program: mkdir(&(0x7f0000000000)='./config\x00', 0x1ff) (async) mkdir(&(0x7f0000000000)='./config\x00', 0x1ff) mount(0x0, &(0x7f0000000300)='./config\x00', &(0x7f0000000400)='configfs\x00', 0x0, 0x0) mkdir(&(0x7f0000000800)='./config/usb_gadget/g1\x00', 0x1ff) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./cgroup.cpu/test\x00', 0x777) r0 = openat(0xffffffffffffff9c, &(0x7f0000000140)='./cgroup.cpu/test/memory.limit_in_bytes\x00', 0x2, 0x0) write(r0, &(0x7f0000000380)='100000', 0x6) (async) write(r0, &(0x7f0000000380)='100000', 0x6) r1 = openat(0xffffffffffffff9c, &(0x7f00000001c0)='./cgroup.cpu/test/memory.oom_control\x00', 0x2, 0x0) write(r1, &(0x7f0000000200)='1', 0x1) (async) write(r1, &(0x7f0000000200)='1', 0x1) r2 = openat(0xffffffffffffff9c, &(0x7f0000000240)='./cgroup.cpu/test/cgroup.procs\x00', 0x2, 0x0) vmsplice(0xffffffffffffffff, 0x0, 0x0, 0xf00) (async) vmsplice(0xffffffffffffffff, 0x0, 0x0, 0xf00) write(r2, &(0x7f0000000280)='0', 0x1) socket$nl_generic(0x10, 0x3, 0x10) socket$netlink(0x10, 0x3, 0x0) (async) socket$netlink(0x10, 0x3, 0x0) syz_open_procfs(0x0, &(0x7f0000000080)='net/anycast6\x00') (async) syz_open_procfs(0x0, &(0x7f0000000080)='net/anycast6\x00') mkdirat(0xffffffffffffff9c, &(0x7f0000000340)='./config/usb_gadget/g1/configs/c.1\x00', 0x1ff) mkdirat(0xffffffffffffff9c, &(0x7f00000003c0)='./config/usb_gadget/g1/functions/midi.usb0\x00', 0x1ff) symlinkat(&(0x7f0000000580)='./config/usb_gadget/g1/functions/midi.usb0\x00', 0xffffffffffffff9c, &(0x7f00000005c0)='./config/usb_gadget/g1/configs/c.1/midi.usb0\x00') mkdir(&(0x7f0000000e00)='./config/usb_gadget/g1/functions/ncm.usb0\x00', 0x1ff) symlink(&(0x7f0000000f00)='./config/usb_gadget/g1/functions/ncm.usb0\x00', &(0x7f0000001000)='./config/usb_gadget/g1/configs/c.1/ncm.usb0\x00') r3 = openat(0xffffffffffffff9c, &(0x7f0000001300)='./config/usb_gadget/g1/UDC\x00', 0x1, 0x0) write(r3, &(0x7f0000001400)='dummy_udc.0', 0xb) (async) write(r3, &(0x7f0000001400)='dummy_udc.0', 0xb) [ 86.514077][ T4640] Bluetooth: hci0: command tx timeout [ 86.633062][ T5315] oom_control is deprecated and will be removed. Please report your usecase to linux-mm-@kvack.org if you depend on this functionality. [ 86.955542][ T5315] udc dummy_udc.0: failed to start g1: -105 [ 86.959078][ T5315] configfs-gadget.g1 gadget.0: probe with driver configfs-gadget.g1 failed with error -105 [ 86.988500][ T5315] UDC core: g1: couldn't find an available UDC or it's busy [ 87.086106][ T5314] ------------[ cut here ]------------ [ 87.088931][ T5314] kernel BUG at net/core/dev.c:11340! [ 87.090968][ T5314] Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI [ 87.093595][ T5314] CPU: 0 UID: 0 PID: 5314 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 87.097367][ T5314] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 87.102210][ T5314] RIP: 0010:register_netdevice+0x1e94/0x1eb0 [ 87.105177][ T5314] Code: ff 44 89 f1 80 e1 07 38 c1 0f 8c be fb ff ff 4c 89 f7 e8 ff ce 91 f8 e9 b1 fb ff ff e8 95 9a 22 f8 90 0f 0b e8 8d 9a 22 f8 90 <0f> 0b e8 85 9a 22 f8 90 0f 0b e8 7d 9a 22 f8 41 be 42 00 00 00 e9 [ 87.113974][ T5314] RSP: 0018:ffffc9000f237560 EFLAGS: 00010293 [ 87.116525][ T5314] RAX: ffffffff89a47853 RBX: 1ffff92001e46ec0 RCX: ffff888000eea540 [ 87.119691][ T5314] RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000 [ 87.123025][ T5314] RBP: ffffc9000f2376e0 R08: ffffffff9002a0e7 R09: 1ffffffff200541c [ 87.126257][ T5314] R10: dffffc0000000000 R11: fffffbfff200541d R12: ffff88803fb60f10 [ 87.129383][ T5314] R13: dffffc0000000000 R14: 0000000000000003 R15: ffff88803fb60000 [ 87.132555][ T5314] FS: 00007f88226216c0(0000) GS:ffff88808c549000(0000) knlGS:0000000000000000 [ 87.136101][ T5314] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 87.138818][ T5314] CR2: 0000559c2f64bd10 CR3: 00000000123f8000 CR4: 0000000000352ef0 [ 87.142000][ T5314] Call Trace: [ 87.143556][ T5314] [ 87.144876][ T5314] ? trace_contention_end+0x3d/0x140 [ 87.147050][ T5314] ? __mutex_lock+0x30d/0x1550 [ 87.149049][ T5314] ? register_netdev+0x18/0x60 [ 87.150988][ T5314] ? up_write+0x19f/0x4a0 [ 87.152794][ T5314] ? __pfx___mutex_lock+0x10/0x10 [ 87.154888][ T5314] ? __pfx_register_netdevice+0x10/0x10 [ 87.157007][ T5314] ? __hw_addr_insert+0x1f8/0x220 [ 87.159000][ T5314] ? dev_addr_mod+0x174/0x350 [ 87.160843][ T5314] ? dev_addr_mod+0x1ba/0x350 [ 87.162867][ T5314] register_netdev+0x40/0x60 [ 87.164847][ T5314] gether_register_netdev+0x84/0x180 [ 87.167847][ T5314] ncm_bind+0x717/0xdc0 [ 87.169511][ T5314] ? rcu_is_watching+0x15/0xb0 [ 87.171644][ T5314] usb_add_function+0x2e1/0x9f0 [ 87.173897][ T5314] ? check_remote_wakeup_config+0x58/0x1c0 [ 87.176190][ T5314] configfs_composite_bind+0xde0/0x1410 [ 87.178537][ T5314] ? __pfx_configfs_composite_bind+0x10/0x10 [ 87.181085][ T5314] gadget_bind_driver+0x2ca/0x9e0 [ 87.183262][ T5314] ? __pfx_gadget_bind_driver+0x10/0x10 [ 87.185594][ T5314] really_probe+0x254/0xae0 [ 87.187609][ T5314] __driver_probe_device+0x1e8/0x360 [ 87.189898][ T5314] driver_probe_device+0x4f/0x240 [ 87.192092][ T5314] __driver_attach+0x339/0x600 [ 87.194094][ T5314] bus_for_each_dev+0x23b/0x2c0 [ 87.196180][ T5314] ? __pfx___driver_attach+0x10/0x10 [ 87.198272][ T5314] ? __pfx_bus_for_each_dev+0x10/0x10 [ 87.200596][ T5314] ? do_raw_spin_unlock+0x4d/0x210 [ 87.202787][ T5314] bus_add_driver+0x345/0x670 [ 87.204839][ T5314] driver_register+0x23a/0x320 [ 87.206895][ T5314] usb_gadget_register_driver_owner+0xf9/0x270 [ 87.209516][ T5314] gadget_dev_desc_UDC_store+0x1c9/0x2f0 [ 87.212033][ T5314] ? __pfx_gadget_dev_desc_UDC_store+0x10/0x10 [ 87.214822][ T5314] configfs_write_iter+0x337/0x430 [ 87.217011][ T5314] vfs_write+0x612/0xba0 [ 87.218887][ T5314] ? __pfx_vfs_write+0x10/0x10 [ 87.220956][ T5314] ? __fget_files+0x2a/0x420 [ 87.222944][ T5314] ksys_write+0x150/0x270 [ 87.224767][ T5314] ? __pfx_ksys_write+0x10/0x10 [ 87.226817][ T5314] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 87.229317][ T5314] do_syscall_64+0x174/0x580 [ 87.231134][ T5314] ? trace_irq_disable+0x3b/0x140 [ 87.233110][ T5314] ? clear_bhb_loop+0x70/0xc0 [ 87.235082][ T5314] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 87.237477][ T5314] RIP: 0033:0x7f882179e0d9 [ 87.239357][ T5314] 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 [ 87.247306][ T5314] RSP: 002b:00007f8822620fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 87.250708][ T5314] RAX: ffffffffffffffda RBX: 00007f8821a25fa0 RCX: 00007f882179e0d9 [ 87.254149][ T5314] RDX: 000000000000000b RSI: 0000200000001400 RDI: 000000000000000b [ 87.257417][ T5314] RBP: 00007f8821835024 R08: 0000000000000000 R09: 0000000000000000 [ 87.260871][ T5314] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 87.265020][ T5314] R13: 00007f8821a26038 R14: 00007f8821a25fa0 R15: 00007fffcde1e898 [ 87.269256][ T5314] [ 87.270898][ T5314] Modules linked in: [ 87.277271][ T5314] ---[ end trace 0000000000000000 ]--- [ 87.293718][ T5314] RIP: 0010:register_netdevice+0x1e94/0x1eb0 [ 87.300300][ T5314] Code: ff 44 89 f1 80 e1 07 38 c1 0f 8c be fb ff ff 4c 89 f7 e8 ff ce 91 f8 e9 b1 fb ff ff e8 95 9a 22 f8 90 0f 0b e8 8d 9a 22 f8 90 <0f> 0b e8 85 9a 22 f8 90 0f 0b e8 7d 9a 22 f8 41 be 42 00 00 00 e9 [ 87.310608][ T5314] RSP: 0018:ffffc9000f237560 EFLAGS: 00010293 [ 87.320842][ T5314] RAX: ffffffff89a47853 RBX: 1ffff92001e46ec0 RCX: ffff888000eea540 [ 87.324529][ T5314] RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000000 [ 87.330983][ T5314] RBP: ffffc9000f2376e0 R08: ffffffff9002a0e7 R09: 1ffffffff200541c [ 87.341540][ T5314] R10: dffffc0000000000 R11: fffffbfff200541d R12: ffff88803fb60f10 [ 87.346108][ T5314] R13: dffffc0000000000 R14: 0000000000000003 R15: ffff88803fb60000 [ 87.350374][ T5314] FS: 00007f88226216c0(0000) GS:ffff88808c549000(0000) knlGS:0000000000000000 [ 87.354786][ T5314] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 87.357738][ T5314] CR2: 00007f1dbaa3e5a3 CR3: 00000000123f8000 CR4: 0000000000352ef0 [ 87.361351][ T5314] Kernel panic - not syncing: Fatal exception [ 87.364451][ T5314] Kernel Offset: disabled [ 87.366330][ T5314] Rebooting in 86400 seconds..