rcu: INFO: rcu_preempt detected expedited stalls on CPUs/tasks: {
 0-....
 } 2688 jiffies s: 22117 root: 0x1/.
rcu: blocking rcu_node structures (internal RCU debug):

Sending NMI from CPU 1 to CPUs 0:
cdc_wdm 4-1:1.0: nonzero urb status received: -71
NMI backtrace for cpu 0
CPU: 0 PID: 7126 Comm: kworker/0:7 Not tainted 6.5.0-syzkaller-12107-g7ba2090ca64e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/26/2023
Workqueue: events legacy_dvb_usb_read_remote_control
RIP: 0010:__sanitizer_cov_trace_switch+0x16/0x90 kernel/kcov.c:324
Code: 89 fe bf 07 00 00 00 e9 78 fe ff ff 0f 1f 84 00 00 00 00 00 f3 0f 1e fa 41 56 41 55 41 54 49 89 fc 55 48 89 f5 53 48 8b 46 08 <48> 83 f8 20 74 63 77 44 48 83 f8 08 74 53 48 83 f8 10 75 2f 41 bd
RSP: 0018:ffffc90000007018 EFLAGS: 00000046
RAX: 0000000000000008 RBX: 0000000000000010 RCX: 1ffff92000000e26
RDX: 0000000000000000 RSI: ffffffff874f9380 RDI: 0000000000000009
RBP: ffffffff874f9380 R08: 0000000000000001 R09: 0000000000000007
R10: 0000000000000009 R11: 0000000000d3b998 R12: 0000000000000009
R13: 0000000000000004 R14: ffffc90000007130 R15: 0000000000000009
FS:  0000000000000000(0000) GS:ffff8881f6600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffeae887e00 CR3: 000000013fe72000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <IRQ>
 vsnprintf+0x7b6/0x1870 lib/vsprintf.c:2787
 sprintf+0xcd/0x100 lib/vsprintf.c:3022
 print_time kernel/printk/printk.c:1329 [inline]
 info_print_prefix+0x258/0x350 kernel/printk/printk.c:1355
 record_print_text+0x143/0x410 kernel/printk/printk.c:1404
 printk_get_next_message+0x2ca/0x7c0 kernel/printk/printk.c:2844
 console_emit_next_record kernel/printk/printk.c:2879 [inline]
 console_flush_all+0x3be/0xf70 kernel/printk/printk.c:2968
 console_unlock+0x10c/0x260 kernel/printk/printk.c:3037
 vprintk_emit+0x189/0x630 kernel/printk/printk.c:2309
 dev_vprintk_emit drivers/base/core.c:4847 [inline]
 dev_printk_emit+0xfb/0x140 drivers/base/core.c:4858
 __dev_printk+0xf5/0x270 drivers/base/core.c:4870
 _dev_err+0xe5/0x120 drivers/base/core.c:4913
 wdm_int_callback+0x10f/0xaa0 drivers/usb/class/cdc-wdm.c:269
 __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+0x1a0/0x580 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+0x20b/0x94e 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:1074
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:console_flush_all+0x9d2/0xf70 kernel/printk/printk.c:2974
Code: 84 0f 23 00 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de e8 12 64 1c 00 48 85 db 0f 85 95 03 00 00 e8 74 68 1c 00 fb 48 8b 44 24 08 <48> 8b 14 24 0f b6 00 83 e2 07 38 d0 7f 08 84 c0 0f 85 9e 04 00 00
RSP: 0018:ffffc9000d357938 EFLAGS: 00000293
RAX: fffff52001a6af52 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff888109ae9d00 RSI: ffffffff81310a3c RDI: 0000000000000007
RBP: ffffffff88353a00 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 205d304320202020 R12: 0000000000000001
R13: dffffc0000000000 R14: ffffffff88353a58 R15: 0000000000000001
 console_unlock+0x10c/0x260 kernel/printk/printk.c:3037
 vprintk_emit+0x189/0x630 kernel/printk/printk.c:2309
 vprintk+0x7b/0x90 kernel/printk/printk_safe.c:45
 _printk+0xc8/0x100 kernel/printk/printk.c:2334
 legacy_dvb_usb_read_remote_control+0x403/0x4f0 drivers/media/usb/dvb-usb/dvb-usb-remote.c:124
 process_one_work+0x887/0x15d0 kernel/workqueue.c:2630
 process_scheduled_works kernel/workqueue.c:2703 [inline]
 worker_thread+0x8bb/0x1290 kernel/workqueue.c:2784
 kthread+0x33a/0x430 kernel/kthread.c:388
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:304
 </TASK>
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
imon 1-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
imon 1-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
imon 1-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
imon 1-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
imon 1-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
imon 1-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
imon 1-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
imon 1-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
imon 1-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
imon 1-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
m920x_read = error: -19
dvb-usb: error while querying for an remote control event.
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
m920x_read = error: -19
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
dvb-usb: error while querying for an remote control event.
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
m920x_read = error: -19
cdc_wdm 4-1:1.0: nonzero urb status received: -71
dvb-usb: error while querying for an remote control event.
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
m920x_read = error: -19
dvb-usb: error while querying for an remote control event.
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
cdc_wdm 4-1:1.0: nonzero urb status received: -71
cdc_wdm 4-1:1.0: wdm_int_callback - 0 bytes
usb 4-1: USB disconnect, device number 13
m920x_read = error: -19
dvb-usb: error while querying for an remote control event.
m920x_read = error: -19
dvb-usb: error while querying for an remote control event.
m920x_read = error: -19
dvb-usb: error while querying for an remote control event.
m920x_read = error: -19
dvb-usb: error while querying for an remote control event.
m920x_read = error: -19
dvb-usb: error while querying for an remote control event.
m920x_read = error: -19
dvb-usb: error while querying for an remote control event.
m920x_read = error: -19
dvb-usb: error while querying for an remote control event.
usb 2-1: USB disconnect, device number 85
imon 1-1:0.0: imon usb_rx_callback_intf0: status(-71): ignored
usb 6-1: new high-speed USB device number 125 using dummy_hcd
usb 6-1: config 1 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7
usb 6-1: config 1 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0
usb 6-1: New USB device found, idVendor=056a, idProduct=0101, bcdDevice= 0.40
usb 6-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 6-1: Product: syz
usb 6-1: Manufacturer: syz
usb 6-1: SerialNumber: syz
usbhid 6-1:1.0: can't add hid device: -22
usbhid: probe of 6-1:1.0 failed with error -22
usb 6-1: USB disconnect, device number 125
m920x_read = error: -19
dvb-usb: error while querying for an remote control event.
m920x_read = error: -19
dvb-usb: error while querying for an remote control event.
m920x_read = error: -19
dvb-usb: error while querying for an remote control event.
usb 6-1: new high-speed USB device number 126 using dummy_hcd
usb 6-1: config 1 interface 0 altsetting 0 endpoint 0x81 has an invalid bInterval 0, changing to 7
usb 6-1: config 1 interface 0 altsetting 0 endpoint 0x81 has invalid wMaxPacketSize 0
usb 6-1: New USB device found, idVendor=056a, idProduct=0101, bcdDevice= 0.40
usb 6-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 6-1: Product: syz
usb 6-1: Manufacturer: syz
usb 6-1: SerialNumber: syz
usbhid 6-1:1.0: can't add hid device: -22
usbhid: probe of 6-1:1.0 failed with error -22
usb 6-1: USB disconnect, device number 126
m920x_read = error: -19
dvb-usb: error while querying for an remote control event.
m920x_read = error: -19
dvb-usb: error while querying for an remote control event.
m920x_read = error: -19
dvb-usb: error while querying for an remote control event.
m920x_read = error: -19
dvb-usb: error while querying for an remote control event.
usb 2-1: USB disconnect, device number 87
usb 2-1: new high-speed USB device number 88 using dummy_hcd
usb 2-1: Using ep0 maxpacket: 32
usb 2-1: config 1 interface 0 altsetting 0 has 2 endpoint descriptors, different from the interface descriptor's value: 0
usb 2-1: New USB device found, idVendor=0525, idProduct=a4a1, bcdDevice= 0.40
usb 2-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 2-1: Product: syz
usb 2-1: Manufacturer: syz
usb 2-1: SerialNumber: syz
cdc_ether: probe of 2-1:1.0 failed with error -22
m920x_read = error: -19
dvb-usb: error while querying for an remote control event.
usb 6-1: new high-speed USB device number 2 using dummy_hcd
usb 6-1: Using ep0 maxpacket: 16