linkwatch_event+0xb/0x60 net/core/link_watch.c:263
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
INFO: task kworker/0:0:1961 blocked for more than 143 seconds.
Not tainted 5.19.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:0 state:D stack:26688 pid: 1961 ppid: 2 flags:0x00004000
Workqueue: ipv6_addrconf addrconf_verify_work
Call Trace:
context_switch kernel/sched/core.c:5116 [inline]
__schedule+0xa00/0x4b30 kernel/sched/core.c:6428
schedule+0xd2/0x1f0 kernel/sched/core.c:6500
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6559
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa70/0x1350 kernel/locking/mutex.c:747
addrconf_verify_work+0xe/0x20 net/ipv6/addrconf.c:4620
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
INFO: task kworker/0:13:8338 blocked for more than 144 seconds.
Not tainted 5.19.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/0:13 state:D stack:23544 pid: 8338 ppid: 2 flags:0x00004000
Workqueue: events switchdev_deferred_process_work
Call Trace:
context_switch kernel/sched/core.c:5116 [inline]
__schedule+0xa00/0x4b30 kernel/sched/core.c:6428
schedule+0xd2/0x1f0 kernel/sched/core.c:6500
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6559
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa70/0x1350 kernel/locking/mutex.c:747
switchdev_deferred_process_work+0xa/0x20 net/switchdev/switchdev.c:75
process_one_work+0x996/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
INFO: task syz-executor.3:9886 blocked for more than 145 seconds.
Not tainted 5.19.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:29272 pid: 9886 ppid: 7092 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5116 [inline]
__schedule+0xa00/0x4b30 kernel/sched/core.c:6428
schedule+0xd2/0x1f0 kernel/sched/core.c:6500
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6559
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa70/0x1350 kernel/locking/mutex.c:747
arp_ioctl+0x22c/0x830 net/ipv4/arp.c:1214
inet_ioctl+0x27f/0x320 net/ipv4/af_inet.c:946
sock_do_ioctl+0xcc/0x230 net/socket.c:1169
sock_ioctl+0x2f1/0x640 net/socket.c:1286
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856
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+0x46/0xb0
RIP: 0033:0x7f343e689109
RSP: 002b:00007f343f72e168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f343e79bf60 RCX: 00007f343e689109
RDX: 0000000020000000 RSI: 0000000000008955 RDI: 0000000000000003
RBP: 00007f343e6e30ad R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd8a5fc81f R14: 00007f343f72e300 R15: 0000000000022000
INFO: task syz-executor.1:9884 blocked for more than 145 seconds.
Not tainted 5.19.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28096 pid: 9884 ppid: 7078 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5116 [inline]
__schedule+0xa00/0x4b30 kernel/sched/core.c:6428
schedule+0xd2/0x1f0 kernel/sched/core.c:6500
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6559
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa70/0x1350 kernel/locking/mutex.c:747
nl80211_pre_doit+0xae/0x600 net/wireless/nl80211.c:15374
genl_family_rcv_msg_doit+0x1ee/0x320 net/netlink/genetlink.c:726
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:2501
genl_rcv+0x24/0x40 net/netlink/genetlink.c:803
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x543/0x7f0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x917/0xe10 net/netlink/af_netlink.c:1921
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:734
____sys_sendmsg+0x6eb/0x810 net/socket.c:2492
___sys_sendmsg+0xf3/0x170 net/socket.c:2546
__sys_sendmsg net/socket.c:2575 [inline]
__do_sys_sendmsg net/socket.c:2584 [inline]
__se_sys_sendmsg net/socket.c:2582 [inline]
__x64_sys_sendmsg+0x132/0x220 net/socket.c:2582
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+0x46/0xb0
RIP: 0033:0x7fea98e89109
RSP: 002b:00007fea99fe0168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fea98f9bf60 RCX: 00007fea98e89109
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000003
RBP: 00007fea98ee30ad R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc08eb726f R14: 00007fea99fe0300 R15: 0000000000022000
INFO: task syz-executor.5:9888 blocked for more than 146 seconds.
Not tainted 5.19.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:24992 pid: 9888 ppid: 7081 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5116 [inline]
__schedule+0xa00/0x4b30 kernel/sched/core.c:6428
schedule+0xd2/0x1f0 kernel/sched/core.c:6500
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6559
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa70/0x1350 kernel/locking/mutex.c:747
tty_lock+0xbd/0x120 drivers/tty/tty_mutex.c:20
__tty_hangup.part.0+0xba/0x830 drivers/tty/tty_io.c:597
__tty_hangup drivers/tty/tty_io.c:592 [inline]
tty_vhangup+0x1d/0x30 drivers/tty/tty_io.c:707
pty_close+0x39f/0x4f0 drivers/tty/pty.c:79
tty_release+0x45e/0x1200 drivers/tty/tty_io.c:1758
__fput+0x277/0x9d0 fs/file_table.c:317
task_work_run+0xdd/0x1a0 kernel/task_work.c:177
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop kernel/entry/common.c:169 [inline]
exit_to_user_mode_prepare+0x23c/0x250 kernel/entry/common.c:201
__syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:294
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7f7123e3bd4b
RSP: 002b:00007ffc53397bf0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007f7123e3bd4b
RDX: 0000001b2e320000 RSI: 00007f7123a03630 RDI: 0000000000000003
RBP: 00007f7123f9d960 R08: 0000000000000000 R09: 00000000dad9fb48
R10: 00007ffc533a3090 R11: 0000000000000293 R12: 000000000030ce3c
R13: 00007ffc53397cf0 R14: 00007ffc53397d10 R15: 0000000000000032
INFO: task syz-executor.5:9890 blocked for more than 146 seconds.
Not tainted 5.19.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:27960 pid: 9890 ppid: 7081 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5116 [inline]
__schedule+0xa00/0x4b30 kernel/sched/core.c:6428
schedule+0xd2/0x1f0 kernel/sched/core.c:6500
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6559
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa70/0x1350 kernel/locking/mutex.c:747
slcan_open+0xe8/0xcc0 drivers/net/can/slcan.c:584
tty_ldisc_open+0x9b/0x110 drivers/tty/tty_ldisc.c:433
tty_set_ldisc+0x2f1/0x680 drivers/tty/tty_ldisc.c:558
tiocsetd drivers/tty/tty_io.c:2433 [inline]
tty_ioctl+0xae0/0x15e0 drivers/tty/tty_io.c:2714
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856
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+0x46/0xb0
RIP: 0033:0x7f7123e89109
RSP: 002b:00007f7125081168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f7123f9bf60 RCX: 00007f7123e89109
RDX: 0000000020000180 RSI: 0000000000005423 RDI: 0000000000000005
RBP: 00007f7123ee30ad R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc53397b8f R14: 00007f7125081300 R15: 0000000000022000
INFO: task syz-executor.5:9894 blocked for more than 146 seconds.
Not tainted 5.19.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:29840 pid: 9894 ppid: 7081 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5116 [inline]
__schedule+0xa00/0x4b30 kernel/sched/core.c:6428
schedule+0xd2/0x1f0 kernel/sched/core.c:6500
schedule_timeout+0x1db/0x2a0 kernel/time/timer.c:1911
down_read_failed drivers/tty/tty_ldsem.c:200 [inline]
__ldsem_down_read_nested+0x39e/0x850 drivers/tty/tty_ldsem.c:305
tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
tty_ioctl+0xbe7/0x15e0 drivers/tty/tty_io.c:2782
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856
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+0x46/0xb0
RIP: 0033:0x7f7123e89109
RSP: 002b:00007f7125060168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f7123f9c030 RCX: 00007f7123e89109
RDX: 0000000020000000 RSI: 0000000000005457 RDI: 0000000000000004
RBP: 00007f7123ee30ad R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc53397b8f R14: 00007f7125060300 R15: 0000000000022000
INFO: task syz-executor.2:9891 blocked for more than 146 seconds.
Not tainted 5.19.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:28520 pid: 9891 ppid: 9673 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5116 [inline]
__schedule+0xa00/0x4b30 kernel/sched/core.c:6428
schedule+0xd2/0x1f0 kernel/sched/core.c:6500
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6559
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa70/0x1350 kernel/locking/mutex.c:747
tty_lock+0xbd/0x120 drivers/tty/tty_mutex.c:20
__tty_hangup.part.0+0xba/0x830 drivers/tty/tty_io.c:597
__tty_hangup drivers/tty/tty_io.c:592 [inline]
tty_vhangup+0x1d/0x30 drivers/tty/tty_io.c:707
pty_close+0x39f/0x4f0 drivers/tty/pty.c:79
tty_release+0x45e/0x1200 drivers/tty/tty_io.c:1758
__fput+0x277/0x9d0 fs/file_table.c:317
task_work_run+0xdd/0x1a0 kernel/task_work.c:177
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop kernel/entry/common.c:169 [inline]
exit_to_user_mode_prepare+0x23c/0x250 kernel/entry/common.c:201
__syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
syscall_exit_to_user_mode+0x19/0x50 kernel/entry/common.c:294
do_syscall_64+0x42/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x46/0xb0
RIP: 0033:0x7fdb8303bd4b
RSP: 002b:00007ffd2ece5a80 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000004 RCX: 00007fdb8303bd4b
RDX: 0000001b30320000 RSI: 00007fdb82c03600 RDI: 0000000000000003
RBP: 00007fdb8319d960 R08: 0000000000000000 R09: 00000000dad9fb48
R10: 00007ffd2ed0b090 R11: 0000000000000293 R12: 000000000030ce58
R13: 00007ffd2ece5b80 R14: 00007ffd2ece5ba0 R15: 0000000000000032
INFO: task syz-executor.2:9892 blocked for more than 146 seconds.
Not tainted 5.19.0-rc1-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:27960 pid: 9892 ppid: 9673 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5116 [inline]
__schedule+0xa00/0x4b30 kernel/sched/core.c:6428
schedule+0xd2/0x1f0 kernel/sched/core.c:6500
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6559
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa70/0x1350 kernel/locking/mutex.c:747
slcan_open+0xe8/0xcc0 drivers/net/can/slcan.c:584
tty_ldisc_open+0x9b/0x110 drivers/tty/tty_ldisc.c:433
tty_set_ldisc+0x2f1/0x680 drivers/tty/tty_ldisc.c:558
tiocsetd drivers/tty/tty_io.c:2433 [inline]
tty_ioctl+0xae0/0x15e0 drivers/tty/tty_io.c:2714
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl fs/ioctl.c:856 [inline]
__x64_sys_ioctl+0x193/0x200 fs/ioctl.c:856
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+0x46/0xb0
RIP: 0033:0x7fdb83089109
RSP: 002b:00007fdb84164168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fdb8319bf60 RCX: 00007fdb83089109
RDX: 0000000020000180 RSI: 0000000000005423 RDI: 0000000000000005
RBP: 00007fdb830e30ad R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd2ece5a1f R14: 00007fdb84164300 R15: 0000000000022000
Showing all locks held in the system:
1 lock held by pr/ttyS0/16:
1 lock held by ksoftirqd/1/22:
1 lock held by khungtaskd/29:
#0: ffffffff8bd83be0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6491
1 lock held by hwrng/754:
#0: ffffffff8c829c28 (reading_mutex){+.+.}-{3:3}, at: hwrng_fillfn+0x141/0x370 drivers/char/hw_random/core.c:503
2 locks held by getty/3292:
#0: ffff88814b4d7098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc900013f02e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xe50/0x13c0 drivers/tty/n_tty.c:2124
5 locks held by kworker/u4:16/8030:
#0: ffff8881400a3138 ((wq_completion)netns){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff8881400a3138 ((wq_completion)netns){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff8881400a3138 ((wq_completion)netns){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff8881400a3138 ((wq_completion)netns){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff8881400a3138 ((wq_completion)netns){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff8881400a3138 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
#1: ffffc90003f2fda8 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
#2: ffffffff8d571010 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x9b/0xb00 net/core/net_namespace.c:556
#3: ffffffff8d5844a8 (rtnl_mutex){+.+.}-{3:3}, at: default_device_exit_batch+0x8e/0x590 net/core/dev.c:11314
#4: ffffffff8bd8dee0 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:290 [inline]
#4: ffffffff8bd8dee0 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x4f8/0x610 kernel/rcu/tree_exp.h:927
3 locks held by kworker/1:33/22450:
#0: ffff888011873d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888011873d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888011873d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888011873d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888011873d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888011873d38 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
#1: ffffc900052dfda8 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
#2: ffffffff8d5844a8 (rtnl_mutex){+.+.}-{3:3}, at: reg_check_chans_work+0x83/0xe20 net/wireless/reg.c:2461
2 locks held by kworker/0:16/22923:
#0: ffff888011876538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888011876538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888011876538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888011876538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888011876538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888011876538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
#1: ffffc90003c07da8 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
3 locks held by kworker/0:17/22924:
#0: ffff888011867d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888011867d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888011867d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888011867d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888011867d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888011867d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
#1: ffffc900043cfda8 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
#2: ffffffff8d5844a8 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xb/0x60 net/core/link_watch.c:263
3 locks held by kworker/0:0/1961:
#0: ffff88814a864938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff88814a864938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff88814a864938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff88814a864938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff88814a864938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff88814a864938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
#1: ffffc90004ebfda8 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
#2: ffffffff8d5844a8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0xe/0x20 net/ipv6/addrconf.c:4620
3 locks held by kworker/u4:11/6270:
3 locks held by kworker/1:29/6701:
#0: ffff88814a864938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff88814a864938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff88814a864938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff88814a864938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff88814a864938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff88814a864938 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
#1: ffffc90005dbfda8 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
#2: ffffffff8d5844a8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0xe/0x20 net/ipv6/addrconf.c:4620
3 locks held by kworker/0:13/8338:
#0: ffff888011867d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff888011867d38 ((wq_completion)events){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff888011867d38 ((wq_completion)events){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff888011867d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff888011867d38 ((wq_completion)events){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff888011867d38 ((wq_completion)events){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
#1: ffffc9000508fda8 (deferred_process_work){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
#2: ffffffff8d5844a8 (rtnl_mutex){+.+.}-{3:3}, at: switchdev_deferred_process_work+0xa/0x20 net/switchdev/switchdev.c:75
1 lock held by syz-executor.3/9886:
#0: ffffffff8d5844a8 (rtnl_mutex){+.+.}-{3:3}, at: arp_ioctl+0x22c/0x830 net/ipv4/arp.c:1214
2 locks held by syz-executor.1/9884:
#0: ffffffff8d61fb70 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:802
#1: ffffffff8d5844a8 (rtnl_mutex){+.+.}-{3:3}, at: nl80211_pre_doit+0xae/0x600 net/wireless/nl80211.c:15374
2 locks held by syz-executor.5/9888:
#0: ffff888078ee41c0 (&tty->legacy_mutex){+.+.}-{3:3}, at: tty_lock+0xbd/0x120 drivers/tty/tty_mutex.c:20
#1: ffff88806e4c11c0 (&tty->legacy_mutex/1){+.+.}-{3:3}, at: tty_lock+0xbd/0x120 drivers/tty/tty_mutex.c:20
3 locks held by syz-executor.5/9890:
#0: ffff88806e4c11c0 (&tty->legacy_mutex/1){+.+.}-{3:3}, at: tty_lock+0xbd/0x120 drivers/tty/tty_mutex.c:20
#1: ffff88806e4c1098 (&tty->ldisc_sem){++++}-{0:0}, at: __tty_ldisc_lock drivers/tty/tty_ldisc.c:290 [inline]
#1: ffff88806e4c1098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_lock+0x61/0xb0 drivers/tty/tty_ldisc.c:314
#2: ffffffff8d5844a8 (rtnl_mutex){+.+.}-{3:3}, at: slcan_open+0xe8/0xcc0 drivers/net/can/slcan.c:584
1 lock held by syz-executor.5/9894:
#0: ffff88806e4c1098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
2 locks held by syz-executor.2/9891:
#0: ffff8880290961c0 (&tty->legacy_mutex){+.+.}-{3:3}, at: tty_lock+0xbd/0x120 drivers/tty/tty_mutex.c:20
#1: ffff88802c0b91c0 (&tty->legacy_mutex/1){+.+.}-{3:3}, at: tty_lock+0xbd/0x120 drivers/tty/tty_mutex.c:20
3 locks held by syz-executor.2/9892:
#0: ffff88802c0b91c0 (&tty->legacy_mutex/1){+.+.}-{3:3}, at: tty_lock+0xbd/0x120 drivers/tty/tty_mutex.c:20
#1: ffff88802c0b9098 (&tty->ldisc_sem){++++}-{0:0}, at: __tty_ldisc_lock drivers/tty/tty_ldisc.c:290 [inline]
#1: ffff88802c0b9098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_lock+0x61/0xb0 drivers/tty/tty_ldisc.c:314
#2: ffffffff8d5844a8 (rtnl_mutex){+.+.}-{3:3}, at: slcan_open+0xe8/0xcc0 drivers/net/can/slcan.c:584
1 lock held by syz-executor.2/9895:
#0: ffff88802c0b9098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
2 locks held by syz-executor.0/9897:
#0: ffff88802a2d0130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1691 [inline]
#0: ffff88802a2d0130 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_setsockopt+0x1dd/0x3c80 net/packet/af_packet.c:3792
#1: ffffffff8d5844a8 (rtnl_mutex){+.+.}-{3:3}, at: prb_calc_retire_blk_tmo+0x7d/0x1e0 net/packet/af_packet.c:576
1 lock held by syz-executor.4/9907:
#0: ffffffff8d5844a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8d5844a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e5/0xc90 net/core/rtnetlink.c:6086
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 5.19.0-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+0x1e6/0x230 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
watchdog+0xc22/0xf90 kernel/hung_task.c:378
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 22 Comm: ksoftirqd/1 Not tainted 5.19.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:unwind_next_frame+0x6a/0x1cc0 arch/x86/kernel/unwind_orc.c:419
Code: 5b 5d 41 5c 41 5d 41 5e 41 5f c3 49 8d 6d 48 48 b8 00 00 00 00 00 fc ff df 48 89 ea 48 c1 ea 03 80 3c 02 00 0f 85 d4 15 00 00 <49> 8b 45 48 48 89 44 24 10 49 8d 45 38 48 89 c2 48 89 44 24 08 48
RSP: 0018:ffffc900003de568 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 1ffff9200007bcc4 RSI: ffffffff8834f1b4 RDI: ffffc900003de5d8
RBP: ffffc900003de620 R08: 0000000000000001 R09: ffffc900003de60c
R10: fffff5200007bcc6 R11: ffffc900003def40 R12: ffffc900003de690
R13: ffffc900003de5d8 R14: ffff8880128d20c0 R15: ffff888016b3ed00
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055e41f3f6600 CR3: 000000007d6b1000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
arch_stack_walk+0x7d/0xe0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8c/0xc0 kernel/stacktrace.c:122
kasan_save_stack+0x1e/0x40 mm/kasan/common.c:38
kasan_set_track+0x21/0x30 mm/kasan/common.c:45
kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:370
____kasan_slab_free mm/kasan/common.c:366 [inline]
____kasan_slab_free+0x13d/0x180 mm/kasan/common.c:328
kasan_slab_free include/linux/kasan.h:200 [inline]
__cache_free mm/slab.c:3425 [inline]
kmem_cache_free.part.0+0xa9/0x240 mm/slab.c:3735
kfree_skbmem+0xef/0x1b0 net/core/skbuff.c:700
kfree_skb_reason+0x85/0x110 include/linux/refcount.h:279
kfree_skb include/linux/skbuff.h:1375 [inline]
packet_rcv+0xe61/0x1580 net/packet/af_packet.c:2232
dev_queue_xmit_nit+0x7fe/0xb10 net/core/dev.c:2295
xmit_one net/core/dev.c:3584 [inline]
dev_hard_start_xmit+0xa4/0x880 net/core/dev.c:3604
__dev_queue_xmit+0x2b1d/0x3900 net/core/dev.c:4253
dev_queue_xmit include/linux/netdevice.h:2994 [inline]
br_dev_queue_push_xmit+0x26a/0x740 net/bridge/br_forward.c:53
br_nf_dev_queue_xmit+0x5f7/0x1f00 net/bridge/br_netfilter_hooks.c:807
NF_HOOK include/linux/netfilter.h:307 [inline]
NF_HOOK include/linux/netfilter.h:301 [inline]
br_nf_post_routing+0xf6d/0x1b90 net/bridge/br_netfilter_hooks.c:853
nf_hook_entry_hookfn include/linux/netfilter.h:142 [inline]
nf_hook_slow+0xc5/0x1f0 net/netfilter/core.c:620
nf_hook+0x3d4/0x680 include/linux/netfilter.h:262
NF_HOOK include/linux/netfilter.h:305 [inline]
br_forward_finish+0xd4/0x130 net/bridge/br_forward.c:66
br_nf_hook_thresh+0x2a5/0x360 net/bridge/br_netfilter_hooks.c:1024
br_nf_forward_finish+0x7d6/0xc60 net/bridge/br_netfilter_hooks.c:564
NF_HOOK include/linux/netfilter.h:307 [inline]
NF_HOOK include/linux/netfilter.h:301 [inline]
br_nf_forward_ip net/bridge/br_netfilter_hooks.c:634 [inline]
br_nf_forward_ip+0x1094/0x1cf0 net/bridge/br_netfilter_hooks.c:575
nf_hook_entry_hookfn include/linux/netfilter.h:142 [inline]
nf_hook_slow+0xc5/0x1f0 net/netfilter/core.c:620
nf_hook+0x3d4/0x680 include/linux/netfilter.h:262
NF_HOOK include/linux/netfilter.h:305 [inline]
__br_forward+0x19a/0x580 net/bridge/br_forward.c:115
deliver_clone net/bridge/br_forward.c:131 [inline]
maybe_deliver+0x331/0x430 net/bridge/br_forward.c:189
br_flood+0x13a/0x460 net/bridge/br_forward.c:231
br_handle_frame_finish+0x112b/0x1a80 net/bridge/br_input.c:193
br_nf_hook_thresh+0x2a5/0x360 net/bridge/br_netfilter_hooks.c:1024
br_nf_pre_routing_finish+0x909/0x1ad0 net/bridge/br_netfilter_hooks.c:422
NF_HOOK include/linux/netfilter.h:307 [inline]
NF_HOOK include/linux/netfilter.h:301 [inline]
br_nf_pre_routing+0xae3/0x1f00 net/bridge/br_netfilter_hooks.c:531
nf_hook_entry_hookfn include/linux/netfilter.h:142 [inline]
nf_hook_bridge_pre net/bridge/br_input.c:255 [inline]
br_handle_frame+0x8df/0x1280 net/bridge/br_input.c:399
__netif_receive_skb_core+0xa13/0x3920 net/core/dev.c:5372
__netif_receive_skb_one_core+0xae/0x180 net/core/dev.c:5476
__netif_receive_skb+0x24/0x1b0 net/core/dev.c:5592
process_backlog+0x3a0/0x7c0 net/core/dev.c:5920
__napi_poll+0xb3/0x6e0 net/core/dev.c:6486
napi_poll net/core/dev.c:6553 [inline]
net_rx_action+0x9c1/0xd90 net/core/dev.c:6664
__do_softirq+0x29b/0x9c2 kernel/softirq.c:571
run_ksoftirqd kernel/softirq.c:934 [inline]
run_ksoftirqd+0x2d/0x60 kernel/softirq.c:926
smpboot_thread_fn+0x645/0x9c0 kernel/smpboot.c:164
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
----------------
Code disassembly (best guess):
0: 5b pop %rbx
1: 5d pop %rbp
2: 41 5c pop %r12
4: 41 5d pop %r13
6: 41 5e pop %r14
8: 41 5f pop %r15
a: c3 retq
b: 49 8d 6d 48 lea 0x48(%r13),%rbp
f: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
16: fc ff df
19: 48 89 ea mov %rbp,%rdx
1c: 48 c1 ea 03 shr $0x3,%rdx
20: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1)
24: 0f 85 d4 15 00 00 jne 0x15fe
* 2a: 49 8b 45 48 mov 0x48(%r13),%rax <-- trapping instruction
2e: 48 89 44 24 10 mov %rax,0x10(%rsp)
33: 49 8d 45 38 lea 0x38(%r13),%rax
37: 48 89 c2 mov %rax,%rdx
3a: 48 89 44 24 08 mov %rax,0x8(%rsp)
3f: 48 rex.W