program: mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./config\x00', 0x1ff) mount(0x0, &(0x7f0000000000)='./config\x00', &(0x7f0000000400)='configfs\x00', 0x0, 0x0) mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./config/usb_gadget/g1\x00', 0x1ff) (async) mkdirat(0xffffffffffffff9c, &(0x7f0000000080)='./config/usb_gadget/g1\x00', 0x1ff) mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0x1ff) mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./config/usb_gadget/g1/configs/c.1\x00', 0x1ff) (async) mkdirat(0xffffffffffffff9c, &(0x7f0000000180)='./config/usb_gadget/g1/configs/c.1\x00', 0x1ff) symlinkat(&(0x7f0000000200)='./config/usb_gadget/g1/functions/uac1_legacy.usb0\x00', 0xffffffffffffff9c, &(0x7f0000000280)='./config/usb_gadget/g1/configs/c.1/uac1_legacy.usb0\x00') r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./config/usb_gadget/g1/UDC\x00', 0x1, 0x0) r1 = socket$inet6_mptcp(0xa, 0x1, 0x106) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000040)={'veth1_to_bridge\x00', 0x0}) r3 = socket$inet6_udp(0xa, 0x2, 0x0) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r3, 0x8933, &(0x7f0000000080)={'batadv_slave_0\x00'}) (async) ioctl$ifreq_SIOCGIFINDEX_batadv_hard(r3, 0x8933, &(0x7f0000000080)={'batadv_slave_0\x00', 0x0}) ioctl$sock_inet6_SIOCADDRT(r3, 0x890b, &(0x7f0000000000)={@empty, @loopback, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}, 0x0, 0x0, 0x0, 0x43f, 0x6, 0x80c20048, r4}) (async) ioctl$sock_inet6_SIOCADDRT(r3, 0x890b, &(0x7f0000000000)={@empty, @loopback, @initdev={0xfe, 0x88, '\x00', 0x0, 0x0}, 0x0, 0x0, 0x0, 0x43f, 0x6, 0x80c20048, r4}) r5 = socket$inet6_mptcp(0xa, 0x1, 0x106) ioctl$sock_inet6_SIOCADDRT(r1, 0x890b, &(0x7f0000000540)={@rand_addr=' \x01\x00', @rand_addr=' \x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02', @private1, 0x0, 0x0, 0x0, 0x0, 0x40000000, 0x4400046, r2}) ioctl$sock_SIOCGIFINDEX(r5, 0x8933, &(0x7f0000000000)={'wlan0\x00', 0x0}) r7 = socket$inet6_mptcp(0xa, 0x1, 0x106) ioctl$sock_inet6_SIOCADDRT(r7, 0x890b, &(0x7f0000000540)={@empty, @rand_addr=' \x01\x00', @rand_addr=' \x01\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x6, r6}) (async) ioctl$sock_inet6_SIOCADDRT(r7, 0x890b, &(0x7f0000000540)={@empty, @rand_addr=' \x01\x00', @rand_addr=' \x01\x00', 0x0, 0x0, 0x0, 0x0, 0x0, 0x6, r6}) socket$netlink(0x10, 0x3, 0x0) (async) r8 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route(r8, &(0x7f0000000140)={0x0, 0x0, &(0x7f0000000100)={&(0x7f0000000000)=ANY=[@ANYBLOB="30210e4416dc20b0fc000000000000000a00000080000000000000001400050000000000000000000000000000000002"], 0x30}, 0x1, 0x11}, 0x0) write(r0, &(0x7f0000000400)='dummy_udc.0\n\x00', 0xc) (async) write(r0, &(0x7f0000000400)='dummy_udc.0\n\x00', 0xc) nanosleep(&(0x7f0000000500)={0x0, 0x2faf080}, 0x0) bpf$PROG_LOAD_XDP(0x5, &(0x7f0000000140)={0x6, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x4, '\x00', 0x0, 0x25, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x1003f}, 0x94) setsockopt$SO_ATTACH_FILTER(0xffffffffffffffff, 0x1, 0x1a, &(0x7f0000000240)={0x1, &(0x7f0000000140)=[{0x50, 0x0, 0x0, 0x80000000}]}, 0x10) prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff0000/0x1000)=nil, &(0x7f0000ffd000/0x3000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ff8000/0x4000)=nil, &(0x7f0000ff8000/0x3000)=nil, &(0x7f0000ffb000/0x3000)=nil, &(0x7f0000ffb000/0x3000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ffa000/0x1000)=nil, &(0x7f0000ffa000/0x2000)=nil, 0x0}, 0x68) (async) prctl$PR_SET_MM_MAP(0x23, 0xe, &(0x7f0000000080)={&(0x7f0000ff0000/0x1000)=nil, &(0x7f0000ffd000/0x3000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ffc000/0x4000)=nil, &(0x7f0000ff8000/0x4000)=nil, &(0x7f0000ff8000/0x3000)=nil, &(0x7f0000ffb000/0x3000)=nil, &(0x7f0000ffb000/0x3000)=nil, &(0x7f0000ffc000/0x3000)=nil, &(0x7f0000ffa000/0x1000)=nil, &(0x7f0000ffa000/0x2000)=nil, 0x0}, 0x68) pwrite64(0xffffffffffffffff, &(0x7f0000000140)='2', 0xfdef, 0xfecc) (async) pwrite64(0xffffffffffffffff, &(0x7f0000000140)='2', 0xfdef, 0xfecc) sendmsg$NFT_BATCH(0xffffffffffffffff, &(0x7f0000000080)={0x0, 0x0, 0x0}, 0x24004045) r9 = io_uring_setup(0x899, &(0x7f0000000040)={0x0, 0x3cb1, 0x1c080, 0xa, 0x20002f7}) bpf$BPF_PROG_RAW_TRACEPOINT_LOAD(0x5, &(0x7f0000000040)={0x1c, 0x3, &(0x7f0000000000)=ANY=[@ANYBLOB="2ff000fea0"], 0x0, 0x0, 0x0, 0x0, 0x41100, 0x6e, '\x00', 0x0, 0x0, 0xffffffffffffffff, 0x8, 0x0, 0x0, 0x10, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10, 0x3}, 0x94) io_uring_enter(r9, 0x2219, 0x7721, 0x16, 0x0, 0x0) (async) io_uring_enter(r9, 0x2219, 0x7721, 0x16, 0x0, 0x0) openat$nvme_fabrics(0xffffffffffffff9c, &(0x7f00000000c0), 0x0, 0x0) [ 87.353905][ T4652] Bluetooth: hci0: command tx timeout [ 87.488185][ T5326] configfs-gadget.g1 gadget.0: Hardware params: access 3, format 2, channels 2, rate 48000 [ 87.503123][ T5326] udc dummy_udc.0: failed to start g1: -19 [ 87.519649][ T5326] UDC core: g1: couldn't find an available UDC or it's busy [ 87.526137][ T5327] slab filp start ffff88803f1a7c40 pointer offset 0 size 352 [ 87.528805][ T5327] VFS: Close: file count is 0 (f_op=snd_ctl_f_ops) [ 87.529024][ T5327] ------------[ cut here ]------------ [ 87.533958][ T5327] kernel BUG at fs/open.c:1466! [ 87.538194][ T5327] Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI [ 87.540900][ T5327] CPU: 0 UID: 0 PID: 5327 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 87.544592][ T5327] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 87.548588][ T5327] RIP: 0010:filp_flush+0x184/0x190 [ 87.550718][ T5327] Code: 48 83 c3 48 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 dc 13 ee ff 48 8b 33 48 c7 c7 80 8c fe 8b e8 ed 7b df fe 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 [ 87.558612][ T5327] RSP: 0018:ffffc9000e2b76b8 EFLAGS: 00010246 [ 87.561097][ T5327] RAX: 0000000000000030 RBX: ffff88803f1a7c88 RCX: 3851772b82498100 [ 87.564428][ T5327] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 87.567639][ T5327] RBP: ffffc9000e2b77d8 R08: ffff88801fc24713 R09: 1ffff11003f848e2 [ 87.571020][ T5327] R10: dffffc0000000000 R11: ffffed1003f848e3 R12: dffffc0000000000 [ 87.574413][ T5327] R13: ffff888012d10528 R14: 0000000000000000 R15: 0000000000000003 [ 87.577845][ T5327] FS: 00007f3b28a4d6c0(0000) GS:ffff88808c540000(0000) knlGS:0000000000000000 [ 87.581692][ T5327] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 87.584520][ T5327] CR2: 00007f3b27dd1b00 CR3: 000000001fb3a000 CR4: 0000000000352ef0 [ 87.587963][ T5327] Call Trace: [ 87.589347][ T5327] [ 87.590574][ T5327] filp_close+0x1d/0x40 [ 87.592205][ T5327] gaudio_cleanup+0x54/0xf0 [ 87.594229][ T5327] f_audio_bind+0x4a0/0x630 [ 87.596196][ T5327] ? __pfx_f_audio_bind+0x10/0x10 [ 87.598401][ T5327] ? rcu_is_watching+0x15/0xb0 [ 87.600370][ T5327] ? usb_gadget_set_selfpowered+0xf5/0x260 [ 87.602736][ T5327] usb_add_function+0x2e1/0x9f0 [ 87.604889][ T5327] ? check_remote_wakeup_config+0x58/0x1c0 [ 87.607424][ T5327] configfs_composite_bind+0xde0/0x1410 [ 87.609843][ T5327] ? __pfx_configfs_composite_bind+0x10/0x10 [ 87.612355][ T5327] gadget_bind_driver+0x2ca/0x9e0 [ 87.615253][ T5327] ? __pfx_gadget_bind_driver+0x10/0x10 [ 87.617647][ T5327] really_probe+0x254/0xae0 [ 87.619466][ T5327] __driver_probe_device+0x1e8/0x360 [ 87.621580][ T5327] driver_probe_device+0x4f/0x240 [ 87.623458][ T5327] __driver_attach+0x339/0x600 [ 87.625347][ T5327] bus_for_each_dev+0x23b/0x2c0 [ 87.627276][ T5327] ? __pfx___driver_attach+0x10/0x10 [ 87.629405][ T5327] ? __pfx_bus_for_each_dev+0x10/0x10 [ 87.631622][ T5327] ? do_raw_spin_unlock+0x4d/0x210 [ 87.633764][ T5327] bus_add_driver+0x345/0x670 [ 87.635716][ T5327] driver_register+0x23a/0x320 [ 87.637661][ T5327] usb_gadget_register_driver_owner+0xf9/0x270 [ 87.640105][ T5327] gadget_dev_desc_UDC_store+0x1c9/0x2f0 [ 87.642447][ T5327] ? __pfx_gadget_dev_desc_UDC_store+0x10/0x10 [ 87.645201][ T5327] configfs_write_iter+0x337/0x430 [ 87.647431][ T5327] vfs_write+0x612/0xba0 [ 87.649194][ T5327] ? __pfx_vfs_write+0x10/0x10 [ 87.651053][ T5327] ? __fget_files+0x2a/0x420 [ 87.652900][ T5327] ksys_write+0x150/0x270 [ 87.654813][ T5327] ? __pfx_ksys_write+0x10/0x10 [ 87.656898][ T5327] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 87.659443][ T5327] do_syscall_64+0x174/0x580 [ 87.661167][ T5327] ? clear_bhb_loop+0x40/0x90 [ 87.662846][ T5327] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 87.665272][ T5327] RIP: 0033:0x7f3b27b9e019 [ 87.667175][ T5327] 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 [ 87.675208][ T5327] RSP: 002b:00007f3b28a4cfe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 87.678624][ T5327] RAX: ffffffffffffffda RBX: 00007f3b27e26090 RCX: 00007f3b27b9e019 [ 87.681694][ T5327] RDX: 000000000000000c RSI: 0000200000000400 RDI: 0000000000000003 [ 87.684688][ T5327] RBP: 00007f3b27c3500c R08: 0000000000000000 R09: 0000000000000000 [ 87.687703][ T5327] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 87.690746][ T5327] R13: 00007f3b27e26128 R14: 00007f3b27e26090 R15: 00007ffef9c9dc58 [ 87.693938][ T5327] [ 87.695228][ T5327] Modules linked in: [ 87.698751][ T5327] ---[ end trace 0000000000000000 ]--- [ 87.708997][ T5327] RIP: 0010:filp_flush+0x184/0x190 [ 87.711195][ T5327] Code: 48 83 c3 48 48 89 d8 48 c1 e8 03 42 80 3c 20 00 74 08 48 89 df e8 dc 13 ee ff 48 8b 33 48 c7 c7 80 8c fe 8b e8 ed 7b df fe 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 [ 87.719778][ T5327] RSP: 0018:ffffc9000e2b76b8 EFLAGS: 00010246 [ 87.722510][ T5327] RAX: 0000000000000030 RBX: ffff88803f1a7c88 RCX: 3851772b82498100 [ 87.726678][ T5327] RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000 [ 87.730145][ T5327] RBP: ffffc9000e2b77d8 R08: ffff88801fc24713 R09: 1ffff11003f848e2 [ 87.733828][ T5327] R10: dffffc0000000000 R11: ffffed1003f848e3 R12: dffffc0000000000 [ 87.737186][ T5327] R13: ffff888012d10528 R14: 0000000000000000 R15: 0000000000000003 [ 87.740746][ T5327] FS: 00007f3b28a4d6c0(0000) GS:ffff88808c540000(0000) knlGS:0000000000000000 [ 87.745532][ T5327] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 87.748470][ T5327] CR2: 00007f3b27d5bab0 CR3: 000000001fb3a000 CR4: 0000000000352ef0 [ 87.751988][ T5327] Kernel panic - not syncing: Fatal exception [ 87.754894][ T5327] Kernel Offset: disabled [ 87.756737][ T5327] Rebooting in 86400 seconds..