INFO: task syz-executor.3:18510 blocked for more than 143 seconds.
      Not tainted 6.1.0-rc6-syzkaller-00012-g4312098baf37 #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3  state:D stack:23912 pid:18510 ppid:3676   flags:0x00004004
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5209 [inline]
 __schedule+0x8c9/0xd70 kernel/sched/core.c:6521
 schedule+0xcb/0x190 kernel/sched/core.c:6597
 request_wait_answer fs/fuse/dev.c:407 [inline]
 __fuse_request_send fs/fuse/dev.c:426 [inline]
 fuse_simple_request+0x1034/0x1870 fs/fuse/dev.c:511
 fuse_do_getattr+0x396/0xf90 fs/fuse/dir.c:1119
 vfs_getattr fs/stat.c:161 [inline]
 vfs_statx+0x1ba/0x4a0 fs/stat.c:233
 vfs_fstatat fs/stat.c:267 [inline]
 __do_sys_newfstatat fs/stat.c:437 [inline]
 __se_sys_newfstatat+0xed/0x7d0 fs/stat.c:431
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fabefa8c0d9
RSP: 002b:00007fabf07fb168 EFLAGS: 00000246 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 00007fabefbac120 RCX: 00007fabefa8c0d9
RDX: 0000000020000240 RSI: 0000000020000180 RDI: ffffffffffffff9c
RBP: 00007fabefae7ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd43cb320f R14: 00007fabf07fb300 R15: 0000000000022000
 </TASK>

Showing all locks held in the system:
1 lock held by rcu_tasks_kthre/12:
 #0: ffffffff8d127330 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/13:
 #0: ffffffff8d127b30 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x30/0xd00 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/27:
 #0: ffffffff8d127160 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
1 lock held by khugepaged/34:
2 locks held by getty/3309:
 #0: ffff8880289ac098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244
 #1: ffffc900031262f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x53b/0x1650 drivers/tty/n_tty.c:2177
1 lock held by syz-fuzzer/4430:
 #0: ffff88807313e6d8 (&mm->mmap_lock#2){++++}-{3:3}, at: mmap_read_lock+0x17/0x50 include/linux/mmap_lock.h:117
1 lock held by syz-executor.4/3681:
 #0: ffffffff8d12c738 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:292 [inline]
 #0: ffffffff8d12c738 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x384/0x860 kernel/rcu/tree_exp.h:946
2 locks held by kworker/0:8/3757:
 #0: ffff888012866538 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x7f2/0xdb0
 #1: ffffc90004917d00 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x831/0xdb0 kernel/workqueue.c:2264
2 locks held by syz-executor.3/22182:
3 locks held by syz-executor.1/22220:

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

NMI backtrace for cpu 1
CPU: 1 PID: 27 Comm: khungtaskd Not tainted 6.1.0-rc6-syzkaller-00012-g4312098baf37 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106
 nmi_cpu_backtrace+0x46f/0x4f0 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x1ba/0x420 lib/nmi_backtrace.c:62
 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
 check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline]
 watchdog+0xcf5/0xd40 kernel/hung_task.c:377
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 3724 Comm: kworker/0:5 Not tainted 6.1.0-rc6-syzkaller-00012-g4312098baf37 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
Workqueue: rcu_gp process_srcu
RIP: 0010:delay_tsc+0x67/0xe0 arch/x86/lib/delay.c:79
Code: 39 f5 73 76 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 bf 01 00 00 00 e8 46 bf ce f6 65 8b 05 a7 fb 72 75 85 c0 74 2f f3 90 <bf> 01 00 00 00 e8 af bd ce f6 e8 ca d6 02 00 41 39 c7 75 20 0f 01
RSP: 0018:ffffc900000c7ac0 EFLAGS: 00000286
RAX: 0000000080000000 RBX: 000001ebf10aaa76 RCX: 0000000000000001
RDX: 00000000000001eb RSI: ffffffff8b4b3ac0 RDI: 0000000000000001
RBP: 0000000000000620 R08: ffffffff84378334 R09: fffffbfff1cebe0e
R10: fffffbfff1cebe0e R11: 1ffffffff1cebe0d R12: dffffc0000000000
R13: ffffffff91e5cec8 R14: 0000000000002afa R15: 0000000000000000
FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1130f821b8 CR3: 000000003643a000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 try_check_zero+0x436/0x450 kernel/rcu/srcutree.c:974
 srcu_advance_state kernel/rcu/srcutree.c:1521 [inline]
 process_srcu+0x1b9/0x1140 kernel/rcu/srcutree.c:1622
 process_one_work+0x877/0xdb0 kernel/workqueue.c:2289
 worker_thread+0xb14/0x1330 kernel/workqueue.c:2436
 kthread+0x266/0x300 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
 </TASK>