------------[ cut here ]------------
kernel BUG at net/core/dev.c:9977!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 404 Comm: syz.2.18 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
RIP: 0010:register_netdevice+0x138c/0x13a0 net/core/dev.c:9977
Code: ff 44 89 f1 80 e1 07 fe c1 38 c1 0f 8c 45 fd ff ff 4c 89 f7 e8 85 21 ff fd e9 38 fd ff ff e8 db 93 c4 fd 0f 0b e8 d4 93 c4 fd <0f> 0b e8 cd 93 c4 fd 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 90 55 48
RSP: 0018:ffffc90002667880 EFLAGS: 00010293
RAX: ffffffff83a022ec RBX: ffff888118c4c000 RCX: ffff888118f4bc00
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000
RBP: ffffc90002667978 R08: ffffffff86ad39e7 R09: 1ffffffff0d5a73c
R10: dffffc0000000000 R11: fffffbfff0d5a73d R12: 1ffff1102318989f
R13: dffffc0000000000 R14: 0000000000000003 R15: ffffffff86acaa00
FS:  0000555564432500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d363fff CR3: 0000000118dcd000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 register_netdev+0x3e/0x50 net/core/dev.c:10192
 gether_register_netdev+0x7f/0x120 drivers/usb/gadget/function/u_ether.c:881
 ecm_bind+0x18c/0x8c0 drivers/usb/gadget/function/f_ecm.c:708
 usb_add_function+0x2c1/0x820 drivers/usb/gadget/composite.c:337
 configfs_composite_bind+0xa9c/0x13a0 drivers/usb/gadget/configfs.c:1440
 udc_bind_to_driver+0x24e/0x6d0 drivers/usb/gadget/udc/core.c:1573
 usb_gadget_probe_driver+0x1fc/0x380 drivers/usb/gadget/udc/core.c:1639
 gadget_dev_desc_UDC_store+0x217/0x330 drivers/usb/gadget/configfs.c:321
 flush_write_buffer fs/configfs/file.c:251 [inline]
 configfs_write_file+0x320/0x3d0 fs/configfs/file.c:283
 vfs_write+0x344/0xd70 fs/read_write.c:603
 ksys_write+0x14a/0x260 fs/read_write.c:658
 __do_sys_write fs/read_write.c:670 [inline]
 __se_sys_write fs/read_write.c:667 [inline]
 __x64_sys_write+0x7b/0x90 fs/read_write.c:667
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f7fd7c27b19
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffe7b755e08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f7fd7eadfa0 RCX: 00007f7fd7c27b19
RDX: 000000000000000b RSI: 0000200000000400 RDI: 0000000000000004
RBP: 00007f7fd7cbfb70 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f7fd7eadfac R14: 00007f7fd7eadfa0 R15: 00007f7fd7eadfa0
Modules linked in:
---[ end trace d61efeb8121b4673 ]---
RIP: 0010:register_netdevice+0x138c/0x13a0 net/core/dev.c:9977
Code: ff 44 89 f1 80 e1 07 fe c1 38 c1 0f 8c 45 fd ff ff 4c 89 f7 e8 85 21 ff fd e9 38 fd ff ff e8 db 93 c4 fd 0f 0b e8 d4 93 c4 fd <0f> 0b e8 cd 93 c4 fd 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 90 55 48
RSP: 0018:ffffc90002667880 EFLAGS: 00010293
RAX: ffffffff83a022ec RBX: ffff888118c4c000 RCX: ffff888118f4bc00
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000
RBP: ffffc90002667978 R08: ffffffff86ad39e7 R09: 1ffffffff0d5a73c
R10: dffffc0000000000 R11: fffffbfff0d5a73d R12: 1ffff1102318989f
R13: dffffc0000000000 R14: 0000000000000003 R15: ffffffff86acaa00
FS:  0000555564432500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d363fff CR3: 0000000118dcd000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400