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kernel BUG at net/core/dev.c:10148!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 4430 Comm: syz.0.18 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:register_netdevice+0x1b58/0x1b80 net/core/dev.c:10148
Code: ff 44 89 f1 80 e1 07 fe c1 38 c1 0f 8c 29 fc ff ff 4c 89 f7 e8 19 8b 9c f9 e9 1c fc ff ff e8 6f 5e 4b f9 0f 0b e8 68 5e 4b f9 <0f> 0b e8 61 5e 4b f9 0f 0b e8 5a 5e 4b f9 41 bd 42 00 00 00 e9 41
RSP: 0018:ffffc900033875e0 EFLAGS: 00010293
RAX: ffffffff8836cfb8 RBX: 1ffff92000670ecc RCX: ffff88802f708000
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000
RBP: ffffc90003387738 R08: ffffffff8dd5b907 R09: 1ffffffff1bab720
R10: dffffc0000000000 R11: fffffbfff1bab721 R12: dffffc0000000000
R13: ffffffff97033600 R14: 0000000000000003 R15: ffff888026ef4000
FS:  000055557b73f500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001000 CR3: 000000002a03e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 register_netdev+0x37/0x50 net/core/dev.c:10371
 gether_register_netdev+0x81/0x150 drivers/usb/gadget/function/u_ether.c:886
 ncm_bind+0x699/0xd90 drivers/usb/gadget/function/f_ncm.c:1461
 usb_add_function+0x2d9/0x980 drivers/usb/gadget/composite.c:337
 configfs_composite_bind+0xa02/0xf60 drivers/usb/gadget/configfs.c:1409
 gadget_bind_driver+0x2af/0x760 drivers/usb/gadget/udc/core.c:1651
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x24a/0xb40 drivers/base/dd.c:638
 __driver_probe_device+0x1f5/0x390 drivers/base/dd.c:804
 driver_probe_device+0x4f/0x420 drivers/base/dd.c:834
 __driver_attach+0x43d/0x6c0 drivers/base/dd.c:1220
 bus_for_each_dev+0x182/0x1f0 drivers/base/bus.c:303
 bus_add_driver+0x324/0x5d0 drivers/base/bus.c:620
 driver_register+0x32d/0x430 drivers/base/driver.c:246
 usb_gadget_register_driver_owner+0xf5/0x260 drivers/usb/gadget/udc/core.c:1730
 gadget_dev_desc_UDC_store+0x1c3/0x2e0 drivers/usb/gadget/configfs.c:290
 flush_write_buffer fs/configfs/file.c:207 [inline]
 configfs_write_iter+0x30b/0x400 fs/configfs/file.c:229
 call_write_iter include/linux/fs.h:2265 [inline]
 new_sync_write fs/read_write.c:491 [inline]
 vfs_write+0x482/0x9a0 fs/read_write.c:584
 ksys_write+0x14d/0x260 fs/read_write.c:637
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f589499e0d9
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:00007fff5f558088 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f5894c25fa0 RCX: 00007f589499e0d9
RDX: 000000000000000b RSI: 0000200000001400 RDI: 0000000000000003
RBP: 00007f5894a35024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f5894c25fac R14: 00007f5894c25fa0 R15: 00007f5894c25fa0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:register_netdevice+0x1b58/0x1b80 net/core/dev.c:10148
Code: ff 44 89 f1 80 e1 07 fe c1 38 c1 0f 8c 29 fc ff ff 4c 89 f7 e8 19 8b 9c f9 e9 1c fc ff ff e8 6f 5e 4b f9 0f 0b e8 68 5e 4b f9 <0f> 0b e8 61 5e 4b f9 0f 0b e8 5a 5e 4b f9 41 bd 42 00 00 00 e9 41
RSP: 0018:ffffc900033875e0 EFLAGS: 00010293
RAX: ffffffff8836cfb8 RBX: 1ffff92000670ecc RCX: ffff88802f708000
RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000
RBP: ffffc90003387738 R08: ffffffff8dd5b907 R09: 1ffffffff1bab720
R10: dffffc0000000000 R11: fffffbfff1bab721 R12: dffffc0000000000
R13: ffffffff97033600 R14: 0000000000000003 R15: ffff888026ef4000
FS:  000055557b73f500(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001000 CR3: 000000002a03e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400