INFO: task syz.6.7401:22638 blocked for more than 122 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.6.7401      state:D stack:0     pid:22638 tgid:22638 ppid:20814  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:584
 filp_flush fs/open.c:1550 [inline]
 filp_close+0xc0/0x160 fs/open.c:1563
 __range_close fs/file.c:710 [inline]
 __close_range+0x50e/0x6c0 fs/file.c:767
 __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: 0033:0x7f027d58efc9
RSP: 002b:00007fff0c84fef8 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: ffffffffffffffda RBX: 000000000006a482 RCX: 00007f027d58efc9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007f027d7e7da0 R08: 0000000000000001 R09: 000000120c8501ef
R10: 0000001b30d20000 R11: 0000000000000246 R12: 00007f027d7e609c
R13: 00007f027d7e6090 R14: ffffffffffffffff R15: 00007fff0c850010
 </TASK>
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 37 Comm: khungtaskd Not tainted syzkaller #0 0b5ffdee5fcd2f7749818d1ff954e9c21353764e
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
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+0x2ca/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: 25690 Comm: kworker/1:10 Not tainted syzkaller #0 0b5ffdee5fcd2f7749818d1ff954e9c21353764e
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Workqueue:  0x0 (wg-crypt-wg0)
RIP: 0010:get_running_cputimer include/linux/sched/cputime.h:79 [inline]
RIP: 0010:account_group_exec_runtime include/linux/sched/cputime.h:164 [inline]
RIP: 0010:update_se+0x192/0x3e0 kernel/sched/fair.c:1216
Code: f8 48 c1 e8 03 42 80 3c 30 00 74 08 4c 89 ff e8 04 7c 7f 00 49 8b 1f 4c 8d bb 58 01 00 00 4c 89 f8 48 c1 e8 03 42 0f b6 04 30 <84> c0 0f 85 e6 00 00 00 48 8b 45 d0 48 05 40 ff ff ff 48 89 45 c8
RSP: 0018:ffffc90003e47688 EFLAGS: 00000806
RAX: 0000000000000000 RBX: ffff88815aac9900 RCX: dffffc0000000000
RDX: 0000000000000009 RSI: ffff88812ffaa6c0 RDI: ffff88812ffaa718
RBP: ffffc90003e476d0 R08: 000000000000004a R09: 0000000000000004
R10: 0000000000000000 R11: ffffffff815e2880 R12: ffff88812ffaa600
R13: 0000000000005eca R14: dffffc0000000000 R15: ffff88815aac9a58
FS:  0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f460e1b3ad8 CR3: 00000001321f0000 CR4: 00000000003526b0
Call Trace:
 <TASK>
 update_curr+0xdc/0xaa0 kernel/sched/fair.c:1295
 dequeue_entity+0x8c/0x1750 kernel/sched/fair.c:5648
 dequeue_entities+0x1bd/0x12f0 kernel/sched/fair.c:7290
 dequeue_task_fair+0x2ae/0x690 kernel/sched/fair.c:7387
 dequeue_task+0x445/0x8f0 kernel/sched/core.c:2139
 block_task kernel/sched/core.c:2231 [inline]
 try_to_block_task kernel/sched/core.c:7190 [inline]
 __schedule+0x3ab/0x1df0 kernel/sched/core.c:7709
 __schedule_loop kernel/sched/core.c:7872 [inline]
 schedule+0xc6/0x240 kernel/sched/core.c:7887
 worker_thread+0xf6b/0x1250 kernel/workqueue.c:3415
 kthread+0x2ca/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>