list_add double add: new=ffff88802f2b6918, prev=ffff88802f2b6918, next=ffff888032274070.
------------[ cut here ]------------
kernel BUG at lib/list_debug.c:37!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 1 UID: 0 PID: 7454 Comm: syz.4.291 Not tainted 6.14.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:__list_add_valid_or_report+0xa4/0x130 lib/list_debug.c:35
Code: f7 74 11 b0 01 5b 41 5c 41 5d 41 5e 41 5f 5d e9 5d 56 21 fc 48 c7 c7 40 8c 60 8c 4c 89 fe 4c 89 e2 4c 89 f1 e8 cd 19 38 fc 90 <0f> 0b 48 c7 c7 40 8a 60 8c e8 be 19 38 fc 90 0f 0b 48 c7 c7 e0 8a
RSP: 0018:ffffc90003f7f0c0 EFLAGS: 00010046
RAX: 0000000000000058 RBX: 1ffff11005e56d23 RCX: 61ec855b2d0d2f00
RDX: 0000000000000000 RSI: 0000000080000004 RDI: 0000000000000000
RBP: 1ffff1100644e80f R08: ffffffff819f146c R09: 1ffff920007efdb4
R10: dffffc0000000000 R11: fffff520007efdb5 R12: ffff88802f2b6918
R13: dffffc0000000000 R14: ffff888032274070 R15: ffff88802f2b6918
FS:  00007fa26854e6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020002000 CR3: 000000003573c000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 __list_add_valid include/linux/list.h:88 [inline]
 __list_add include/linux/list.h:150 [inline]
 list_add_tail include/linux/list.h:183 [inline]
 usb_hcd_link_urb_to_ep+0x1b7/0x310 drivers/usb/core/hcd.c:1158
 dummy_urb_enqueue+0x290/0x780 drivers/usb/gadget/udc/dummy_hcd.c:1288
 usb_hcd_submit_urb+0x36e/0x1e80 drivers/usb/core/hcd.c:1533
 cm109_submit_buzz_toggle drivers/input/misc/cm109.c:351 [inline]
 cm109_toggle_buzzer_async+0x115/0x250 drivers/input/misc/cm109.c:484
 cm109_input_ev+0xe0/0x180 drivers/input/misc/cm109.c:615
 input_event_dispose+0x87/0x600 drivers/input/input.c:321
 input_handle_event+0xa71/0xbe0 drivers/input/input.c:369
 input_inject_event+0x21e/0x350 drivers/input/input.c:423
 kd_sound_helper+0x101/0x210 drivers/tty/vt/keyboard.c:256
 input_handler_for_each_handle+0x105/0x1d0 drivers/input/input.c:2554
 kd_mksound+0xa9/0x1a0 drivers/tty/vt/keyboard.c:280
 handle_ascii drivers/tty/vt/vt.c:2251 [inline]
 do_con_trol drivers/tty/vt/vt.c:2568 [inline]
 do_con_write+0x2cf6/0x4c30 drivers/tty/vt/vt.c:3092
 con_write+0x26/0x40 drivers/tty/vt/vt.c:3432
 process_output_block drivers/tty/n_tty.c:574 [inline]
 n_tty_write+0xd64/0x1230 drivers/tty/n_tty.c:2389
 iterate_tty_write drivers/tty/tty_io.c:1015 [inline]
 file_tty_write+0x548/0x9b0 drivers/tty/tty_io.c:1090
 new_sync_write fs/read_write.c:586 [inline]
 vfs_write+0xad1/0xd10 fs/read_write.c:679
 ksys_write+0x18f/0x2b0 fs/read_write.c:731
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa267785d29
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa26854e038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007fa267975fa0 RCX: 00007fa267785d29
RDX: 0000000000001006 RSI: 0000000020001040 RDI: 0000000000000005
RBP: 00007fa267801aa8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fa267975fa0 R15: 00007ffe603e7248
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__list_add_valid_or_report+0xa4/0x130 lib/list_debug.c:35
Code: f7 74 11 b0 01 5b 41 5c 41 5d 41 5e 41 5f 5d e9 5d 56 21 fc 48 c7 c7 40 8c 60 8c 4c 89 fe 4c 89 e2 4c 89 f1 e8 cd 19 38 fc 90 <0f> 0b 48 c7 c7 40 8a 60 8c e8 be 19 38 fc 90 0f 0b 48 c7 c7 e0 8a
RSP: 0018:ffffc90003f7f0c0 EFLAGS: 00010046
RAX: 0000000000000058 RBX: 1ffff11005e56d23 RCX: 61ec855b2d0d2f00
RDX: 0000000000000000 RSI: 0000000080000004 RDI: 0000000000000000
RBP: 1ffff1100644e80f R08: ffffffff819f146c R09: 1ffff920007efdb4
R10: dffffc0000000000 R11: fffff520007efdb5 R12: ffff88802f2b6918
R13: dffffc0000000000 R14: ffff888032274070 R15: ffff88802f2b6918
FS:  00007fa26854e6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020002000 CR3: 000000003573c000 CR4: 0000000000350ef0