INFO: task syz.2.7070:22039 blocked for more than 122 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.7070      state:D stack:0     pid:22039 tgid:22039 ppid:16843  flags:0x00004006
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5945 [inline]
 __schedule+0x1322/0x1df0 kernel/sched/core.c:7791
 __schedule_loop kernel/sched/core.c:7872 [inline]
 schedule+0xc6/0x240 kernel/sched/core.c:7887
 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: 0033:0x7f0b94d8eba9
RSP: 002b:00007ffd4d1e2378 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: ffffffffffffffda RBX: 00007f0b94fd7da0 RCX: 00007f0b94d8eba9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f0b94fd7da0 R08: 00000000000000c0 R09: 0000000b4d1e266f
R10: 00007f0b94fd7cb0 R11: 0000000000000246 R12: 000000000007ef2e
R13: 00007f0b94fd6090 R14: ffffffffffffffff R15: 00007ffd4d1e2490
 </TASK>
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 37 Comm: khungtaskd Not tainted syzkaller #0 99624267b8d9de82d7af71289de6516dc5649427
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
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:267 [inline]
 watchdog+0xd8f/0xed0 kernel/hung_task.c:423
 kthread+0x2c7/0x370 kernel/kthread.c:389
 ret_from_fork+0x67/0xa0 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: 36 Comm: kauditd Not tainted syzkaller #0 99624267b8d9de82d7af71289de6516dc5649427
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:serial8250_console_write+0xbc5/0x2130 drivers/tty/serial/8250/8250_port.c:3395
Code: 24 58 4c 8b 7c 24 40 48 8b 44 24 70 42 0f b6 04 28 84 c0 0f 85 49 13 00 00 48 8b 44 24 28 c6 00 00 48 85 db 0f 85 92 f8 ff ff <e8> f6 9a 6d fe 48 8b 44 24 18 42 0f b6 04 28 84 c0 0f 85 4d 11 00
RSP: 0018:ffffc9000025f6c0 EFLAGS: 00000046
RAX: ffffffff83184199 RBX: 0000000000000000 RCX: ffff88810367b900
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff889f1df8
RBP: ffffc9000025f848 R08: 0000000000000003 R09: 0000000000000004
R10: 0000000000000000 R11: ffffffff83188240 R12: ffffffff889f1de0
R13: dffffc0000000000 R14: 0000000000000000 R15: ffffffff889f2038
FS:  0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffded200fa8 CR3: 000000010c7d0000 CR4: 00000000003526b0
Call Trace:
 <TASK>
 univ8250_console_write+0x6f/0xb0 drivers/tty/serial/8250/8250_core.c:396
 console_emit_next_record kernel/printk/printk.c:3152 [inline]
 console_flush_all+0x5e3/0xaa0 kernel/printk/printk.c:3240
 __console_flush_and_unlock kernel/printk/printk.c:3299 [inline]
 console_unlock+0xe9/0x270 kernel/printk/printk.c:3339
 vprintk_emit+0x27c/0x640 kernel/printk/printk.c:2463
 vprintk_default+0x2a/0x40 kernel/printk/printk.c:2478
 vprintk+0x93/0xa0 kernel/printk/printk_safe.c:73
 _printk+0xd0/0x120 kernel/printk/printk.c:2488
 kauditd_printk_skb kernel/audit.c:546 [inline]
 kauditd_hold_skb+0x1cc/0x230 kernel/audit.c:581
 kauditd_send_queue+0x2c2/0x310 kernel/audit.c:766
 kauditd_thread+0x4f0/0x740 kernel/audit.c:890
 kthread+0x2c7/0x370 kernel/kthread.c:389
 ret_from_fork+0x67/0xa0 arch/x86/kernel/process.c:153
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>