INFO: task syz-executor215:3679 blocked for more than 143 seconds.
      Not tainted 6.1.0-rc6-syzkaller-00015-gc3eb11fbb826 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor215 state:D stack:27272 pid:3679  ppid:3662   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0xae9/0x53f0 kernel/sched/core.c:6521
 schedule+0xde/0x1b0 kernel/sched/core.c:6597
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6656
 __mutex_lock_common kernel/locking/mutex.c:679 [inline]
 __mutex_lock+0xa48/0x1360 kernel/locking/mutex.c:747
 nfnl_lock net/netfilter/nfnetlink.c:97 [inline]
 nfnetlink_rcv_msg+0xaae/0x1430 net/netfilter/nfnetlink.c:294
 netlink_rcv_skb+0x157/0x430 net/netlink/af_netlink.c:2540
 nfnetlink_rcv+0x1b0/0x420 net/netfilter/nfnetlink.c:659
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x547/0x7f0 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x91b/0xe10 net/netlink/af_netlink.c:1921
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg+0xd3/0x120 net/socket.c:734
 ____sys_sendmsg+0x712/0x8c0 net/socket.c:2482
 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2536
 __sys_sendmsg+0xf7/0x1c0 net/socket.c:2565
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f6ecab990e9
RSP: 002b:00007ffe8784c2b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00000000000f4240 RCX: 00007f6ecab990e9
RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: 00007ffe8784bd30 R11: 0000000000000246 R12: 00000000000756c9
R13: 00007ffe8784c2cc R14: 00007ffe8784c2e0 R15: 00007ffe8784c2d0
 </TASK>
INFO: task syz-executor215:3680 blocked for more than 143 seconds.
      Not tainted 6.1.0-rc6-syzkaller-00015-gc3eb11fbb826 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor215 state:D stack:27952 pid:3680  ppid:3661   flags:0x00000004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0xae9/0x53f0 kernel/sched/core.c:6521
 schedule+0xde/0x1b0 kernel/sched/core.c:6597
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6656
 __mutex_lock_common kernel/locking/mutex.c:679 [inline]
 __mutex_lock+0xa48/0x1360 kernel/locking/mutex.c:747
 nfnl_lock net/netfilter/nfnetlink.c:97 [inline]
 nfnetlink_rcv_msg+0xaae/0x1430 net/netfilter/nfnetlink.c:294
 netlink_rcv_skb+0x157/0x430 net/netlink/af_netlink.c:2540
 nfnetlink_rcv+0x1b0/0x420 net/netfilter/nfnetlink.c:659
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x547/0x7f0 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x91b/0xe10 net/netlink/af_netlink.c:1921
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg+0xd3/0x120 net/socket.c:734
 ____sys_sendmsg+0x712/0x8c0 net/socket.c:2482
 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2536
 __sys_sendmsg+0xf7/0x1c0 net/socket.c:2565
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f6ecab990e9
RSP: 002b:00007ffe8784c2b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00000000000f4240 RCX: 00007f6ecab990e9
RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: 00007ffe8784bd30 R11: 0000000000000246 R12: 00000000000756c4
R13: 00007ffe8784c2cc R14: 00007ffe8784c2e0 R15: 00007ffe8784c2d0
 </TASK>
INFO: task syz-executor215:3682 blocked for more than 144 seconds.
      Not tainted 6.1.0-rc6-syzkaller-00015-gc3eb11fbb826 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor215 state:D stack:27952 pid:3682  ppid:3666   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0xae9/0x53f0 kernel/sched/core.c:6521
 schedule+0xde/0x1b0 kernel/sched/core.c:6597
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6656
 __mutex_lock_common kernel/locking/mutex.c:679 [inline]
 __mutex_lock+0xa48/0x1360 kernel/locking/mutex.c:747
 nfnl_lock net/netfilter/nfnetlink.c:97 [inline]
 nfnetlink_rcv_msg+0xaae/0x1430 net/netfilter/nfnetlink.c:294
 netlink_rcv_skb+0x157/0x430 net/netlink/af_netlink.c:2540
 nfnetlink_rcv+0x1b0/0x420 net/netfilter/nfnetlink.c:659
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x547/0x7f0 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x91b/0xe10 net/netlink/af_netlink.c:1921
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg+0xd3/0x120 net/socket.c:734
 ____sys_sendmsg+0x712/0x8c0 net/socket.c:2482
 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2536
 __sys_sendmsg+0xf7/0x1c0 net/socket.c:2565
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f6ecab990e9
RSP: 002b:00007ffe8784c2b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00000000000f4240 RCX: 00007f6ecab990e9
RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: 00007ffe8784bd30 R11: 0000000000000246 R12: 00000000000756cc
R13: 00007ffe8784c2cc R14: 00007ffe8784c2e0 R15: 00007ffe8784c2d0
 </TASK>
INFO: task syz-executor215:3683 blocked for more than 144 seconds.
      Not tainted 6.1.0-rc6-syzkaller-00015-gc3eb11fbb826 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor215 state:D stack:27000 pid:3683  ppid:3665   flags:0x00000004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0xae9/0x53f0 kernel/sched/core.c:6521
 schedule+0xde/0x1b0 kernel/sched/core.c:6597
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6656
 __mutex_lock_common kernel/locking/mutex.c:679 [inline]
 __mutex_lock+0xa48/0x1360 kernel/locking/mutex.c:747
 nfnl_lock net/netfilter/nfnetlink.c:97 [inline]
 nfnetlink_rcv_msg+0xaae/0x1430 net/netfilter/nfnetlink.c:294
 netlink_rcv_skb+0x157/0x430 net/netlink/af_netlink.c:2540
 nfnetlink_rcv+0x1b0/0x420 net/netfilter/nfnetlink.c:659
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x547/0x7f0 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x91b/0xe10 net/netlink/af_netlink.c:1921
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg+0xd3/0x120 net/socket.c:734
 ____sys_sendmsg+0x712/0x8c0 net/socket.c:2482
 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2536
 __sys_sendmsg+0xf7/0x1c0 net/socket.c:2565
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f6ecab990e9
RSP: 002b:00007ffe8784c2b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00000000000f4240 RCX: 00007f6ecab990e9
RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: 00007ffe8784bd30 R11: 0000000000000246 R12: 00000000000756cf
R13: 00007ffe8784c2cc R14: 00007ffe8784c2e0 R15: 00007ffe8784c2d0
 </TASK>
INFO: task syz-executor215:3684 blocked for more than 144 seconds.
      Not tainted 6.1.0-rc6-syzkaller-00015-gc3eb11fbb826 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor215 state:D stack:27952 pid:3684  ppid:3664   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0xae9/0x53f0 kernel/sched/core.c:6521
 schedule+0xde/0x1b0 kernel/sched/core.c:6597
 schedule_preempt_disabled+0x13/0x20 kernel/sched/core.c:6656
 __mutex_lock_common kernel/locking/mutex.c:679 [inline]
 __mutex_lock+0xa48/0x1360 kernel/locking/mutex.c:747
 nfnl_lock net/netfilter/nfnetlink.c:97 [inline]
 nfnetlink_rcv_msg+0xaae/0x1430 net/netfilter/nfnetlink.c:294
 netlink_rcv_skb+0x157/0x430 net/netlink/af_netlink.c:2540
 nfnetlink_rcv+0x1b0/0x420 net/netfilter/nfnetlink.c:659
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x547/0x7f0 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x91b/0xe10 net/netlink/af_netlink.c:1921
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg+0xd3/0x120 net/socket.c:734
 ____sys_sendmsg+0x712/0x8c0 net/socket.c:2482
 ___sys_sendmsg+0x110/0x1b0 net/socket.c:2536
 __sys_sendmsg+0xf7/0x1c0 net/socket.c:2565
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f6ecab990e9
RSP: 002b:00007ffe8784c2b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00000000000f4240 RCX: 00007f6ecab990e9
RDX: 0000000000000000 RSI: 0000000020000200 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001
R10: 00007ffe8784bd30 R11: 0000000000000246 R12: 00000000000756cf
R13: 00007ffe8784c2cc R14: 00007ffe8784c2e0 R15: 00007ffe8784c2d0
 </TASK>

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
 #0: ffffffff8c58f0f0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
 #0: ffffffff8c58edf0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/28:
 #0: ffffffff8c58fc40 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x57/0x264 kernel/locking/lockdep.c:6494
2 locks held by getty/3306:
 #0: ffff88814b131098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x26/0x80 drivers/tty/tty_ldisc.c:244
 #1: ffffc900031262f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef4/0x13e0 drivers/tty/n_tty.c:2177
1 lock held by syz-executor215/3679:
 #0: ffffffff91d48cb8 (nfnl_subsys_ipset){+.+.}-{3:3}, at: nfnl_lock net/netfilter/nfnetlink.c:97 [inline]
 #0: ffffffff91d48cb8 (nfnl_subsys_ipset){+.+.}-{3:3}, at: nfnetlink_rcv_msg+0xaae/0x1430 net/netfilter/nfnetlink.c:294
1 lock held by syz-executor215/3680:
 #0: ffffffff91d48cb8 (nfnl_subsys_ipset){+.+.}-{3:3}, at: nfnl_lock net/netfilter/nfnetlink.c:97 [inline]
 #0: ffffffff91d48cb8 (nfnl_subsys_ipset){+.+.}-{3:3}, at: nfnetlink_rcv_msg+0xaae/0x1430 net/netfilter/nfnetlink.c:294
1 lock held by syz-executor215/3681:
1 lock held by syz-executor215/3682:
 #0: ffffffff91d48cb8 (nfnl_subsys_ipset){+.+.}-{3:3}, at: nfnl_lock net/netfilter/nfnetlink.c:97 [inline]
 #0: ffffffff91d48cb8 (nfnl_subsys_ipset){+.+.}-{3:3}, at: nfnetlink_rcv_msg+0xaae/0x1430 net/netfilter/nfnetlink.c:294
1 lock held by syz-executor215/3683:
 #0: ffffffff91d48cb8 (nfnl_subsys_ipset){+.+.}-{3:3}, at: nfnl_lock net/netfilter/nfnetlink.c:97 [inline]
 #0: ffffffff91d48cb8 (nfnl_subsys_ipset){+.+.}-{3:3}, at: nfnetlink_rcv_msg+0xaae/0x1430 net/netfilter/nfnetlink.c:294
1 lock held by syz-executor215/3684:
 #0: ffffffff91d48cb8 (nfnl_subsys_ipset){+.+.}-{3:3}, at: nfnl_lock net/netfilter/nfnetlink.c:97 [inline]
 #0: ffffffff91d48cb8 (nfnl_subsys_ipset){+.+.}-{3:3}, at: nfnetlink_rcv_msg+0xaae/0x1430 net/netfilter/nfnetlink.c:294

=============================================

NMI backtrace for cpu 0
CPU: 0 PID: 28 Comm: khungtaskd Not tainted 6.1.0-rc6-syzkaller-00015-gc3eb11fbb826 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd1/0x138 lib/dump_stack.c:106
 nmi_cpu_backtrace.cold+0x24/0x18a lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x333/0x3c0 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
 watchdog+0xc75/0xfc0 kernel/hung_task.c:377
 kthread+0x2e8/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 16 Comm: rcu_preempt Not tainted 6.1.0-rc6-syzkaller-00015-gc3eb11fbb826 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:rcu_gp_init+0x9d1/0x1450 kernel/rcu/tree.c:1551
Code: 00 48 89 ea 48 c1 ea 03 42 80 3c 3a 00 0f 85 8d 08 00 00 48 83 7d 00 00 0f 85 81 05 00 00 48 89 ea 48 c1 ea 03 42 80 3c 3a 00 <0f> 85 2e 08 00 00 4d 8d 46 40 48 89 45 00 48 8b 15 7a 1c ef 0a 4c
RSP: 0018:ffffc90000157d88 EFLAGS: 00000046
RAX: 0000000000000003 RBX: ffff8880b9b3c000 RCX: ffffffff8c59a240
RDX: 1ffffffff18b343b RSI: 0000000000000001 RDI: ffffffff8c59a1e8
RBP: ffffffff8c59a1d8 R08: ffffffff8c59a250 R09: 0000000000000003
R10: fffff5200002af9f R11: 0000000000000000 R12: 0000000000000246
R13: ffff8880b9b3c000 R14: ffffffff8c59a180 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005594048dd680 CR3: 000000002138f000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 rcu_gp_kthread+0xb8/0x360 kernel/rcu/tree.c:1849
 kthread+0x2e8/0x3a0 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>