INFO: task kworker/u8:10:3027 blocked for more than 143 seconds.
Not tainted 6.12.0-rc2-syzkaller-00550-g76d37e4fd638 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u8:10 state:D stack:22320 pid:3027 tgid:3027 ppid:2 flags:0x00004000
Workqueue: netns cleanup_net
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
schedule_timeout+0xb0/0x310 kernel/time/timer.c:2591
do_wait_for_common kernel/sched/completion.c:95 [inline]
__wait_for_common kernel/sched/completion.c:116 [inline]
wait_for_common kernel/sched/completion.c:127 [inline]
wait_for_completion+0x355/0x620 kernel/sched/completion.c:148
__flush_work+0xa37/0xc50 kernel/workqueue.c:4217
flush_all_backlogs net/core/dev.c:6043 [inline]
unregister_netdevice_many_notify+0x87b/0x1da0 net/core/dev.c:11390
cleanup_net+0x75d/0xcc0 net/core/net_namespace.c:628
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
INFO: task syz.1.54:5519 blocked for more than 143 seconds.
Not tainted 6.12.0-rc2-syzkaller-00550-g76d37e4fd638 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.54 state:D stack:26936 pid:5519 tgid:5516 ppid:5243 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752
ip6_mroute_setsockopt+0xa87/0x1340 net/ipv6/ip6mr.c:1724
do_ipv6_setsockopt+0x490/0x3640 net/ipv6/ipv6_sockglue.c:415
ipv6_setsockopt+0x5d/0x170 net/ipv6/ipv6_sockglue.c:993
rawv6_setsockopt+0x327/0x740 net/ipv6/raw.c:1054
do_sock_setsockopt+0x3af/0x720 net/socket.c:2334
__sys_setsockopt+0x1a2/0x250 net/socket.c:2357
__do_sys_setsockopt net/socket.c:2366 [inline]
__se_sys_setsockopt net/socket.c:2363 [inline]
__x64_sys_setsockopt+0xb5/0xd0 net/socket.c:2363
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efc4e97dff9
RSP: 002b:00007efc4f73e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007efc4eb35f80 RCX: 00007efc4e97dff9
RDX: 00000000000000d2 RSI: 0000000000000029 RDI: 0000000000000003
RBP: 00007efc4e9f0296 R08: 000000000000005c R09: 0000000000000000
R10: 0000000020000600 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007efc4eb35f80 R15: 00007ffc9255a768
INFO: task syz.1.54:5523 blocked for more than 144 seconds.
Not tainted 6.12.0-rc2-syzkaller-00550-g76d37e4fd638 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.54 state:D stack:27392 pid:5523 tgid:5516 ppid:5243 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752
ip6_mroute_setsockopt+0xa87/0x1340 net/ipv6/ip6mr.c:1724
do_ipv6_setsockopt+0x490/0x3640 net/ipv6/ipv6_sockglue.c:415
ipv6_setsockopt+0x5d/0x170 net/ipv6/ipv6_sockglue.c:993
rawv6_setsockopt+0x327/0x740 net/ipv6/raw.c:1054
do_sock_setsockopt+0x3af/0x720 net/socket.c:2334
__sys_setsockopt+0x1a2/0x250 net/socket.c:2357
__do_sys_setsockopt net/socket.c:2366 [inline]
__se_sys_setsockopt net/socket.c:2363 [inline]
__x64_sys_setsockopt+0xb5/0xd0 net/socket.c:2363
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efc4e97dff9
RSP: 002b:00007efc4f71d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007efc4eb36058 RCX: 00007efc4e97dff9
RDX: 00000000000000cc RSI: 0000000000000029 RDI: 0000000000000003
RBP: 00007efc4e9f0296 R08: 000000000000005c R09: 0000000000000000
R10: 0000000020000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007efc4eb36058 R15: 00007ffc9255a768
INFO: task syz.1.54:5526 blocked for more than 144 seconds.
Not tainted 6.12.0-rc2-syzkaller-00550-g76d37e4fd638 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.54 state:D stack:27392 pid:5526 tgid:5516 ppid:5243 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752
ip6_mroute_setsockopt+0xc5a/0x1340 net/ipv6/ip6mr.c:1743
do_ipv6_setsockopt+0x490/0x3640 net/ipv6/ipv6_sockglue.c:415
ipv6_setsockopt+0x5d/0x170 net/ipv6/ipv6_sockglue.c:993
rawv6_setsockopt+0x327/0x740 net/ipv6/raw.c:1054
do_sock_setsockopt+0x3af/0x720 net/socket.c:2334
__sys_setsockopt+0x1a2/0x250 net/socket.c:2357
__do_sys_setsockopt net/socket.c:2366 [inline]
__se_sys_setsockopt net/socket.c:2363 [inline]
__x64_sys_setsockopt+0xb5/0xd0 net/socket.c:2363
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efc4e97dff9
RSP: 002b:00007efc4f6fc038 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007efc4eb36130 RCX: 00007efc4e97dff9
RDX: 00000000000000d4 RSI: 0000000000000029 RDI: 0000000000000003
RBP: 00007efc4e9f0296 R08: 0000000000000004 R09: 0000000000000000
R10: 0000000020000080 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007efc4eb36130 R15: 00007ffc9255a768
INFO: task syz.1.54:5528 blocked for more than 145 seconds.
Not tainted 6.12.0-rc2-syzkaller-00550-g76d37e4fd638 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.54 state:D stack:27360 pid:5528 tgid:5516 ppid:5243 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752
wext_ioctl_dispatch+0x106/0x640 net/wireless/wext-core.c:1015
wext_handle_ioctl+0x15f/0x270 net/wireless/wext-core.c:1077
sock_ioctl+0x17c/0x8e0 net/socket.c:1280
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:907 [inline]
__se_sys_ioctl+0xf9/0x170 fs/ioctl.c:893
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7efc4e97dff9
RSP: 002b:00007efc4f6db038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007efc4eb36208 RCX: 00007efc4e97dff9
RDX: 0000000020000040 RSI: 0000000000008b2c RDI: 0000000000000007
RBP: 00007efc4e9f0296 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007efc4eb36208 R15: 00007ffc9255a768
INFO: task syz.0.53:5518 blocked for more than 145 seconds.
Not tainted 6.12.0-rc2-syzkaller-00550-g76d37e4fd638 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.53 state:D stack:24216 pid:5518 tgid:5517 ppid:5233 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6774
schedule_preempt_disabled+0x13/0x30 kernel/sched/core.c:6831
__mutex_lock_common kernel/locking/mutex.c:684 [inline]
__mutex_lock+0x6a7/0xd70 kernel/locking/mutex.c:752
raw_release+0x1b8/0x8b0 net/can/raw.c:415
__sock_release net/socket.c:658 [inline]
sock_close+0xbc/0x240 net/socket.c:1426
__fput+0x23f/0x880 fs/file_table.c:431
task_work_run+0x24f/0x310 kernel/task_work.c:228
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0xa2f/0x28e0 kernel/exit.c:939
do_group_exit+0x207/0x2c0 kernel/exit.c:1088
get_signal+0x16a3/0x1740 kernel/signal.c:2917
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f8bdad7dff9
RSP: 002b:00007f8bdbc080e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f8bdaf35f88 RCX: 00007f8bdad7dff9
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f8bdaf35f88
RBP: 00007f8bdaf35f80 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8bdaf35f8c
R13: 0000000000000000 R14: 00007fffe1bf9b30 R15: 00007fffe1bf9c18
Showing all locks held in the system:
3 locks held by kworker/0:0/8:
#0: ffff88801ac81948 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff88801ac81948 ((wq_completion)events_power_efficient){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1: ffffc900000d7d00 ((reg_check_chans).work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc900000d7d00 ((reg_check_chans).work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
#2: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: reg_check_chans_work+0x99/0xfd0 net/wireless/reg.c:2480
1 lock held by khungtaskd/30:
#0: ffffffff8e937de0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
#0: ffffffff8e937de0 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:849 [inline]
#0: ffffffff8e937de0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x55/0x2a0 kernel/locking/lockdep.c:6720
3 locks held by kworker/1:2/1177:
3 locks held by kworker/u8:6/2450:
#0: ffff88814be4d148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff88814be4d148 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1: ffffc90009177d00 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc90009177d00 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
#2: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0x19/0x30 net/ipv6/addrconf.c:4736
5 locks held by kworker/u8:10/3027:
#0: ffff88801baed948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3204 [inline]
#0: ffff88801baed948 ((wq_completion)netns){+.+.}-{0:0}, at: process_scheduled_works+0x93b/0x1850 kernel/workqueue.c:3310
#1: ffffc9000a3e7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work kernel/workqueue.c:3205 [inline]
#1: ffffc9000a3e7d00 (net_cleanup_work){+.+.}-{0:0}, at: process_scheduled_works+0x976/0x1850 kernel/workqueue.c:3310
#2: ffffffff8fcc6410 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0x16a/0xcc0 net/core/net_namespace.c:587
#3: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: cleanup_net+0x6af/0xcc0 net/core/net_namespace.c:623
#4: ffffffff8e7d1dd0 (cpu_hotplug_lock){++++}-{0:0}, at: flush_all_backlogs net/core/dev.c:6027 [inline]
#4: ffffffff8e7d1dd0 (cpu_hotplug_lock){++++}-{0:0}, at: unregister_netdevice_many_notify+0x5ea/0x1da0 net/core/dev.c:11390
2 locks held by getty/4986:
#0: ffff88802e88b0a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70 drivers/tty/tty_ldisc.c:243
#1: ffffc90002f062f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6a6/0x1e00 drivers/tty/n_tty.c:2211
1 lock held by syz-executor/5233:
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:698 [inline]
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x3b/0x1b0 drivers/net/tun.c:3517
6 locks held by kworker/1:6/5289:
1 lock held by syz.2.52/5510:
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: tun_detach drivers/net/tun.c:698 [inline]
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: tun_chr_close+0x3b/0x1b0 drivers/net/tun.c:3517
1 lock held by syz.1.54/5519:
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: ip6_mroute_setsockopt+0xa87/0x1340 net/ipv6/ip6mr.c:1724
1 lock held by syz.1.54/5523:
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: ip6_mroute_setsockopt+0xa87/0x1340 net/ipv6/ip6mr.c:1724
1 lock held by syz.1.54/5526:
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: ip6_mroute_setsockopt+0xc5a/0x1340 net/ipv6/ip6mr.c:1743
1 lock held by syz.1.54/5528:
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: wext_ioctl_dispatch+0x106/0x640 net/wireless/wext-core.c:1015
2 locks held by syz.0.53/5518:
#0: ffff8880792fa008 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:815 [inline]
#0: ffff8880792fa008 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: __sock_release net/socket.c:657 [inline]
#0: ffff8880792fa008 (&sb->s_type->i_mutex_key#10){+.+.}-{3:3}, at: sock_close+0x90/0x240 net/socket.c:1426
#1: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: raw_release+0x1b8/0x8b0 net/can/raw.c:415
4 locks held by syz.3.57/5537:
#0: ffff888024540420 (sb_writers#11){.+.+}-{0:0}, at: mnt_want_write+0x3f/0x90 fs/namespace.c:515
#1: ffff88807abd0b58 (&type->i_mutex_dir_key#7/1){+.+.}-{3:3}, at: inode_lock_nested include/linux/fs.h:850 [inline]
#1: ffff88807abd0b58 (&type->i_mutex_dir_key#7/1){+.+.}-{3:3}, at: filename_create+0x260/0x540 fs/namei.c:4026
#2: ffffffff8e96c4e8 (cgroup_mutex){+.+.}-{3:3}, at: cgroup_lock include/linux/cgroup.h:368 [inline]
#2: ffffffff8e96c4e8 (cgroup_mutex){+.+.}-{3:3}, at: cgroup_kn_lock_live+0xe6/0x290 kernel/cgroup/cgroup.c:1662
#3: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: cgrp_css_online+0x90/0x2f0 net/core/netprio_cgroup.c:157
4 locks held by syz.3.57/5538:
#0: ffff888030b7a638 (&f->f_pos_lock){+.+.}-{3:3}, at: fdget_pos+0x24e/0x320 fs/file.c:1160
#1: ffff88807c82a420 (sb_writers#11){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2931 [inline]
#1: ffff88807c82a420 (sb_writers#11){.+.+}-{0:0}, at: vfs_write+0x224/0xc90 fs/read_write.c:679
#2: ffff88807cd39c88 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1ea/0x500 fs/kernfs/file.c:325
#3: ffffffff8e96c4e8 (cgroup_mutex){+.+.}-{3:3}, at: cgroup_lock include/linux/cgroup.h:368 [inline]
#3: ffffffff8e96c4e8 (cgroup_mutex){+.+.}-{3:3}, at: cgroup_kn_lock_live+0xe6/0x290 kernel/cgroup/cgroup.c:1662
1 lock held by syz.3.57/5539:
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: wext_ioctl_dispatch+0x106/0x640 net/wireless/wext-core.c:1015
4 locks held by syz.3.57/5541:
#0: ffff8880301260f8 (&f->f_pos_lock){+.+.}-{3:3}, at: fdget_pos+0x24e/0x320 fs/file.c:1160
#1: ffff88807c82a420 (sb_writers#11){.+.+}-{0:0}, at: file_start_write include/linux/fs.h:2931 [inline]
#1: ffff88807c82a420 (sb_writers#11){.+.+}-{0:0}, at: vfs_write+0x224/0xc90 fs/read_write.c:679
#2: ffff8880312a0088 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1ea/0x500 fs/kernfs/file.c:325
#3: ffffffff8e96c4e8 (cgroup_mutex){+.+.}-{3:3}, at: cgroup_lock include/linux/cgroup.h:368 [inline]
#3: ffffffff8e96c4e8 (cgroup_mutex){+.+.}-{3:3}, at: cgroup_kn_lock_live+0xe6/0x290 kernel/cgroup/cgroup.c:1662
2 locks held by syz.3.57/5542:
#0: ffff88802fe5b2f0 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xb4/0xd70 fs/seq_file.c:182
#1: ffff88807cd39c88 (&of->mutex){+.+.}-{3:3}, at: kernfs_seq_start+0x53/0x3b0 fs/kernfs/file.c:154
1 lock held by syz.4.60/5549:
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: do_ipv6_setsockopt+0x9e8/0x3640 net/ipv6/ipv6_sockglue.c:566
1 lock held by syz.4.60/5550:
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: do_ipv6_setsockopt+0x9e8/0x3640 net/ipv6/ipv6_sockglue.c:566
1 lock held by syz.4.60/5551:
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: do_ipv6_setsockopt+0x9e8/0x3640 net/ipv6/ipv6_sockglue.c:566
1 lock held by syz.4.60/5552:
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6746
1 lock held by syz-executor/5558:
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6746
1 lock held by syz-executor/5559:
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6746
1 lock held by syz-executor/5563:
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6746
1 lock held by syz-executor/5566:
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6746
1 lock held by syz-executor/5569:
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6746
1 lock held by syz-executor/5582:
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6746
1 lock held by syz-executor/5586:
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6746
1 lock held by syz-executor/5587:
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6746
1 lock held by syz-executor/5591:
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6746
1 lock held by syz-executor/5593:
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6746
1 lock held by syz-executor/5600:
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6746
1 lock held by syz-executor/5604:
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6746
1 lock held by syz-executor/5607:
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6746
1 lock held by syz-executor/5610:
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6746
1 lock held by syz-executor/5613:
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:79 [inline]
#0: ffffffff8fcd2f88 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x6e6/0xcf0 net/core/rtnetlink.c:6746
2 locks held by dhcpcd/5620:
#0: ffff888085808258 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1617 [inline]
#0: ffff888085808258 (sk_lock-AF_PACKET){+.+.}-{0:0}, at: packet_do_bind+0x32/0xcb0 net/packet/af_packet.c:3266
#1: ffffffff8e93d378 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:297 [inline]
#1: ffffffff8e93d378 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x381/0x830 kernel/rcu/tree_exp.h:976
=============================================
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.12.0-rc2-syzkaller-00550-g76d37e4fd638 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
nmi_cpu_backtrace+0x49c/0x4d0 lib/nmi_backtrace.c:113
nmi_trigger_cpumask_backtrace+0x198/0x320 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
watchdog+0xff4/0x1040 kernel/hung_task.c:379
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 5289 Comm: kworker/1:6 Not tainted 6.12.0-rc2-syzkaller-00550-g76d37e4fd638 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events nsim_dev_trap_report_work
RIP: 0010:unwind_next_frame+0x12d/0x22d0
Code: 6d 35 48 89 e8 48 c1 e8 03 48 89 44 24 28 42 0f b6 04 20 84 c0 0f 85 b8 19 00 00 4c 0f be 7d 00 48 8b 44 24 30 42 80 3c 20 00 <48> 8b 5c 24 18 74 08 48 89 df e8 64 30 bd 00 4c 03 3b 49 ff cf 4c
RSP: 0018:ffffc90000a17570 EFLAGS: 00000246
RAX: 1ffff92000142ed1 RBX: 0000000000000000 RCX: ffffffff9a3d3903
RDX: dffffc0000000000 RSI: ffffffff89f069b8 RDI: 0000000000000001
RBP: ffffc90000a17675 R08: 000000000000000e R09: ffffc90000a17730
R10: ffffc90000a17690 R11: ffffffff8180a0e0 R12: dffffc0000000000
R13: ffffc90000a17640 R14: ffffffff89f069b8 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3301aff8 CR3: 000000000e734000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
kasan_save_stack+0x3f/0x60 mm/kasan/common.c:47
__kasan_record_aux_stack+0xac/0xc0 mm/kasan/generic.c:541
__call_rcu_common kernel/rcu/tree.c:3086 [inline]
call_rcu+0x167/0xa70 kernel/rcu/tree.c:3190
slab_free_hook mm/slub.c:2306 [inline]
slab_free mm/slub.c:4579 [inline]
kmem_cache_free+0x2fc/0x420 mm/slub.c:4681
nf_conntrack_free+0x2fd/0x390 net/netfilter/nf_conntrack_core.c:1735
nf_ct_put include/net/netfilter/nf_conntrack.h:186 [inline]
nf_conntrack_in+0xb51/0x1890 net/netfilter/nf_conntrack_core.c:2061
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626
nf_hook+0x2c4/0x450 include/linux/netfilter.h:269
__ip_local_out+0x3d9/0x4e0 net/ipv4/ip_output.c:119
ip_local_out+0x26/0x70 net/ipv4/ip_output.c:128
synproxy_send_client_synack+0x8b8/0xf30 net/netfilter/nf_synproxy_core.c:484
nft_synproxy_eval_v4+0x3ca/0x610 net/netfilter/nft_synproxy.c:59
nft_synproxy_do_eval+0x362/0xa60 net/netfilter/nft_synproxy.c:141
expr_call_ops_eval net/netfilter/nf_tables_core.c:240 [inline]
nft_do_chain+0x4ad/0x1da0 net/netfilter/nf_tables_core.c:288
nft_do_chain_inet+0x418/0x6b0 net/netfilter/nft_chain_filter.c:161
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626
nf_hook include/linux/netfilter.h:269 [inline]
NF_HOOK+0x29e/0x450 include/linux/netfilter.h:312
NF_HOOK+0x3a4/0x450 include/linux/netfilter.h:314
__netif_receive_skb_one_core net/core/dev.c:5668 [inline]
__netif_receive_skb+0x2bf/0x650 net/core/dev.c:5781
process_backlog+0x662/0x15b0 net/core/dev.c:6113
__napi_poll+0xcb/0x490 net/core/dev.c:6777
napi_poll net/core/dev.c:6846 [inline]
net_rx_action+0x89b/0x1240 net/core/dev.c:6968
handle_softirqs+0x2c5/0x980 kernel/softirq.c:554
do_softirq+0x11b/0x1e0 kernel/softirq.c:455
__local_bh_enable_ip+0x1bb/0x200 kernel/softirq.c:382
spin_unlock_bh include/linux/spinlock.h:396 [inline]
nsim_dev_trap_report drivers/net/netdevsim/dev.c:820 [inline]
nsim_dev_trap_report_work+0x75d/0xaa0 drivers/net/netdevsim/dev.c:850
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244