INFO: task syz-executor:14630 blocked for more than 143 seconds.
      Tainted: G             L      syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:21592 pid:14630 tgid:14630 ppid:1      task_flags:0x400140 flags:0x00080002
Call Trace:
 <TASK>
 __schedule+0x14ef/0x4fb0
 schedule+0x164/0x360
 io_schedule+0x7f/0xd0
 folio_wait_bit_common+0x6d8/0xbc0
 __filemap_get_folio_mpol+0x13e/0xb00
 truncate_inode_pages_range+0x48b/0xe30
 evict+0x631/0xb10
 evict_inodes+0x75a/0x7f0
 generic_shutdown_super+0x9a/0x2c0
 kill_block_super+0x44/0x90
 deactivate_locked_super+0xbc/0x130
 cleanup_mnt+0x437/0x4d0
 task_work_run+0x1d9/0x270
 exit_to_user_mode_loop+0xed/0x480
 do_syscall_64+0x2b7/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f902579bf17
RSP: 002b:00007ffe6e5165d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f902580471f RCX: 00007f902579bf17
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe6e516690
RBP: 00007ffe6e516690 R08: 00007ffe6e517690 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe6e517720
R13: 00007f902580471f R14: 000000000028f51a R15: 00007ffe6e517760
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/35:
 #0: ffffffff8e35a360 (rcu_read_lock){....}-{1:3}, at: debug_show_all_locks+0x2e/0x180
2 locks held by getty/5662:
 #0: ffff88816a2c40a0 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x25/0x70
 #1: ffffc9000356b2f0 (&ldata->atomic_read_lock){+.+.}-{4:4}, at: n_tty_read+0x45c/0x13c0
4 locks held by kworker/0:7/6433:
1 lock held by syz-executor/14630:
 #0: ffff8881752180e0 (&type->s_umount_key#86){++++}-{4:4}, at: deactivate_super+0xa9/0xe0
1 lock held by syz.2.26093/18117:
 #0: ffff88819c778420 (sb_writers#3){.+.+}-{0:0}, at: direct_splice_actor+0x49/0x160
3 locks held by syz.5.26220/18747:
 #0: ffff888101b876f8 (&f->f_pos_lock){+.+.}-{4:4}, at: fdget_pos+0x246/0x320
 #1: ffff888173ea4420 (sb_writers#3){.+.+}-{0:0}, at: vfs_writev+0x2aa/0x990
 #2: ffff8881752180e0 (&type->s_umount_key#86){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
2 locks held by syz.6.26502/19894:
 #0: ffff888117e54420 (sb_writers#3){.+.+}-{0:0}, at: direct_splice_actor+0x49/0x160
 #1: ffff8881752180e0 (&type->s_umount_key#86){++++}-{4:4}, at: super_lock+0x2d6/0x3d0
1 lock held by syz-executor/20091:
5 locks held by syz-executor/20097:
 #0: ffff888198010ec0 (&hdev->req_lock){+.+.}-{4:4}, at: hci_unregister_dev+0x212/0x5a0
 #1: ffff8881980100c0 (&hdev->lock){+.+.}-{4:4}, at: hci_dev_close_sync+0x640/0x10e0
 #2: ffffffff8f936808 (hci_cb_list_lock){+.+.}-{4:4}, at: hci_conn_hash_flush+0xa1/0x260
 #3: ffff8880245f2b38 (&conn->lock#2){+.+.}-{4:4}, at: l2cap_conn_del+0x7b/0x5b0
 #4: ffffffff8e360c78 (rcu_state.exp_mutex){+.+.}-{4:4}, at: synchronize_rcu_expedited+0x38d/0x770
1 lock held by syz.8.26636/20364:

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

NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 35 Comm: khungtaskd Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0xe8/0x150
 nmi_cpu_backtrace+0x274/0x2d0
 nmi_trigger_cpumask_backtrace+0x17a/0x300
 sys_info+0x135/0x170
 watchdog+0xf90/0xfe0
 kthread+0x726/0x8b0
 ret_from_fork+0x51b/0xa40
 ret_from_fork_asm+0x1a/0x30
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 20091 Comm: syz-executor Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:kasan_check_range+0x75/0x2c0
Code: 49 c1 ef 03 49 ba 00 00 00 00 00 fc ff df 4f 8d 1c 17 49 ff c8 4d 89 c1 49 c1 e9 03 48 bb 01 00 00 00 00 fc ff df 4d 8d 34 19 <4d> 89 f4 4d 29 dc 49 83 fc 10 7f 29 4d 85 e4 0f 84 3d 01 00 00 4c
RSP: 0018:ffffc90020f6f7e0 EFLAGS: 00000803
RAX: 0000000000000001 RBX: dffffc0000000001 RCX: ffffffff81ca6c28
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff8fcef870
RBP: 0000000000000000 R08: ffffffff8fcef877 R09: 1ffffffff1f9df0e
R10: dffffc0000000000 R11: fffffbfff1f9df0e R12: ffff8881b6b2f000
R13: ffff8881b6b2e000 R14: fffffbfff1f9df0f R15: 1ffffffff1f9df0e
FS:  0000555569d24500(0000) GS:ffff88818e324000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31122ff8 CR3: 0000000113554000 CR4: 00000000000006f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
 <TASK>
 trace_irq_disable+0x28/0x100
 _raw_spin_lock_irqsave+0x1a/0x60
 debug_check_no_obj_freed+0x145/0x550
 __free_frozen_pages+0x4d9/0xd10
 vfree+0x25a/0x400
 kcov_close+0x28/0x50
 __fput+0x44f/0xa70
 task_work_run+0x1d9/0x270
 do_exit+0x69b/0x2310
 do_group_exit+0x21b/0x2d0
 get_signal+0x1284/0x1330
 arch_do_signal_or_restart+0xbc/0x830
 exit_to_user_mode_loop+0x86/0x480
 do_syscall_64+0x2b7/0xf80
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff840355ed7
Code: Unable to access opcode bytes at 0x7ff840355ead.
RSP: 002b:00007fffc9fd5190 EFLAGS: 00000202 ORIG_RAX: 000000000000003d
RAX: fffffffffffffe00 RBX: 0000555569d24500 RCX: 00007ff840355ed7
RDX: 0000000040000000 RSI: 00007fffc9fd51ec RDI: ffffffffffffffff
RBP: 00007fffc9fd51ec R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000008
R13: 0000000000000003 R14: 00007fffc9fd5448 R15: 0000000000000000
 </TASK>
