INFO: task syz.3.384:1591 blocked for more than 122 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.384       state:D stack:0     pid:1591  tgid:1591  ppid:292    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: 0033:0x7fcb4c98ebe9
RSP: 002b:00007ffca97b6d18 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4
RAX: ffffffffffffffda RBX: 00007fcb4cbb7da0 RCX: 00007fcb4c98ebe9
RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003
RBP: 00007fcb4cbb7da0 R08: 0000000000000000 R09: 0000001da97b700f
R10: 00007fcb4cbb7cb0 R11: 0000000000000246 R12: 000000000000f4ff
R13: 00007fcb4cbb6180 R14: ffffffffffffffff R15: 00007ffca97b6e30
 </TASK>
INFO: task syz.3.384:1594 blocked for more than 123 seconds.
      Not tainted syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.384       state:D stack:0     pid:1594  tgid:1591  ppid:292    flags:0x00004004
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_send_open fs/fuse/file.c:53 [inline]
 fuse_file_open+0x47c/0x910 fs/fuse/file.c:161
 fuse_do_open fs/fuse/file.c:190 [inline]
 fuse_open+0x83d/0x1ba0 fs/fuse/file.c:293
 do_dentry_open+0x978/0x1510 fs/open.c:960
 vfs_open+0x86/0x230 fs/open.c:1090
 do_open fs/namei.c:3774 [inline]
 path_openat+0x2b6c/0x34b0 fs/namei.c:3933
 do_filp_open+0x1c6/0x3e0 fs/namei.c:3960
 do_sys_openat2+0x12c/0x1c0 fs/open.c:1438
 do_sys_open fs/open.c:1453 [inline]
 __do_sys_openat fs/open.c:1469 [inline]
 __se_sys_openat fs/open.c:1464 [inline]
 __x64_sys_openat+0x13a/0x170 fs/open.c:1464
 x64_sys_call+0xe69/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:258
 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: 0033:0x7fcb4c98ebe9
RSP: 002b:00007fcb4d78a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fcb4cbb6090 RCX: 00007fcb4c98ebe9
RDX: 0000000000000000 RSI: 0000200000000180 RDI: ffffffffffffff9c
RBP: 00007fcb4ca11e19 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000000008c R11: 0000000000000246 R12: 0000000000000000
R13: 00007fcb4cbb6128 R14: 00007fcb4cbb6090 R15: 00007ffca97b6bb8
 </TASK>
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 37 Comm: khungtaskd Not tainted syzkaller #0 6e51b6b85230f66418c68cf4df55f7a3259ed786
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 6e51b6b85230f66418c68cf4df55f7a3259ed786
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:__list_add_valid_or_report+0x0/0xf0 lib/list_debug.c:24
Code: 48 8d 65 d8 5b 41 5c 41 5d 41 5e 41 5f 5d e9 17 f8 df 02 cc e8 f1 a5 dd 02 cc b8 bb e7 3a 77 90 90 90 90 90 90 90 90 90 90 90 <f3> 0f 1e fa 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 85 f6 0f 84
RSP: 0018:ffffc900002308a0 EFLAGS: 00000046
RAX: dffffc0000000000 RBX: ffff88810367ba00 RCX: dffffc0000000000
RDX: ffff88810367ba00 RSI: ffff8881f6f506a8 RDI: ffff88811c8a3a00
RBP: ffffc90000230910 R08: ffff88810db631c7 R09: 1ffff11021b6c638
R10: dffffc0000000000 R11: ffffed1021b6c639 R12: ffff8881f6f506a8
R13: 1ffff1103edea0d5 R14: ffff88811940c000 R15: ffff88811c8a39c0
FS:  0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8e6d947ff0 CR3: 000000011df86000 CR4: 00000000003526b0
Call Trace:
 <IRQ>
 enqueue_task_fair+0x3fb/0x17e0 kernel/sched/fair.c:7185
 enqueue_task+0x7dc/0x11f0 kernel/sched/core.c:2104
 __activate_task kernel/sched/core.c:2151 [inline]
 activate_task+0x38b/0x3d0 kernel/sched/core.c:2185
 ttwu_do_activate+0x154/0x630 kernel/sched/core.c:4209
 ttwu_queue kernel/sched/core.c:4506 [inline]
 try_to_wake_up+0xd87/0x1b00 kernel/sched/core.c:4845
 wake_up_process+0x14/0x20 kernel/sched/core.c:4980
 hrtimer_wakeup+0x52/0x70 kernel/time/hrtimer.c:1989
 __run_hrtimer kernel/time/hrtimer.c:1753 [inline]
 __hrtimer_run_queues+0x3bd/0x9e0 kernel/time/hrtimer.c:1817
 hrtimer_interrupt+0x37e/0xf00 kernel/time/hrtimer.c:1879
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
 __sysvec_apic_timer_interrupt+0x8e/0x2b0 arch/x86/kernel/apic/apic.c:1055
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0x7d/0x90 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1f/0x30 arch/x86/include/asm/idtentry.h:702
RIP: 0010:console_trylock_spinning kernel/printk/printk.c:2076 [inline]
RIP: 0010:vprintk_emit+0x530/0x640 kernel/printk/printk.c:2461
Code: 81 e6 00 02 00 00 31 ff e8 8d 22 1e 00 48 81 e3 00 02 00 00 75 07 e8 9f 1d 1e 00 eb 06 e8 98 1d 1e 00 fb c6 05 50 44 31 07 00 <e9> 42 fd ff ff e8 86 1d 1e 00 e9 a5 fe ff ff 41 ff ce bf 58 89 41
RSP: 0018:ffffc9000025fac0 EFLAGS: 00000293
RAX: ffffffff8167c6a8 RBX: 0000000000000200 RCX: ffff88810367b900
RDX: 0000000000000000 RSI: 0000000000000200 RDI: 0000000000000000
RBP: ffffc9000025fb88 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff5200004bf48 R12: 1ffff9200004bf5c
R13: 0000000000000104 R14: 0000000000000000 R15: dffffc0000000000
 vprintk_default+0x2a/0x40 kernel/printk/printk.c:2477
 vprintk+0x93/0xa0 kernel/printk/printk_safe.c:73
 _printk+0xd0/0x120 kernel/printk/printk.c:2487
 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>