INFO: task syz.4.2562:21180 blocked for more than 143 seconds.
      Not tainted 6.12.0-rc2-next-20241008-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.2562      state:D stack:24688 pid:21180 tgid:21180 ppid:19678  flags:0x00004004
Call Trace:
 <TASK>
 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
 chaoskey_release+0x169/0x2f0 drivers/usb/misc/chaoskey.c:322
 __fput+0x23f/0x880 fs/file_table.c:431
 task_work_run+0x24f/0x310 kernel/task_work.c:228
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop kernel/entry/common.c:114 [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+0x168/0x370 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f149e17dff9
RSP: 002b:00007ffffb8e5548 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: 0000000000000000 RBX: 000000000010f64a RCX: 00007f149e17dff9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f149e337a80 R08: 0000000000000001 R09: 00007ffffb8e583f
R10: 00007f149e000000 R11: 0000000000000246 R12: 000000000010fab9
R13: 00007ffffb8e5650 R14: 0000000000000032 R15: ffffffffffffffff
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 30 Comm: khungtaskd Not tainted 6.12.0-rc2-next-20241008-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <TASK>
 __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
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 25768 Comm: syz.1.3526 Not tainted 6.12.0-rc2-next-20241008-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:get_current arch/x86/include/asm/current.h:49 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:245 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp8+0x8/0x90 kernel/kcov.c:321
Code: 44 0a 20 c3 cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 4c 8b 04 24 <65> 48 8b 0c 25 40 d8 03 00 65 8b 05 00 df 6e 7e 25 00 01 ff 00 74
RSP: 0018:ffffc900090179b0 EFLAGS: 00000202
RAX: ffffffff8bbdf9d3 RBX: 0000000000000002 RCX: 0000000000040000
RDX: ffffc90019e19000 RSI: 0000000000000002 RDI: 0000000000000002
RBP: ffffc90009017ae0 R08: ffffffff8bbdfa51 R09: 1ffffffff203a7e5
R10: dffffc0000000000 R11: fffffbfff203a7e6 R12: dffffc0000000000
R13: ffff88807e75001e R14: ffffc90009017b18 R15: ffffc90009017af8
FS:  00007f8cd5f366c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020f4b000 CR3: 0000000028a42000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 xa_is_internal include/linux/xarray.h:175 [inline]
 xa_is_node include/linux/xarray.h:1264 [inline]
 mas_start+0x271/0x5a0 lib/maple_tree.c:1362
 mtree_load+0x2f9/0x9c0 lib/maple_tree.c:6317
 vma_lookup include/linux/mm.h:3454 [inline]
 do_pages_stat_array mm/migrate.c:2408 [inline]
 do_pages_stat mm/migrate.c:2476 [inline]
 kernel_move_pages mm/migrate.c:2557 [inline]
 __do_sys_move_pages mm/migrate.c:2568 [inline]
 __se_sys_move_pages+0x1625/0x1cc0 mm/migrate.c:2563
 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: 0033:0x7f8cd517dff9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8cd5f36038 EFLAGS: 00000246 ORIG_RAX: 0000000000000117
RAX: ffffffffffffffda RBX: 00007f8cd5335f80 RCX: 00007f8cd517dff9
RDX: 0000000020000000 RSI: 20000000000001ab RDI: 0000000000000000
RBP: 00007f8cd51f0296 R08: 0000000020000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f8cd5335f80 R15: 00007fff653f7948
 </TASK>