rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 1-...D
 } 2656 jiffies s: 2149 root: 0x2/.
rcu: blocking rcu_node structures (internal RCU debug):

Sending NMI from CPU 0 to CPUs 1:
task:modprobe        state:R
NMI backtrace for cpu 1
CPU: 1 PID: 13147 Comm: modprobe Not tainted 6.10.0-rc4-syzkaller-00025-gb0fc24f36191 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/07/2024
RIP: 0010:vsnprintf+0x91b/0x1880 lib/vsprintf.c:2890
Code: c1 ea 03 0f b6 14 02 4c 89 e8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 be 0d 00 00 49 63 5d 00 e8 0a d0 c7 fa 48 8b 4c 24 50 <48> 89 da 48 89 ef 48 8b 34 24 e8 e6 ce fe ff 4c 89 e2 48 c1 ea 03
RSP: 0018:ffffc900001b76d0 EFLAGS: 00000046
RAX: 0000000000040000 RBX: 000000000007a8e5 RCX: ffff0a1000000609
RDX: 0000000000040000 RSI: ffffffff868b73a6 RDI: ffffc900001b77c8
RBP: ffffc900001b7987 R08: 0000000000000005 R09: 000000000000002f
R10: 0000000000000018 R11: 0000000000272980 R12: ffffffff86c8ac2b
R13: ffffc900001b7830 R14: ffffc900001b77b8 R15: 0000000000000009
FS:  0000000000000000(0000) GS:ffff8881f6500000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa8ed2c36a8 CR3: 0000000112476000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 sprintf+0xcd/0x110 lib/vsprintf.c:3028
 print_time kernel/printk/printk.c:1327 [inline]
 info_print_prefix+0x25c/0x350 kernel/printk/printk.c:1353
 record_print_text+0x141/0x400 kernel/printk/printk.c:1402
 printk_get_next_message+0x2a6/0x670 kernel/printk/printk.c:2855
 console_emit_next_record kernel/printk/printk.c:2895 [inline]
 console_flush_all+0x3b2/0xd70 kernel/printk/printk.c:2994
 console_unlock+0xae/0x290 kernel/printk/printk.c:3063
 vprintk_emit kernel/printk/printk.c:2345 [inline]
 vprintk_emit+0x11a/0x5a0 kernel/printk/printk.c:2300
 vprintk+0x7f/0xa0 kernel/printk/printk_safe.c:45
 _printk+0xc8/0x100 kernel/printk/printk.c:2370
 sched_show_task kernel/sched/core.c:9173 [inline]
 sched_show_task+0x1fa/0x650 kernel/sched/core.c:9165
 show_state_filter+0xee/0x320 kernel/sched/core.c:9236
 k_spec drivers/tty/vt/keyboard.c:667 [inline]
 k_spec+0xed/0x150 drivers/tty/vt/keyboard.c:656
 kbd_keycode drivers/tty/vt/keyboard.c:1524 [inline]
 kbd_event+0xcbd/0x17a0 drivers/tty/vt/keyboard.c:1543
 input_to_handler+0x38f/0x4d0 drivers/input/input.c:132
 input_pass_values+0x5c9/0x840 drivers/input/input.c:161
 input_event_dispose+0x37a/0x630 drivers/input/input.c:378
 input_handle_event+0x11c/0xd80 drivers/input/input.c:406
 input_event drivers/input/input.c:435 [inline]
 input_event+0x83/0xa0 drivers/input/input.c:427
 input_sync include/linux/input.h:450 [inline]
 hidinput_report_event+0xb2/0x100 drivers/hid/hid-input.c:1763
 hid_report_raw_event+0x274/0x11c0 drivers/hid/hid-core.c:2022
 hid_input_report+0x345/0x440 drivers/hid/hid-core.c:2089
 hid_irq_in+0x35e/0x870 drivers/hid/usbhid/hid-core.c:284
 __usb_hcd_giveback_urb+0x389/0x6e0 drivers/usb/core/hcd.c:1650
 usb_hcd_giveback_urb+0x396/0x450 drivers/usb/core/hcd.c:1734
 dummy_timer+0x17f6/0x3900 drivers/usb/gadget/udc/dummy_hcd.c:1987
 __run_hrtimer kernel/time/hrtimer.c:1687 [inline]
 __hrtimer_run_queues+0x20c/0xcc0 kernel/time/hrtimer.c:1751
 hrtimer_interrupt+0x31b/0x800 kernel/time/hrtimer.c:1813
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1032 [inline]
 __sysvec_apic_timer_interrupt+0x10f/0x450 arch/x86/kernel/apic/apic.c:1049
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0x3e/0xb0 arch/x86/kernel/apic/apic.c:1043
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:get_stack_info_noinstr+0xed/0x120 arch/x86/kernel/dumpstack_64.c:174
Code: ff ff 48 8d 48 08 48 39 d5 72 29 48 39 cd 73 24 41 c7 04 24 02 00 00 00 49 89 54 24 08 49 89 4c 24 10 48 8b 00 49 89 44 24 18 <b8> 01 00 00 00 e9 36 ff ff ff 5b 4c 89 e6 48 89 ef 5d 41 5c 41 5d
RSP: 0018:ffffc900001b88e8 EFLAGS: 00000202
RAX: 0000000000000001 RBX: ffff888132b78000 RCX: ffffc90001ca0000
RDX: ffffc900001b8a10 RSI: ffff888132b78000 RDI: ffffc90001c9f1b0
RBP: ffffc90001c9f1b0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000002 R12: ffffc900001b8a10
R13: ffffc900001b8a10 R14: ffffc900001b1000 R15: ffffc900001b9000
 get_stack_info+0x49/0x150 arch/x86/kernel/dumpstack_64.c:199
 stack_access_ok+0xe0/0x270 arch/x86/kernel/unwind_orc.c:396
 deref_stack_reg arch/x86/kernel/unwind_orc.c:403 [inline]
 unwind_next_frame+0xd9b/0x23a0 arch/x86/kernel/unwind_orc.c:585
 arch_stack_walk+0x100/0x170 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:579
 poison_slab_object+0xf7/0x160 mm/kasan/common.c:240
 __kasan_slab_free+0x14/0x30 mm/kasan/common.c:256
 kasan_slab_free include/linux/kasan.h:184 [inline]
 slab_free_hook mm/slub.c:2196 [inline]
 slab_free mm/slub.c:4437 [inline]
 kmem_cache_free+0x110/0x380 mm/slub.c:4512
 rcu_do_batch kernel/rcu/tree.c:2535 [inline]
 rcu_core+0x828/0x16b0 kernel/rcu/tree.c:2809
 handle_softirqs+0x209/0x8e0 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu kernel/softirq.c:637 [inline]
 irq_exit_rcu+0xac/0x110 kernel/softirq.c:649
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline]
 sysvec_apic_timer_interrupt+0x90/0xb0 arch/x86/kernel/apic/apic.c:1043
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:write_comp_data+0x0/0x90 kernel/kcov.c:230
Code: 48 8b 05 f3 88 b0 7e 48 8b 80 48 15 00 00 c3 cc cc cc cc 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <49> 89 d2 49 89 f8 49 89 f1 65 48 8b 15 bf 88 b0 7e 65 8b 05 c0 88
RSP: 0018:ffffc90001c9f260 EFLAGS: 00000202
RAX: 0000000000000000 RBX: 0000000000000002 RCX: ffffffff81153d61
RDX: 0000000000000005 RSI: 0000000000000003 RDI: 0000000000000001
RBP: ffffffff86c5aec0 R08: 0000000000000001 R09: 0000000000000002
R10: 0000000000000005 R11: 0000000000000001 R12: 0000000000000005
R13: 0000000000000001 R14: 0000000000000008 R15: ffffc90001c9f34d
 __sanitizer_cov_trace_switch+0x54/0x90 kernel/kcov.c:341
 unwind_next_frame+0x6c1/0x23a0 arch/x86/kernel/unwind_orc.c:515
 arch_stack_walk+0x100/0x170 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122
 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
 kasan_save_track+0x14/0x30 mm/kasan/common.c:68
 unpoison_slab_object mm/kasan/common.c:312 [inline]
 __kasan_slab_alloc+0x6e/0x70 mm/kasan/common.c:338
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook mm/slub.c:3941 [inline]
 slab_alloc_node mm/slub.c:4001 [inline]
 kmem_cache_alloc_noprof+0x11c/0x2b0 mm/slub.c:4008
 vm_area_dup+0x1f/0x160 kernel/fork.c:482
 __split_vma+0x181/0x1190 mm/mmap.c:2394
 do_vmi_align_munmap.constprop.0+0x2b5/0x1970 mm/mmap.c:2592
 do_vmi_munmap+0x224/0x410 mm/mmap.c:2759
 __vm_munmap+0x141/0x320 mm/mmap.c:3038
 elf_map fs/binfmt_elf.c:383 [inline]
 elf_load+0x4d2/0x880 fs/binfmt_elf.c:408
 load_elf_binary+0xc61/0x4db0 fs/binfmt_elf.c:1132
 search_binary_handler fs/exec.c:1797 [inline]
 exec_binprm fs/exec.c:1839 [inline]
 bprm_execve fs/exec.c:1891 [inline]
 bprm_execve+0x703/0x19a0 fs/exec.c:1867
 kernel_execve+0x3cf/0x4e0 fs/exec.c:2058
 call_usermodehelper_exec_async+0x255/0x4c0 kernel/umh.c:110
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
 stack:26464 pid:13654 tgid:13654 ppid:0      flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5408 [inline]
 __schedule+0xca6/0x3170 kernel/sched/core.c:6745
 do_task_dead+0xd6/0x110 kernel/sched/core.c:6761
 do_exit+0x1d2f/0x2b20 kernel/exit.c:925
 do_group_exit+0xd3/0x2a0 kernel/exit.c:1023
 __do_sys_exit_group kernel/exit.c:1034 [inline]
 __se_sys_exit_group kernel/exit.c:1032 [inline]
 __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1032
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 00