------------[ cut here ]------------ kernel BUG at net/core/dev.c:11371! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 7985 Comm: syz.0.458 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:register_netdevice+0x1e94/0x1eb0 net/core/dev.c:11371 Code: ff 44 89 f1 80 e1 07 38 c1 0f 8c be fb ff ff 4c 89 f7 e8 cf b4 89 f8 e9 b1 fb ff ff e8 95 f1 1a f8 90 0f 0b e8 8d f1 1a f8 90 <0f> 0b e8 85 f1 1a f8 90 0f 0b e8 7d f1 1a f8 41 be 42 00 00 00 e9 RSP: 0018:ffffc9001c8e7560 EFLAGS: 00010287 RAX: ffffffff89ac9373 RBX: 1ffff9200391cec0 RCX: 0000000000080000 RDX: ffffc90004719000 RSI: 0000000000000523 RDI: 0000000000000524 RBP: ffffc9001c8e76e0 R08: ffffffff9003cbe7 R09: 1ffffffff200797c R10: dffffc0000000000 R11: fffffbfff200797d R12: ffff8880258ecf10 R13: dffffc0000000000 R14: 0000000000000003 R15: ffff8880258ec000 FS: 00007fb4f85e06c0(0000) GS:ffff888124f0c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f373669e420 CR3: 0000000029dc8000 CR4: 00000000003526f0 Call Trace: register_netdev+0x40/0x60 net/core/dev.c:11594 gether_register_netdev+0x84/0x180 drivers/usb/gadget/function/u_ether.c:873 ncm_bind+0x717/0xdc0 drivers/usb/gadget/function/f_ncm.c:1470 usb_add_function+0x2e1/0x9f0 drivers/usb/gadget/composite.c:333 configfs_composite_bind+0xde0/0x1410 drivers/usb/gadget/configfs.c:1802 gadget_bind_driver+0x2ca/0x9e0 drivers/usb/gadget/udc/core.c:1662 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x254/0xae0 drivers/base/dd.c:706 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:868 driver_probe_device+0x4f/0x240 drivers/base/dd.c:898 __driver_attach+0x339/0x600 drivers/base/dd.c:1292 bus_for_each_dev+0x23b/0x2c0 drivers/base/bus.c:383 bus_add_driver+0x345/0x670 drivers/base/bus.c:763 driver_register+0x23a/0x320 drivers/base/driver.c:174 usb_gadget_register_driver_owner+0xf9/0x270 drivers/usb/gadget/udc/core.c:1752 gadget_dev_desc_UDC_store+0x1c9/0x2f0 drivers/usb/gadget/configfs.c:300 flush_write_buffer fs/configfs/file.c:207 [inline] configfs_write_iter+0x337/0x430 fs/configfs/file.c:229 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x510 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fb4f779e0d9 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:00007fb4f85e0028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fb4f7a25fa0 RCX: 00007fb4f779e0d9 RDX: 000000000000000b RSI: 0000200000001400 RDI: 0000000000000009 RBP: 00007fb4f7835024 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fb4f7a26038 R14: 00007fb4f7a25fa0 R15: 00007ffe7d8c11e8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:register_netdevice+0x1e94/0x1eb0 net/core/dev.c:11371 Code: ff 44 89 f1 80 e1 07 38 c1 0f 8c be fb ff ff 4c 89 f7 e8 cf b4 89 f8 e9 b1 fb ff ff e8 95 f1 1a f8 90 0f 0b e8 8d f1 1a f8 90 <0f> 0b e8 85 f1 1a f8 90 0f 0b e8 7d f1 1a f8 41 be 42 00 00 00 e9 RSP: 0018:ffffc9001c8e7560 EFLAGS: 00010287 RAX: ffffffff89ac9373 RBX: 1ffff9200391cec0 RCX: 0000000000080000 RDX: ffffc90004719000 RSI: 0000000000000523 RDI: 0000000000000524 RBP: ffffc9001c8e76e0 R08: ffffffff9003cbe7 R09: 1ffffffff200797c R10: dffffc0000000000 R11: fffffbfff200797d R12: ffff8880258ecf10 R13: dffffc0000000000 R14: 0000000000000003 R15: ffff8880258ec000 FS: 00007fb4f85e06c0(0000) GS:ffff88812500c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000020000000a000 CR3: 0000000029dc8000 CR4: 00000000003526f0