INFO: task syz-executor:13302 blocked for more than 143 seconds.
      Tainted: G        W           syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:18856 [  831.011877][   T38] task:syz-executor    state:D stack:18856 pid:13302 tgid:13302 ppid:1      task_flags:0x400140 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5357 [inline]
 __schedule+0x16f3/0x4c20 kernel/sched/core.c:6961
 __schedule_loop kernel/sched/core.c:7043 [inline]
 schedule+0x165/0x360 kernel/sched/core.c:7058
 io_schedule+0x81/0xe0 kernel/sched/core.c:7903
 folio_wait_bit_common+0x6b5/0xb90 mm/filemap.c:1317
 __folio_lock mm/filemap.c:1675 [inline]
 folio_lock include/linux/pagemap.h:1133 [inline]
 __filemap_get_folio+0x167/0xa40 mm/filemap.c:1929
 truncate_inode_pages_range+0x3cf/0xb90 mm/truncate.c:388
 evict+0x517/0x9c0 fs/inode.c:812
 dispose_list fs/inode.c:852 [inline]
 evict_inodes+0x64c/0x6d0 fs/inode.c:906
 generic_shutdown_super+0x9a/0x2c0 fs/super.c:628
 kill_block_super+0x44/0x90 fs/super.c:1766
 deactivate_locked_super+0xb9/0x130 fs/super.c:474
 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1375
 task_work_run+0x1d4/0x260 kernel/task_work.c:227
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 exit_to_user_mode_loop+0xec/0x110 kernel/entry/common.c:43
 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
 syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
 do_syscall_64+0x2bd/0x3b0 arch/x86/entry/syscall_64.c:100
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe771bdff17
RSP: 002b:00007fff7f6e4ee8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fe771c61c05 RCX: 00007fe771bdff17
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff7f6e4fa0
RBP: 00007fff7f6e4fa0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff7f6e6030
R13: 00007fe771c61c05 R14: 00000000000a673a R15: 00007fff7f6e6070
 </TASK>
INFO: lockdep is turned off.
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 38 Comm: khungtaskd Tainted: G        W           syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 nmi_cpu_backtrace+0x39e/0x3d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x17a/0x300 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:328 [inline]
 watchdog+0xf93/0xfe0 kernel/hung_task.c:491
 kthread+0x70e/0x8a0 kernel/kthread.c:463
 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 17905 Comm: syz.4.1541 Tainted: G        W           syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:pmdp_get include/linux/pgtable.h:347 [inline]
RIP: 0010:pmdp_get_lockless include/linux/pgtable.h:635 [inline]
RIP: 0010:__handle_mm_fault mm/memory.c:6170 [inline]
RIP: 0010:handle_mm_fault+0x79f/0x3400 mm/memory.c:6364
Code: 8b 5c 24 50 c1 eb 12 81 e3 f8 0f 00 00 4c 01 f3 48 89 9c 24 30 01 00 00 0f 84 fb 01 00 00 49 89 de 49 c1 ee 03 43 80 3c 26 00 <74> 08 48 89 df e8 77 b2 16 00 48 8b 03 48 89 44 24 60 48 89 84 24
RSP: 0000:ffffc9000bc07c60 EFLAGS: 00000246
RAX: 1ffffffff1a48c8d RBX: ffff8880391f9248 RCX: ffff8880254f5940
RDX: 0000000000000002 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc9000bc07e58 R08: 0000000000000000 R09: 0000000000000000
R10: ffffc9000bc07d8c R11: fffff52001780fba R12: dffffc0000000000
R13: ffff8880908767f8 R14: 1ffff1100723f249 R15: 1ffff1100b0b4732
FS:  00007fcc90efe6c0(0000) GS:ffff8881268c5000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcc89345000 CR3: 0000000090876000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 do_user_addr_fault+0xa81/0x1390 arch/x86/mm/fault.c:1336
 handle_page_fault arch/x86/mm/fault.c:1476 [inline]
 exc_page_fault+0x76/0xf0 arch/x86/mm/fault.c:1532
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7fcc92b60c46
Code: f0 72 6e 48 63 cd 48 01 c1 49 39 4f 08 72 4c 8d 4d ff 85 ed 74 33 66 0f 1f 44 00 00 48 39 f0 72 1b 4d 8b 07 49 89 c1 49 29 f1 <47> 0f b6 0c 08 45 84 c9 74 08 45 88 0c 00 49 8b 47 10 48 83 c0 01
RSP: 002b:00007fcc90efd4a0 EFLAGS: 00010206
RAX: 0000000000867001 RBX: 00007fcc90efd540 RCX: 000000000000004a
RDX: 0000000000000005 RSI: 0000000000000001 RDI: 00007fcc90efd5e0
RBP: 0000000000000102 R08: 00007fcc88ade000 R09: 0000000000867000
R10: 0000000000000000 R11: 00007fcc90efd550 R12: 0000000000000001
R13: 00007fcc92d3da20 R14: 0000000000000000 R15: 00007fcc90efd5e0
 </TASK>