INFO: task syz.0.2316:7321 blocked for more than 122 seconds.
      Not tainted 6.12.30-syzkaller-gd893caf112c8 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.0.2316      state:D stack:0     pid:7321  tgid:7320  ppid:7292   flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5947 [inline]
 __schedule+0x132b/0x1e00 kernel/sched/core.c:7775
 __schedule_loop kernel/sched/core.c:7856 [inline]
 schedule+0xc6/0x240 kernel/sched/core.c:7871
 request_wait_answer fs/fuse/dev.c:476 [inline]
 __fuse_request_send fs/fuse/dev.c:491 [inline]
 __fuse_simple_request+0xdb1/0x1980 fs/fuse/dev.c:586
 fuse_simple_request fs/fuse/fuse_i.h:1248 [inline]
 fuse_flush+0x909/0x1d50 fs/fuse/file.c:582
 filp_flush fs/open.c:1550 [inline]
 filp_close+0xc0/0x160 fs/open.c:1563
 __range_close fs/file.c:712 [inline]
 __close_range+0x50e/0x6c0 fs/file.c:769
 __do_sys_close_range fs/open.c:1616 [inline]
 __se_sys_close_range fs/open.c:1613 [inline]
 __x64_sys_close_range+0x7e/0x90 fs/open.c:1613
 x64_sys_call+0x1686/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:437
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x58/0xf0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f51f1f8e929
RSP: 002b:00007f51f05f7038 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: ffffffffffffffda RBX: 00007f51f21b5fa0 RCX: 00007f51f1f8e929
RDX: 0000000000000000 RSI: ffffffffffffffff RDI: 0000000000000005
RBP: 00007f51f2010b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f51f21b5fa0 R15: 00007fff50e47e58
 </TASK>
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 37 Comm: khungtaskd Not tainted 6.12.30-syzkaller-gd893caf112c8 #0 64e33962539d0ce7a45dea9f0941eea22919d800
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Call Trace:
 <TASK>
 __dump_stack+0x21/0x30 lib/dump_stack.c:94
 dump_stack_lvl+0x10c/0x190 lib/dump_stack.c:120
 dump_stack+0x19/0x20 lib/dump_stack.c:129
 nmi_cpu_backtrace+0x2bf/0x2d0 lib/nmi_backtrace.c:113
 nmi_trigger_cpumask_backtrace+0x142/0x2c0 lib/nmi_backtrace.c:62
 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:41
 trigger_all_cpu_backtrace include/linux/nmi.h:158 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:229 [inline]
 watchdog+0xd8f/0xed0 kernel/hung_task.c:385
 kthread+0x2c7/0x370 kernel/kthread.c:389
 ret_from_fork+0x64/0xa0 arch/x86/kernel/process.c:153
 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: 15219 Comm: syz.4.4943 Not tainted 6.12.30-syzkaller-gd893caf112c8 #0 64e33962539d0ce7a45dea9f0941eea22919d800
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:__kasan_check_write+0x19/0x20 mm/kasan/shadow.c:37
Code: 00 b8 37 bf 3d 99 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 48 89 e5 89 f6 48 8b 4d 08 ba 01 00 00 00 e8 78 e4 ff ff 5d <e9> 42 59 ac 03 cc 90 b8 05 81 95 fc 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90002b975f8 EFLAGS: 00000056
RAX: f3f3f304f1f1f101 RBX: ffff888122a6a550 RCX: ffffffff8587bf30
RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff888122a6a550
RBP: ffffc90002b97698 R08: ffff888122a6a553 R09: 1ffff1102454d4aa
R10: dffffc0000000000 R11: ffffed102454d4ab R12: 1ffff92000572ec0
R13: ffff888122a6a3c0 R14: ffffc90002b97620 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056239ba84b98 CR3: 000000011ff32000 CR4: 00000000003526b0
Call Trace:
 <TASK>
 spin_lock_irq include/linux/spinlock.h:376 [inline]
 clear_inode+0x32/0x1a0 fs/inode.c:671
 pidfs_evict_inode+0x45/0x60 fs/pidfs.c:324
 evict+0x4d3/0xa90 fs/inode.c:730
 iput_final fs/inode.c:1889 [inline]
 iput+0x639/0x8d0 fs/inode.c:1915
 dentry_unlink_inode+0x373/0x420 fs/dcache.c:412
 __dentry_kill+0x1b4/0x5f0 fs/dcache.c:615
 dput+0x3f2/0x510 fs/dcache.c:857
 __fput+0x596/0xa00 fs/file_table.c:439
 ____fput+0x20/0x30 fs/file_table.c:459
 task_work_run+0x1e3/0x250 kernel/task_work.c:240
 exit_task_work include/linux/task_work.h:43 [inline]
 do_exit+0x9b4/0x2630 kernel/exit.c:944
 do_group_exit+0x22a/0x300 kernel/exit.c:1094
 get_signal+0x139d/0x14f0 kernel/signal.c:2934
 arch_do_signal_or_restart+0x96/0x720 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [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+0x58/0xb0 kernel/entry/common.c:218
 do_syscall_64+0x64/0xf0 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7fb4f398e929
Code: Unable to access opcode bytes at 0x7fb4f398e8ff.
RSP: 002b:00007fb4f48230e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fb4f3bb6088 RCX: 00007fb4f398e929
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fb4f3bb6088
RBP: 00007fb4f3bb6080 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb4f3bb608c
R13: 0000000000000000 R14: 00007ffc1c37eba0 R15: 00007ffc1c37ec88
 </TASK>