INFO: task syz-executor:1919 blocked for more than 143 seconds.
      Not tainted 5.15.179-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor    state:D stack:20504 pid: 1919 ppid:     1 flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5029 [inline]
 __schedule+0x12c4/0x45b0 kernel/sched/core.c:6375
 schedule+0x11b/0x1f0 kernel/sched/core.c:6458
 io_schedule+0x88/0x100 kernel/sched/core.c:8483
 wait_on_page_bit_common+0xa13/0x1180 mm/filemap.c:1356
 lock_page include/linux/pagemap.h:625 [inline]
 truncate_inode_pages_range+0xc17/0x1290 mm/truncate.c:394
 evict+0x53c/0x930 fs/inode.c:649
 dispose_list fs/inode.c:680 [inline]
 evict_inodes+0x668/0x700 fs/inode.c:734
 generic_shutdown_super+0x94/0x310 fs/super.c:454
 kill_block_super+0x7a/0xe0 fs/super.c:1427
 deactivate_locked_super+0xa0/0x110 fs/super.c:335
 cleanup_mnt+0x44e/0x500 fs/namespace.c:1143
 task_work_run+0x129/0x1a0 kernel/task_work.c:188
 tracehook_notify_resume include/linux/tracehook.h:189 [inline]
 exit_to_user_mode_loop+0x106/0x130 kernel/entry/common.c:181
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x5d/0x240 kernel/entry/common.c:307
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f35a9e86497
RSP: 002b:00007ffe054f81f8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f35a9f0608c RCX: 00007f35a9e86497
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe054f82b0
RBP: 00007ffe054f82b0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffe054f9340
R13: 00007f35a9f0608c R14: 000000000014bf43 R15: 00007ffe054f9380
 </TASK>

Showing all locks held in the system:
1 lock held by khungtaskd/27:
 #0: ffffffff8cb1f4e0 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
2 locks held by getty/3929:
 #0: ffff88802c12f098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
 #1: ffffc90002cd62e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 drivers/tty/n_tty.c:2158
1 lock held by syz-executor/1919:
 #0: ffff88804ad8e0e0 (&type->s_umount_key#124){+.+.}-{3:3}, at: deactivate_super+0xa9/0xe0 fs/super.c:365
1 lock held by rm/25213:

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

NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.179-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
 watchdog+0xe72/0xeb0 kernel/hung_task.c:369
 kthread+0x3f6/0x4f0 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 25214 Comm: rm Not tainted 5.15.179-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:__flush_tlb_one_user arch/x86/include/asm/paravirt.h:81 [inline]
RIP: 0010:flush_tlb_one_user arch/x86/mm/tlb.c:1145 [inline]
RIP: 0010:flush_tlb_func+0x33f/0x590 arch/x86/mm/tlb.c:832
Code: f7 e8 d5 b5 90 00 4d 3b 26 0f 83 f9 00 00 00 49 c7 c7 90 29 99 8c 49 c1 ef 03 eb 09 4d 3b 26 0f 83 de 00 00 00 43 80 3c 2f 00 <74> 0c 48 c7 c7 90 29 99 8c e8 a3 b5 90 00 48 83 3d 1b 50 5f 0b 00
RSP: 0018:ffffc900049f7840 EFLAGS: 00000046
RAX: 1ffff110171e735a RBX: 000000000000000c RCX: 000000000000000c
RDX: 0000000000000000 RSI: ffffffff8af9fa60 RDI: 00007f4938517000
RBP: ffffc900049f7930 R08: dffffc0000000000 R09: ffffed1005740165
R10: 0000000000000000 R11: dffffc0000000001 R12: 00007f4938518000
R13: dffffc0000000000 R14: ffff8880b8f39ad0 R15: 1ffffffff1932532
FS:  00007f49382ec380(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f49383f4dc3 CR3: 0000000064dbb000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 flush_tlb_mm_range+0x464/0x5e0 arch/x86/mm/tlb.c:1019
 change_protection_range mm/mprotect.c:358 [inline]
 change_protection+0x1ba6/0x1cc0 mm/mprotect.c:375
 mprotect_fixup+0x543/0x7d0 mm/mprotect.c:497
 do_mprotect_pkey+0x75b/0xa50 mm/mprotect.c:636
 __do_sys_mprotect mm/mprotect.c:662 [inline]
 __se_sys_mprotect mm/mprotect.c:659 [inline]
 __x64_sys_mprotect+0x7c/0x90 mm/mprotect.c:659
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f493860abb7
Code: 00 00 00 b8 0b 00 00 00 0f 05 48 3d 01 f0 ff ff 73 01 c3 48 8d 0d b9 46 01 00 f7 d8 89 01 48 83 c8 ff c3 b8 0a 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8d 0d 99 46 01 00 f7 d8 89 01 48 83
RSP: 002b:00007ffc38b9e918 EFLAGS: 00000206 ORIG_RAX: 000000000000000a
RAX: ffffffffffffffda RBX: 00007f49385ed5c0 RCX: 00007f493860abb7
RDX: 0000000000000001 RSI: 0000000000004000 RDI: 00007f4938517000
RBP: 00007ffc38b9ea30 R08: 00007ffc38b90000 R09: 00007f493861eab0
R10: 00007f493837dab8 R11: 0000000000000206 R12: 00007f49385ed5c0
R13: 00007f4938612eda R14: 00007f493851abf8 R15: 00007f493851ab70
 </TASK>