INFO: task syz.1.725:14142 blocked for more than 430 seconds.
      Not tainted 6.12.0-rc6-syzkaller-g57f7c7dc78cd #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.725       state:D stack:0     pid:14142 tgid:14140 ppid:3183   flags:0x00000006
Call Trace:
[<ffffffff85fe99a2>] context_switch kernel/sched/core.c:5328 [inline]
[<ffffffff85fe99a2>] __schedule+0xd58/0x3848 kernel/sched/core.c:6690
[<ffffffff85fec556>] __schedule_loop kernel/sched/core.c:6767 [inline]
[<ffffffff85fec556>] schedule+0xc4/0x324 kernel/sched/core.c:6782
[<ffffffff85fff302>] schedule_timeout+0x1e2/0x296 kernel/time/timer.c:2591
[<ffffffff85fedf32>] do_wait_for_common kernel/sched/completion.c:95 [inline]
[<ffffffff85fedf32>] __wait_for_common+0x1ca/0x4b6 kernel/sched/completion.c:116
[<ffffffff85fee238>] wait_for_common kernel/sched/completion.c:127 [inline]
[<ffffffff85fee238>] wait_for_completion+0x1a/0x22 kernel/sched/completion.c:148
[<ffffffff8422979c>] disable_device+0x1b2/0x2ba drivers/infiniband/core/device.c:1295
[<ffffffff84229b32>] __ib_unregister_device+0x28e/0x402 drivers/infiniband/core/device.c:1518
[<ffffffff84229d72>] ib_unregister_device_and_put+0x56/0x82 drivers/infiniband/core/device.c:1583
[<ffffffff84280434>] nldev_dellink+0x212/0x314 drivers/infiniband/core/nldev.c:1825
[<ffffffff84238ecc>] rdma_nl_rcv_msg+0x352/0x680 drivers/infiniband/core/netlink.c:195
[<ffffffff84239522>] rdma_nl_rcv_skb.constprop.0.isra.0+0x328/0x424 drivers/infiniband/core/netlink.c:239
[<ffffffff84239638>] rdma_nl_rcv+0x1a/0x24 drivers/infiniband/core/netlink.c:259
[<ffffffff850b51ac>] netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
[<ffffffff850b51ac>] netlink_unicast+0x4f0/0x82c net/netlink/af_netlink.c:1357
[<ffffffff850b5d4c>] netlink_sendmsg+0x864/0xdc6 net/netlink/af_netlink.c:1901
[<ffffffff84c623be>] sock_sendmsg_nosec net/socket.c:729 [inline]
[<ffffffff84c623be>] __sock_sendmsg+0xcc/0x160 net/socket.c:744
[<ffffffff84c62fca>] ____sys_sendmsg+0x5ce/0x79e net/socket.c:2607
[<ffffffff84c6a712>] ___sys_sendmsg+0x144/0x1e6 net/socket.c:2661
[<ffffffff84c6b1ea>] __sys_sendmsg+0x130/0x1f0 net/socket.c:2690
[<ffffffff84c6b31a>] __do_sys_sendmsg net/socket.c:2699 [inline]
[<ffffffff84c6b31a>] __se_sys_sendmsg net/socket.c:2697 [inline]
[<ffffffff84c6b31a>] __riscv_sys_sendmsg+0x70/0xa2 net/socket.c:2697
[<ffffffff8000f2cc>] syscall_handler+0x94/0x118 arch/riscv/include/asm/syscall.h:90
[<ffffffff85fdfb66>] do_trap_ecall_u+0x1aa/0x216 arch/riscv/kernel/traps.c:331
[<ffffffff860029b6>] _new_vmalloc_restore_context_a0+0xc2/0xce

Showing all locks held in the system:
1 lock held by khungtaskd/37:
 #0: ffffffff881cc080 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x68/0x2d6 kernel/locking/lockdep.c:6716
1 lock held by klogd/2972:
2 locks held by getty/3135:
 #0: ff600000185d10a0 (&tty->ldisc_sem){++++}-{0:0}, at: ldsem_down_read+0x3a/0x46 drivers/tty/tty_ldsem.c:340
 #1: ff2000000008b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xd7c/0x129a drivers/tty/n_tty.c:2211
3 locks held by sshd/3170:
2 locks held by syz-executor/3172:
2 locks held by kworker/u9:22/12021:
 #0: ff60000011071148 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x848/0x1dae kernel/workqueue.c:3204
 #1: ff20000003707c90 ((work_completion)(&sub_info->work)){+.+.}-{0:0}, at: process_one_work+0x870/0x1dae kernel/workqueue.c:3204
4 locks held by kworker/u10:1/13096:
3 locks held by kworker/u9:1/13620:
3 locks held by kworker/u9:2/13622:
4 locks held by kworker/u10:17/14096:
2 locks held by syz.1.725/14142:
 #0: ffffffff90d8ecd8 (&rdma_nl_types[idx].sem){.+.+}-{3:3}, at: rdma_nl_rcv_msg+0x172/0x680 drivers/infiniband/core/netlink.c:164
 #1: ff6000002dab06b0 (&device->unregistration_lock){+.+.}-{3:3}, at: __ib_unregister_device+0x200/0x402 drivers/infiniband/core/device.c:1514
4 locks held by kworker/u8:1/14374:
 #0: ff60000011e81948 ((wq_completion)netns){+.+.}-{0:0}, at: process_one_work+0x848/0x1dae kernel/workqueue.c:3204
 #1: ff20000005e07c90 (net_cleanup_work){+.+.}-{0:0}, at: process_one_work+0x870/0x1dae kernel/workqueue.c:3204
 #2: ffffffff89597c70 (pernet_ops_rwsem){++++}-{3:3}, at: cleanup_net+0xda/0x984 net/core/net_namespace.c:580
 #3: ff6000002dab06b0 (&device->unregistration_lock){+.+.}-{3:3}, at: rdma_dev_change_netns+0x3c/0x348 drivers/infiniband/core/device.c:1666
2 locks held by kworker/1:3/15035:
1 lock held by syz.3.773/15037:
2 locks held by modprobe/15038:

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

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 37 Comm: khungtaskd Not tainted 6.12.0-rc6-syzkaller-g57f7c7dc78cd #0
Hardware name: riscv-virtio,qemu (DT)
Call Trace:
[<ffffffff80010a0c>] dump_backtrace+0x2e/0x3c arch/riscv/kernel/stacktrace.c:130
[<ffffffff85f822a0>] show_stack+0x34/0x40 arch/riscv/kernel/stacktrace.c:136
[<ffffffff85fdd896>] __dump_stack lib/dump_stack.c:94 [inline]
[<ffffffff85fdd896>] dump_stack_lvl+0x122/0x196 lib/dump_stack.c:120
[<ffffffff85fdd926>] dump_stack+0x1c/0x24 lib/dump_stack.c:129
[<ffffffff85f45986>] nmi_cpu_backtrace+0x39c/0x39e lib/nmi_backtrace.c:113
[<ffffffff85f45c3e>] nmi_trigger_cpumask_backtrace+0x2b6/0x456 lib/nmi_backtrace.c:62
[<ffffffff8001996c>] arch_trigger_cpumask_backtrace+0x2c/0x3c arch/riscv/kernel/smp.c:347
[<ffffffff80432008>] trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
[<ffffffff80432008>] check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
[<ffffffff80432008>] watchdog+0xcfa/0x1178 kernel/hung_task.c:379
[<ffffffff80154924>] kthread+0x28c/0x3a6 kernel/kthread.c:389
[<ffffffff86002ace>] ret_from_fork+0xe/0x18 arch/riscv/kernel/entry.S:326
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 15037 Comm: syz.3.773 Not tainted 6.12.0-rc6-syzkaller-g57f7c7dc78cd #0
Hardware name: riscv-virtio,qemu (DT)
epc : lock_acquire.part.0+0x36c/0x81c kernel/locking/lockdep.c:5790
 ra : lockdep_recursion_finish kernel/locking/lockdep.c:467 [inline]
 ra : lock_acquire.part.0+0x2d6/0x81c kernel/locking/lockdep.c:5827
epc : ffffffff802497ac ra : ffffffff80249716 sp : ff20000001cd7570
 gp : ffffffff899c0180 tp : ff60000011b74ec0 t0 : ff60000011b759e0
 t1 : ff60000011b75aa8 t2 : 0000000000000006 s0 : ff20000001cd76d0
 s1 : ff6000005cde0708 a0 : ffffffff90d62aa8 a1 : ffffffff8663e8a0
 a2 : 0000000000000012 a3 : ffffffff89abdd80 a4 : 0000000000000000
 a5 : 0000000000000000 a6 : ffffffff8d1b74e0 a7 : 000000005a830690
 s2 : ffffffff90d62aa8 s3 : 0000000000000000 s4 : ffffffff881cc080
 s5 : 1fe400000039aeb8 s6 : 0000000000000000 s7 : ffffffff809e0f7a
 s8 : 0000000000000000 s9 : ffffffff86458708 s10: ffffffff90d62aa0
 s11: 0000000000000002 t3 : 1fec00000236eb3b t4 : 0000000000000001
 t5 : 2f4402e19411a353 t6 : 1fec00000236eb59
status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000001
[<ffffffff802497ac>] arch_local_irq_restore arch/riscv/include/asm/irqflags.h:51 [inline]
[<ffffffff802497ac>] lock_acquire.part.0+0x36c/0x81c kernel/locking/lockdep.c:5828
[<ffffffff80249cd0>] lock_acquire+0x74/0x98 kernel/locking/lockdep.c:5798
[<ffffffff809e0fc8>] rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
[<ffffffff809e0fc8>] rcu_read_lock include/linux/rcupdate.h:849 [inline]
[<ffffffff809e0fc8>] page_ext_get+0x4e/0x468 mm/page_ext.c:525
[<ffffffff809e161a>] page_table_check_set.part.0+0x132/0x5d6 mm/page_table_check.c:114
[<ffffffff809e39c6>] page_table_check_set arch/riscv/include/asm/pgtable.h:369 [inline]
[<ffffffff809e39c6>] __page_table_check_ptes_set+0x6c0/0xdd6 mm/page_table_check.c:225
[<ffffffff8082334e>] page_table_check_ptes_set include/linux/page_table_check.h:74 [inline]
[<ffffffff8082334e>] set_ptes arch/riscv/include/asm/pgtable.h:565 [inline]
[<ffffffff8082334e>] set_pte_range+0x3f4/0x4a0 mm/memory.c:5042
[<ffffffff806fd9e4>] filemap_map_order0_folio mm/filemap.c:3623 [inline]
[<ffffffff806fd9e4>] filemap_map_pages+0x44e/0x137a mm/filemap.c:3677
[<ffffffff80828f72>] do_fault_around mm/memory.c:5255 [inline]
[<ffffffff80828f72>] do_read_fault mm/memory.c:5288 [inline]
[<ffffffff80828f72>] do_fault mm/memory.c:5431 [inline]
[<ffffffff80828f72>] do_pte_missing mm/memory.c:3965 [inline]
[<ffffffff80828f72>] handle_pte_fault mm/memory.c:5766 [inline]
[<ffffffff80828f72>] __handle_mm_fault+0x1b0c/0x43ea mm/memory.c:5909
[<ffffffff8082bcdc>] handle_mm_fault+0x48c/0x886 mm/memory.c:6077
[<ffffffff80023cb6>] handle_page_fault+0x2ba/0x1588 arch/riscv/mm/fault.c:302
[<ffffffff85fdfbf2>] do_page_fault+0x20/0x56 arch/riscv/kernel/traps.c:362
[<ffffffff860029b6>] _new_vmalloc_restore_context_a0+0xc2/0xce