INFO: task syz.0.460:6511 blocked for more than 430 seconds.
      Not tainted 6.12.0-rc1-syzkaller-00010-gc05ad457ce8c #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.460       state:D stack:0     pid:6511  tgid:6506  ppid:4351   flags:0x00000006
Call Trace:
[<ffffffff85fe3a74>] context_switch kernel/sched/core.c:5315 [inline]
[<ffffffff85fe3a74>] __schedule+0xd5a/0x3886 kernel/sched/core.c:6675
[<ffffffff85fe6664>] __schedule_loop kernel/sched/core.c:6752 [inline]
[<ffffffff85fe6664>] schedule+0xc4/0x324 kernel/sched/core.c:6767
[<ffffffff85fe693c>] io_schedule+0x78/0xd4 kernel/sched/core.c:7552
[<ffffffff806fac7c>] folio_wait_bit_common+0x398/0x944 mm/filemap.c:1309
[<ffffffff80705210>] __folio_lock mm/filemap.c:1647 [inline]
[<ffffffff80705210>] folio_lock include/linux/pagemap.h:1148 [inline]
[<ffffffff80705210>] folio_lock include/linux/pagemap.h:1144 [inline]
[<ffffffff80705210>] __filemap_get_folio+0x470/0x866 mm/filemap.c:1900
[<ffffffff807454d2>] truncate_inode_pages_range+0x344/0xd78 mm/truncate.c:351
[<ffffffff80745f28>] truncate_inode_pages+0x22/0x2e mm/truncate.c:423
[<ffffffff8126feca>] kill_bdev block/bdev.c:91 [inline]
[<ffffffff8126feca>] blkdev_flush_mapping+0xf8/0x28a block/bdev.c:671
[<ffffffff8127012a>] blkdev_put_whole+0xce/0xee block/bdev.c:678
[<ffffffff81273af4>] bdev_release+0x3fe/0x600 block/bdev.c:1103
[<ffffffff81274ad6>] blkdev_release+0x1a/0x26 block/fops.c:639
[<ffffffff80a2c758>] __fput+0x378/0x9e6 fs/file_table.c:431
[<ffffffff80a2ce6c>] ____fput+0x1c/0x26 fs/file_table.c:459
[<ffffffff8014fb7c>] task_work_run+0x16a/0x25e kernel/task_work.c:228
[<ffffffff8010be48>] get_signal+0x1aa/0x23b0 kernel/signal.c:2690
[<ffffffff8000bb06>] arch_do_signal_or_restart+0x8d6/0x1190 arch/riscv/kernel/signal.c:437
[<ffffffff85fdac04>] exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
[<ffffffff85fdac04>] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
[<ffffffff85fdac04>] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
[<ffffffff85fdac04>] syscall_exit_to_user_mode+0x2a6/0x31e kernel/entry/common.c:218
[<ffffffff85fd9b26>] do_trap_ecall_u+0x86/0x216 arch/riscv/kernel/traps.c:345
[<ffffffff85ffcac6>] _new_vmalloc_restore_context_a0+0xc2/0xce

Showing all locks held in the system:
1 lock held by khungtaskd/37:
 #0: ffffffff87fcc100 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x68/0x2d6 kernel/locking/lockdep.c:6716
1 lock held by syslogd/2995:
2 locks held by getty/3151:
 #0: ff6000001bc810a0 (&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/3174:
2 locks held by syz-executor/3176:
2 locks held by kworker/1:4/3875:
1 lock held by syz.0.460/6511:
 #0: ff60000019b3c4c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_release+0x12c/0x600 block/bdev.c:1087
1 lock held by syz.0.507/7000:
 #0: ff60000019b3c4c8 (&disk->open_mutex){+.+.}-{3:3}, at: bdev_open+0x672/0xfa8 block/bdev.c:904
1 lock held by syz-executor/7027:

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

NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 37 Comm: khungtaskd Not tainted 6.12.0-rc1-syzkaller-00010-gc05ad457ce8c #0
Hardware name: riscv-virtio,qemu (DT)
Call Trace:
[<ffffffff80010a14>] dump_backtrace+0x2e/0x3c arch/riscv/kernel/stacktrace.c:130
[<ffffffff85f7c3cc>] show_stack+0x34/0x40 arch/riscv/kernel/stacktrace.c:136
[<ffffffff85fd797a>] __dump_stack lib/dump_stack.c:94 [inline]
[<ffffffff85fd797a>] dump_stack_lvl+0x122/0x196 lib/dump_stack.c:120
[<ffffffff85fd7a0a>] dump_stack+0x1c/0x24 lib/dump_stack.c:129
[<ffffffff85f3faae>] nmi_cpu_backtrace+0x39c/0x39e lib/nmi_backtrace.c:113
[<ffffffff85f3fd66>] nmi_trigger_cpumask_backtrace+0x2b6/0x456 lib/nmi_backtrace.c:62
[<ffffffff80019974>] arch_trigger_cpumask_backtrace+0x2c/0x3c arch/riscv/kernel/smp.c:347
[<ffffffff80432c3c>] trigger_all_cpu_backtrace include/linux/nmi.h:162 [inline]
[<ffffffff80432c3c>] check_hung_uninterruptible_tasks kernel/hung_task.c:223 [inline]
[<ffffffff80432c3c>] watchdog+0xcfa/0x1178 kernel/hung_task.c:379
[<ffffffff80154e14>] kthread+0x28c/0x3a6 kernel/kthread.c:389
[<ffffffff85ffcbde>] 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: 7027 Comm: syz-executor Not tainted 6.12.0-rc1-syzkaller-00010-gc05ad457ce8c #0
Hardware name: riscv-virtio,qemu (DT)
epc : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
epc : _raw_spin_unlock_irqrestore+0x36/0xd6 kernel/locking/spinlock.c:194
 ra : __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
 ra : _raw_spin_unlock_irqrestore+0x86/0xd6 kernel/locking/spinlock.c:194
epc : ffffffff85ffb7aa ra : ffffffff85ffb7fa sp : ff2000000c267230
 gp : ffffffff897bea80 tp : ff6000001aaa3480 t0 : ff6000001aaa3fa0
 t1 : ffebffff022000a8 t2 : 000000000000001b s0 : ff2000000c267250
 s1 : 0000000000000002 a0 : 0000000000000001 a1 : ffffffff8643e620
 a2 : 0000000000000006 a3 : 0000000000000002 a4 : 0000000000000001
 a5 : 0000000000000000 a6 : ff6000001aaa3fc0 a7 : 1fec0000035547f8
 s2 : ff60000011000540 s3 : ff1c00000063b650 s4 : ff2000000c267328
 s5 : ff600000110018c0 s6 : ff60000011000588 s7 : 0000000000000dc0
 s8 : ff1c0000006e3400 s9 : ffffffff897f7f20 s10: 0000000000000005
 s11: ff1c0000006e3400 t3 : 1fec0000035547f3 t4 : ffebffff022000a8
 t5 : ffebffff022000a9 t6 : 1fec000003554802
status: 0000000200000120 badaddr: 0000000000000000 cause: 8000000000000001
[<ffffffff85ffb7aa>] arch_local_irq_restore arch/riscv/include/asm/irqflags.h:51 [inline]
[<ffffffff85ffb7aa>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline]
[<ffffffff85ffb7aa>] _raw_spin_unlock_irqrestore+0x36/0xd6 kernel/locking/spinlock.c:194
[<ffffffff808d8cea>] spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
[<ffffffff808d8cea>] get_partial_node.part.0+0x170/0x2aa mm/slub.c:2861
[<ffffffff808d5ef2>] get_partial_node mm/slub.c:2824 [inline]
[<ffffffff808d5ef2>] get_partial mm/slub.c:2941 [inline]
[<ffffffff808d5ef2>] ___slab_alloc+0x682/0x114c mm/slub.c:3799
[<ffffffff808d6a1c>] __slab_alloc.constprop.0+0x60/0xb2 mm/slub.c:3909
[<ffffffff808d966a>] __slab_alloc_node mm/slub.c:3962 [inline]
[<ffffffff808d966a>] slab_alloc_node mm/slub.c:4123 [inline]
[<ffffffff808d966a>] __kmalloc_cache_node_noprof+0xc8/0x35e mm/slub.c:4304
[<ffffffff8088f63e>] kmalloc_node_noprof include/linux/slab.h:901 [inline]
[<ffffffff8088f63e>] __get_vm_area_node+0x112/0x41e mm/vmalloc.c:3106
[<ffffffff8089a940>] __vmalloc_node_range_noprof+0x240/0x1450 mm/vmalloc.c:3788
[<ffffffff8089c20c>] __vmalloc_node_noprof mm/vmalloc.c:3893 [inline]
[<ffffffff8089c20c>] vzalloc_noprof+0xf8/0x126 mm/vmalloc.c:3966
[<ffffffff855d2b30>] alloc_counters net/ipv4/netfilter/ip_tables.c:799 [inline]
[<ffffffff855d2b30>] copy_entries_to_user net/ipv4/netfilter/ip_tables.c:821 [inline]
[<ffffffff855d2b30>] get_entries net/ipv4/netfilter/ip_tables.c:1022 [inline]
[<ffffffff855d2b30>] do_ipt_get_ctl+0x598/0x8fa net/ipv4/netfilter/ip_tables.c:1668
[<ffffffff8511aafa>] nf_getsockopt+0x6e/0xd2 net/netfilter/nf_sockopt.c:116
[<ffffffff8535da94>] ip_getsockopt+0x1e6/0x232 net/ipv4/ip_sockglue.c:1777
[<ffffffff853a1ffe>] tcp_getsockopt+0x84/0xd6 net/ipv4/tcp.c:4670
[<ffffffff84c68c46>] sock_common_getsockopt+0x86/0xb8 net/core/sock.c:3776
[<ffffffff84c5d05c>] do_sock_getsockopt+0x37a/0x5ea net/socket.c:2391
[<ffffffff84c65fd8>] __sys_getsockopt+0x100/0x1b6 net/socket.c:2420
[<ffffffff84c66134>] __do_sys_getsockopt net/socket.c:2430 [inline]
[<ffffffff84c66134>] __se_sys_getsockopt net/socket.c:2427 [inline]
[<ffffffff84c66134>] __riscv_sys_getsockopt+0xa6/0x114 net/socket.c:2427
[<ffffffff8000f2d4>] syscall_handler+0x94/0x118 arch/riscv/include/asm/syscall.h:90
[<ffffffff85fd9c4a>] do_trap_ecall_u+0x1aa/0x216 arch/riscv/kernel/traps.c:331
[<ffffffff85ffcac6>] _new_vmalloc_restore_context_a0+0xc2/0xce