------------[ cut here ]------------ kernel BUG at net/core/dev.c:11616! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 7591 Comm: syz.0.589 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026 RIP: 0010:register_netdevice+0x2225/0x2280 net/core/dev.c:11616 Code: e9 1e fa ff ff 89 f9 80 e1 07 38 c1 0f 8c 20 fb ff ff e8 ae 6d 59 f8 e9 16 fb ff ff e8 c4 e8 e1 f7 90 0f 0b e8 bc e8 e1 f7 90 <0f> 0b e8 b4 e8 e1 f7 90 0f 0b 44 89 f9 80 e1 07 38 c1 0f 8c 34 f9 RSP: 0018:ffffc9000d0af580 EFLAGS: 00010283 RAX: ffffffff89e76454 RBX: 1ffff92001a15ec4 RCX: 0000000000080000 RDX: ffffc90003e19000 RSI: 00000000000004b8 RDI: 00000000000004b9 RBP: ffffc9000d0af6f0 R08: ffffffff916c2607 R09: 1ffffffff22d84c0 R10: dffffc0000000000 R11: fffffbfff22d84c1 R12: ffff888034fd47a8 R13: dffffc0000000000 R14: 0000000000000003 R15: ffff888034fd4000 FS: 00007f96c4dc66c0(0000) GS:ffff88812336a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d218ff8 CR3: 000000007faac000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000008000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: register_netdev+0x40/0x60 net/core/dev.c:11829 gether_register_netdev+0x84/0x180 drivers/usb/gadget/function/u_ether.c:873 ecm_bind+0x201/0xa30 drivers/usb/gadget/function/f_ecm.c:696 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:1663 call_driver_probe drivers/base/dd.c:-1 [inline] really_probe+0x254/0xae0 drivers/base/dd.c:707 __driver_probe_device+0x1e8/0x360 drivers/base/dd.c:869 driver_probe_device+0x4f/0x240 drivers/base/dd.c:899 __driver_attach+0x34e/0x630 drivers/base/dd.c:1300 bus_for_each_dev+0x23b/0x2c0 drivers/base/bus.c:383 bus_add_driver+0x38f/0x6e0 drivers/base/bus.c:782 driver_register+0x23a/0x320 drivers/base/driver.c:174 usb_gadget_register_driver_owner+0xf9/0x270 drivers/usb/gadget/udc/core.c:1753 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:1036 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f96c3f9fb19 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:00007f96c4dc6028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f96c4225fa0 RCX: 00007f96c3f9fb19 RDX: 000000000000000b RSI: 00002000000005c0 RDI: 0000000000000005 RBP: 00007f96c4037b70 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f96c4226038 R14: 00007f96c4225fa0 R15: 00007ffc54b36438 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:register_netdevice+0x2225/0x2280 net/core/dev.c:11616 Code: e9 1e fa ff ff 89 f9 80 e1 07 38 c1 0f 8c 20 fb ff ff e8 ae 6d 59 f8 e9 16 fb ff ff e8 c4 e8 e1 f7 90 0f 0b e8 bc e8 e1 f7 90 <0f> 0b e8 b4 e8 e1 f7 90 0f 0b 44 89 f9 80 e1 07 38 c1 0f 8c 34 f9 RSP: 0018:ffffc9000d0af580 EFLAGS: 00010283 RAX: ffffffff89e76454 RBX: 1ffff92001a15ec4 RCX: 0000000000080000 RDX: ffffc90003e19000 RSI: 00000000000004b8 RDI: 00000000000004b9 RBP: ffffc9000d0af6f0 R08: ffffffff916c2607 R09: 1ffffffff22d84c0 R10: dffffc0000000000 R11: fffffbfff22d84c1 R12: ffff888034fd47a8 R13: dffffc0000000000 R14: 0000000000000003 R15: ffff888034fd4000 FS: 00007f96c4dc66c0(0000) GS:ffff88812336a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2d216ff8 CR3: 000000007faac000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000008000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400