------------[ cut here ]------------
WARNING: CPU: 3 PID: 5217 at arch/x86/mm/tlb.c:515 switch_mm_irqs_off+0x890/0xbc0 arch/x86/mm/tlb.c:515
Modules linked in:
CPU: 3 PID: 5217 Comm: syz-executor.1 Not tainted 6.9.0-rc2-syzkaller-00040-gb1e6ec0a0fd0 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
RIP: 0010:switch_mm_irqs_off+0x890/0xbc0 arch/x86/mm/tlb.c:515
Code: ff 44 8d 6b 02 48 63 d3 49 8d 8e 18 06 00 00 4d 63 ed 49 c1 e5 04 4d 8d 8d 80 d8 03 00 49 81 c5 88 d8 03 00 e9 75 fd ff ff 90 <0f> 0b 90 e9 e3 f7 ff ff 90 0f 0b 90 e8 df f5 ff ff e9 20 f8 ff ff
RSP: 0018:ffffc90003297870 EFLAGS: 00010202
RAX: 0000000000000296 RBX: ffff88802ba70000 RCX: ffff88801e461300
RDX: 1ffff11003c8c33a RSI: ffffffff8b8f5260 RDI: ffffffff8b8f52a0
RBP: ffff88802d7a9c80 R08: 0000000000000000 R09: ffffed1003c8c279
R10: ffff88801e4613cb R11: 0000000000000000 R12: ffff88806b33f500
R13: ffff8880243d2440 R14: ffff88801e461300 R15: ffff88806b33ea40
FS:  000055558590d480(0000) GS:ffff88806b300000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b31528000 CR3: 0000000045578000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5393 [inline]
 __schedule+0xd2b/0x5d00 kernel/sched/core.c:6746
 __schedule_loop kernel/sched/core.c:6823 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6838
 synchronize_rcu_expedited+0x610/0x7a0 kernel/rcu/tree_exp.h:954
 bdi_remove_from_list mm/backing-dev.c:1035 [inline]
 bdi_unregister+0x17b/0x640 mm/backing-dev.c:1043
 generic_shutdown_super+0x29c/0x3d0 fs/super.c:681
 kill_anon_super+0x3a/0x60 fs/super.c:1225
 fuse_kill_sb_anon+0x1e3/0x2f0 fs/fuse/inode.c:1962
 deactivate_locked_super+0xbe/0x1a0 fs/super.c:472
 deactivate_super+0xde/0x100 fs/super.c:505
 cleanup_mnt+0x222/0x450 fs/namespace.c:1267
 task_work_run+0x14e/0x250 kernel/task_work.c:180
 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+0x275/0x2a0 kernel/entry/common.c:218
 do_syscall_64+0xe2/0x260 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x72/0x7a
RIP: 0033:0x7f162007f117
Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffd1e14d9c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f162007f117
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffd1e14da80
RBP: 00007ffd1e14da80 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffd1e14eb40
R13: 00007f16200c93b9 R14: 000000000000e529 R15: 0000000000000009
 </TASK>