rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: { 0-.... } 2639 jiffies s: 2485 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):

Sending NMI from CPU 1 to CPUs 0:
cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes
NMI backtrace for cpu 0
CPU: 0 PID: 12805 Comm: syz-executor.5 Not tainted 6.7.0-rc3-syzkaller-00066-g940704296f7e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/10/2023
RIP: 0010:vsnprintf+0x109/0x1870 lib/vsprintf.c:2769
Code: 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 04 02 48 89 da 83 e2 07 38 d0 7f 08 84 c0 0f 85 6c 14 00 00 44 0f b6 23 <31> ff 44 89 e6 e8 cd 6c 06 fb 45 84 e4 48 8b 6c 24 18 48 8d 44 24
RSP: 0018:ffffc90000007070 EFLAGS: 00000046
RAX: 0000000000000000 RBX: ffffffff86889e60 RCX: ffffc90001001000
RDX: 0000000000000000 RSI: ffffffff864780ce RDI: 0000000000000007
RBP: ffffc90000007200 R08: 0000000000000007 R09: 000000007fffffff
R10: 000000007fffffff R11: 000000000008ed10 R12: 000000000000005b
R13: ffffffff86889e60 R14: ffffc90000007158 R15: ffffc90000007328
FS:  00007f7812a9f6c0(0000) GS:ffff8881f6600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7813962000 CR3: 000000010d3be000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 sprintf+0xcd/0x100 lib/vsprintf.c:3023
 print_time kernel/printk/printk.c:1324 [inline]
 info_print_prefix+0x258/0x350 kernel/printk/printk.c:1350
 record_print_text+0x143/0x410 kernel/printk/printk.c:1399
 printk_get_next_message+0x2ce/0x7c0 kernel/printk/printk.c:2828
 console_emit_next_record kernel/printk/printk.c:2868 [inline]
 console_flush_all+0x3b0/0xd50 kernel/printk/printk.c:2967
 console_unlock+0x10c/0x260 kernel/printk/printk.c:3036
 vprintk_emit+0x17f/0x5f0 kernel/printk/printk.c:2303
 dev_vprintk_emit drivers/base/core.c:4850 [inline]
 dev_printk_emit+0xfb/0x140 drivers/base/core.c:4861
 __dev_printk+0xf5/0x270 drivers/base/core.c:4873
 _dev_err+0xe5/0x120 drivers/base/core.c:4916
 wdm_int_callback+0x7d1/0xaa0 drivers/usb/class/cdc-wdm.c:276
 __usb_hcd_giveback_urb+0x359/0x5c0 drivers/usb/core/hcd.c:1650
 usb_hcd_giveback_urb+0x389/0x430 drivers/usb/core/hcd.c:1733
 dummy_timer+0x1415/0x35f0 drivers/usb/gadget/udc/dummy_hcd.c:1987
 call_timer_fn+0x193/0x580 kernel/time/timer.c:1700
 expire_timers kernel/time/timer.c:1751 [inline]
 __run_timers+0x764/0xb10 kernel/time/timer.c:2022
 run_timer_softirq+0x58/0xd0 kernel/time/timer.c:2035
 __do_softirq+0x20a/0x94b kernel/softirq.c:553
 invoke_softirq kernel/softirq.c:427 [inline]
 __irq_exit_rcu kernel/softirq.c:632 [inline]
 irq_exit_rcu+0xa7/0x110 kernel/softirq.c:644
 sysvec_apic_timer_interrupt+0x8e/0xb0 arch/x86/kernel/apic/apic.c:1076
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:console_flush_all+0xa0c/0xd50 kernel/printk/printk.c:2973
Code: e8 a9 59 23 00 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de e8 07 9f 1c 00 48 85 db 0f 85 74 01 00 00 e8 69 a3 1c 00 fb 48 8b 04 24 <4c> 89 fa 83 e2 07 0f b6 00 38 d0 7f 08 84 c0 0f 85 4b 02 00 00 41
RSP: 0018:ffffc90001bffb10 EFLAGS: 00000293
RAX: fffff5200037ff89 RBX: 0000000000000000 RCX: ffffffff81314f29
RDX: ffff88811cf65700 RSI: ffffffff81314f37 RDI: 0000000000000007
RBP: dffffc0000000000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 205d304320202020 R12: 0000000000000001
R13: ffffffff88358098 R14: ffffffff88358040 R15: ffffc90001bffc48
 console_unlock+0x10c/0x260 kernel/printk/printk.c:3036
 vprintk_emit+0x17f/0x5f0 kernel/printk/printk.c:2303
 vprintk+0x7b/0x90 kernel/printk/printk_safe.c:45
 _printk+0xc8/0x100 kernel/printk/printk.c:2328
 usb_gadget_register_driver_owner+0x1c2/0x2d0 drivers/usb/gadget/udc/core.c:1695
 raw_ioctl_run drivers/usb/gadget/legacy/raw_gadget.c:595 [inline]
 raw_ioctl+0x172f/0x2b80 drivers/usb/gadget/legacy/raw_gadget.c:1306
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:871 [inline]
 __se_sys_ioctl fs/ioctl.c:857 [inline]
 __x64_sys_ioctl+0x18f/0x210 fs/ioctl.c:857
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3f/0x110 arch/x86/entry/common.c:82
 entry_SYSCALL_64_after_hwframe+0x63/0x6b
RIP: 0033:0x7f781371c90b
Code: 00 48 89 44 24 18 31 c0 48 8d 44 24 60 c7 04 24 10 00 00 00 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1c 48 8b 44 24 18 64 48 2b 04 25 28 00 00
RSP: 002b:00007f7812a9cfa0 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f781371c90b
RDX: 0000000000000000 RSI: 0000000000005501 RDI: 0000000000000007
RBP: 00007f7812a9e070 R08: 0000000000000010 R09: 00352e6364755f79
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f7812a9d040 R14: 00000000200002c0 R15: 00007f7813961c58
 </TASK>
imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 6-1:1.0: nonzero urb status received: -71
cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes
imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 6-1:1.0: nonzero urb status received: -71
cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes
imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 6-1:1.0: nonzero urb status received: -71
cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes
imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 6-1:1.0: nonzero urb status received: -71
cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes
imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 6-1:1.0: nonzero urb status received: -71
cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes
imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 6-1:1.0: nonzero urb status received: -71
cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes
imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 6-1:1.0: nonzero urb status received: -71
cdc_wdm 6-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 6-1:1.0: wdm_int_callback - usb_submit_urb failed with result -19
imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
usb 2-1: USB disconnect, device number 99
imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
usb 2-1: new high-speed USB device number 100 using dummy_hcd
usb 2-1: Using ep0 maxpacket: 16
usb 2-1: config 0 interface 0 altsetting 0 endpoint 0x8B has an invalid bInterval 39, changing to 9
usb 2-1: config 0 interface 0 altsetting 0 endpoint 0x8B has invalid maxpacket 33856, setting to 1024
usb 2-1: New USB device found, idVendor=15c2, idProduct=0040, bcdDevice= 7.f3
usb 2-1: New USB device strings: Mfr=1, Product=130, SerialNumber=3
usb 2-1: Product: syz
usb 2-1: Manufacturer: syz
usb 2-1: SerialNumber: syz
usb 2-1: config 0 descriptor??
input: iMON Panel, Knob and Mouse(15c2:0040) as /devices/platform/dummy_hcd.1/usb2/2-1/2-1:0.0/input/input37
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: wdm_int_callback - usb_submit_urb failed with result -19
rc_core: IR keymap rc-imon-pad not found
Registered IR keymap rc-empty
imon 2-1:0.0: Looks like you're trying to use an IR protocol this device does not support
imon 2-1:0.0: Unsupported IR protocol specified, overriding to iMON IR protocol
rc rc0: iMON Remote (15c2:0040) as /devices/platform/dummy_hcd.1/usb2/2-1/2-1:0.0/rc/rc0
input: iMON Remote (15c2:0040) as /devices/platform/dummy_hcd.1/usb2/2-1/2-1:0.0/rc/rc0/input38
imon 2-1:0.0: iMON device (15c2:0040, intf0) on usb<2:100> initialized
imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
imon 2-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: wdm_int_callback - usb_submit_urb failed with result -19
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: nonzero urb status received: -71
cdc_wdm 5-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 5-1:1.0: wdm_int_callback - usb_submit_urb failed with result -19
usb 5-1: new high-speed USB device number 106 using dummy_hcd
usb 5-1: Using ep0 maxpacket: 8