program: sendmsg$kcm(0xffffffffffffffff, &(0x7f00000002c0)={0x0, 0x0, &(0x7f0000000040)=[{&(0x7f00000000c0)="1400000016000b63", 0x8}], 0x1}, 0x0) syz_usb_connect(0x0, 0x3f, &(0x7f00000001c0)=ANY=[@ANYBLOB="11010000733336088dee1edb23610000000109022d0101100000000904000003fe03010009cd8d1f0002000000090505", @ANYRESDEC], 0x0) r0 = syz_open_dev$usbfs(&(0x7f0000000180), 0x10000001d, 0x8041) ioctl$USBDEVFS_SUBMITURB(r0, 0x8038550a, &(0x7f0000000240)=@urb_type_iso={0x0, {0x5}, 0x3, 0x80, 0x0, 0x0, 0x2, 0x6512c6de, 0x2, 0x8, 0x100, 0x0, [{0x1ff, 0x3, 0x1}, {0x80000001, 0xfffffff9, 0x7}]}) r1 = syz_open_dev$evdev(&(0x7f0000000000), 0x0, 0x0) syz_usb_disconnect(r1) syz_open_dev$usbmon(&(0x7f0000000000), 0x5dc0, 0x48502) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./mysys\x00', 0x1ff) mount(0x0, &(0x7f0000000080)='./mysys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r2 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./mysys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0) write(r2, &(0x7f0000000200)='dummy_hcd.0', 0xb) r3 = socket$inet_tcp(0x2, 0x1, 0x0) setsockopt$inet_tcp_int(r3, 0x6, 0x210000000013, &(0x7f00000000c0)=0x100000001, 0x4) bind$inet(r3, &(0x7f0000000080)={0x2, 0x4e21, @multicast1}, 0x10) connect$inet(r3, &(0x7f0000000180)={0x2, 0x4e21, @dev={0xac, 0x14, 0x14, 0x42}}, 0x10) setsockopt$inet_tcp_TCP_REPAIR_OPTIONS(r3, 0x6, 0x16, &(0x7f0000000000)=[@mss, @sack_perm, @window={0x3, 0x7}, @mss={0x2, 0xfff}, @window={0x3, 0x0, 0x401}, @window], 0x6) setsockopt$inet_tcp_TCP_CONGESTION(r3, 0x6, 0xd, &(0x7f0000000040)='htcp', 0x4) r4 = bpf$MAP_CREATE_CONST_STR(0x0, &(0x7f0000000240)={0x2, 0x4, 0x8, 0x1, 0x80, 0x0, 0x0, '\x00', 0x0, 0x0}, 0x48) bpf$PROG_LOAD(0x5, &(0x7f0000000840)={0x8, 0x1c, &(0x7f0000000d80)=@ringbuf={{0x18, 0x8, 0x0, 0x0, 0x14}, {{0x18, 0x1, 0x1, 0x0, r4}, {0x7, 0x0, 0xb, 0x6}, {0x7, 0x0, 0xb, 0x3, 0x0, 0x0, 0xd00}, {0x85, 0x0, 0x0, 0x5}, {0x4, 0x1, 0xb, 0x9, 0xa}}, {{0x5, 0x0, 0x3}}, [@snprintf={{0x7, 0x0, 0xb, 0x2}, {0x3, 0x3, 0x3, 0xa, 0x6}, {0x5, 0x0, 0xb, 0x9}, {0x3, 0x3, 0x3, 0xa, 0xa}, {0x7, 0x1, 0xb, 0x7, 0x8}, {0x7, 0x0, 0x0, 0x8, 0x0, 0x0, 0xfffffdff}, {0x7, 0x1, 0xb, 0x4, 0x2}, {0x7, 0x0, 0x0, 0x6}, {0x4, 0x0, 0x7}, {0x18, 0x6, 0x2, 0x0, r4}, {}, {0x46, 0x8, 0xfff0, 0x76}}], {{0x7, 0x1, 0xb, 0x8}, {0x6, 0x0, 0x5, 0x8}, {0x85, 0x0, 0x0, 0x5}}}, &(0x7f0000000980)='GPL\x00', 0x0, 0x0, 0x0, 0x0, 0x0, '\x00', 0x0, @cgroup_skb, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x90) setsockopt$inet_tcp_TCP_REPAIR(r3, 0x6, 0x13, &(0x7f00000001c0), 0x4) r5 = openat$nullb(0xffffffffffffff9c, &(0x7f0000000000), 0xa4242, 0x0) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x2000005, 0x38011, r5, 0x0) madvise(&(0x7f0000000000/0xc00000)=nil, 0xc00000, 0x2) syz_open_procfs(0x0, &(0x7f0000000080)='net/dev_mcast\x00') sendto$inet(r3, &(0x7f0000000000), 0xffffffffffffff94, 0xb, 0x0, 0x0) ioctl$EVIOCSKEYCODE_V2(r1, 0x40284504, &(0x7f0000000080)={0x9, 0x4, 0x5, 0x100, "dc0729a5b1072f8c7563a977a319458c5dfbd639cc901bce6b0deb1ed16cc4a7"}) syz_usb_connect$printer(0x4, 0x2d, &(0x7f0000000500)=ANY=[], 0x0) ioctl$EVIOCRMFF(r1, 0x40085507, &(0x7f00000000c0)=0x18) [ 94.617171][ T5283] Bluetooth: hci0: command tx timeout [ 94.967120][ T5307] usb 5-1: new high-speed USB device number 2 using dummy_hcd [ 95.116606][ T5307] usb 5-1: Using ep0 maxpacket: 8 [ 95.121872][ T5307] usb 5-1: config index 0 descriptor too short (expected 301, got 45) [ 95.125372][ T5307] usb 5-1: config 16 has an invalid descriptor of length 52, skipping remainder of the config [ 95.130216][ T5307] usb 5-1: config 16 interface 0 altsetting 0 endpoint 0x5 has an invalid bInterval 52, changing to 7 [ 95.134712][ T5307] usb 5-1: config 16 interface 0 altsetting 0 endpoint 0x5 has invalid maxpacket 9272, setting to 1024 [ 95.139971][ T5307] usb 5-1: config 16 interface 0 altsetting 0 has 1 endpoint descriptor, different from the interface descriptor's value: 3 [ 95.145232][ T5307] usb 5-1: New USB device found, idVendor=ee8d, idProduct=db1e, bcdDevice=61.23 [ 95.149287][ T5307] usb 5-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 95.170093][ T5307] usbtmc 5-1:16.0: bulk endpoints not found [ 95.365117][ T5322] usb 5-1: usbfs: process 5322 (syz.0.0) did not claim interface 0 before use [ 95.575713][ T5322] dummy_hcd dummy_hcd.0: remove, state 1 [ 95.580083][ T5322] usb usb5: USB disconnect, device number 1 [ 95.582975][ T5322] usb 5-1: USB disconnect, device number 2 [ 95.665709][ T5322] dummy_hcd dummy_hcd.0: stopped [ 95.676244][ T5322] dummy_hcd dummy_hcd.0: USB bus 5 deregistered [ 96.628955][ T5283] Bluetooth: hci0: command tx timeout [ 97.766741][ T5323] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI [ 97.771985][ T5323] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 97.775540][ T5323] CPU: 0 UID: 0 PID: 5323 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 97.779360][ T5323] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 97.783624][ T5323] RIP: 0010:set_link_state+0x27/0x1000 [ 97.786173][ T5323] Code: 90 90 90 55 41 57 41 56 41 55 41 54 53 48 83 ec 38 49 89 fe 48 bb 00 00 00 00 00 fc ff df e8 80 54 0e fa 4c 89 f0 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 f7 e8 4b 82 7d fa 49 8b 16 4d 8d a6 a3 00 [ 97.794815][ T5323] RSP: 0018:ffffc9000e337780 EFLAGS: 00010046 [ 97.797758][ T5323] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff888033efca80 [ 97.801077][ T5323] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 97.804376][ T5323] RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004 [ 97.807726][ T5323] R10: dffffc0000000000 R11: fffff52001c66eec R12: 0000000000000246 [ 97.811097][ T5323] R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000 [ 97.814522][ T5323] FS: 0000000000000000(0000) GS:ffff88808c543000(0000) knlGS:0000000000000000 [ 97.818329][ T5323] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 97.821079][ T5323] CR2: 00002000000000c0 CR3: 000000004fe6a000 CR4: 0000000000352ef0 [ 97.824390][ T5323] Call Trace: [ 97.825798][ T5323] [ 97.827011][ T5323] ? rcu_is_watching+0x15/0xb0 [ 97.829002][ T5323] ? __pfx_dummy_pullup+0x10/0x10 [ 97.831043][ T5323] dummy_pullup+0xc4/0x120 [ 97.832840][ T5323] ? __pfx_dummy_pullup+0x10/0x10 [ 97.834927][ T5323] usb_gadget_disconnect_locked+0x126/0x480 [ 97.837438][ T5323] gadget_unbind_driver+0xc2/0x410 [ 97.839630][ T5323] ? __pfx_gadget_unbind_driver+0x10/0x10 [ 97.841875][ T5323] device_release_driver_internal+0x48b/0x880 [ 97.844499][ T5323] driver_detach+0x1f3/0x2d0 [ 97.846507][ T5323] bus_remove_driver+0x226/0x320 [ 97.848580][ T5323] usb_gadget_unregister_driver+0x4e/0x70 [ 97.850802][ T5323] raw_release+0xd7/0x260 [ 97.852648][ T5323] ? __pfx_raw_release+0x10/0x10 [ 97.854757][ T5323] __fput+0x418/0xa50 [ 97.856454][ T5323] task_work_run+0x1d9/0x270 [ 97.858411][ T5323] ? __pfx_task_work_run+0x10/0x10 [ 97.860624][ T5323] ? do_raw_spin_unlock+0x4d/0x210 [ 97.862651][ T5323] do_exit+0x73a/0x2360 [ 97.864381][ T5323] ? __pfx_do_exit+0x10/0x10 [ 97.866296][ T5323] ? do_raw_spin_lock+0x12b/0x2f0 [ 97.868403][ T5323] do_group_exit+0x22d/0x2f0 [ 97.870527][ T5323] ? _raw_spin_unlock_irq+0x23/0x50 [ 97.873028][ T5323] get_signal+0x121b/0x12c0 [ 97.874780][ T5323] arch_do_signal_or_restart+0xbb/0x860 [ 97.877097][ T5323] ? __pfx_arch_do_signal_or_restart+0x10/0x10 [ 97.879709][ T5323] exit_to_user_mode_loop+0x104/0x730 [ 97.881901][ T5323] ? rcu_is_watching+0x15/0xb0 [ 97.883812][ T5323] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 97.886057][ T5323] do_syscall_64+0x353/0x580 [ 97.887768][ T5323] ? clear_bhb_loop+0x40/0x90 [ 97.889719][ T5323] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 97.892034][ T5323] RIP: 0033:0x7fa81c39de99 [ 97.894000][ T5323] Code: Unable to access opcode bytes at 0x7fa81c39de6f. [ 97.897100][ T5323] RSP: 002b:00007fa81d254fe8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 97.901460][ T5323] RAX: 0000000000004180 RBX: 00007fa81c626090 RCX: 00007fa81c39de99 [ 97.904804][ T5323] RDX: ffffffffffffff94 RSI: 0000200000000000 RDI: 0000000000000007 [ 97.908285][ T5323] RBP: 00007fa81c433eaf R08: 0000000000000000 R09: 0000000000000000 [ 97.911543][ T5323] R10: 000000000000000b R11: 0000000000000246 R12: 0000000000000000 [ 97.915408][ T5323] R13: 00007fa81c626128 R14: 00007fa81c626090 R15: 00007ffcdf9e9878 [ 97.919198][ T5323] [ 97.920496][ T5323] Modules linked in: [ 97.922192][ T5323] ---[ end trace 0000000000000000 ]--- [ 97.924551][ T5323] RIP: 0010:set_link_state+0x27/0x1000 [ 97.926950][ T5323] Code: 90 90 90 55 41 57 41 56 41 55 41 54 53 48 83 ec 38 49 89 fe 48 bb 00 00 00 00 00 fc ff df e8 80 54 0e fa 4c 89 f0 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 f7 e8 4b 82 7d fa 49 8b 16 4d 8d a6 a3 00 [ 97.934781][ T5323] RSP: 0018:ffffc9000e337780 EFLAGS: 00010046 [ 97.937393][ T5323] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff888033efca80 [ 97.940733][ T5323] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 97.943996][ T5323] RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004 [ 97.947380][ T5323] R10: dffffc0000000000 R11: fffff52001c66eec R12: 0000000000000246 [ 97.950621][ T5323] R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000 [ 97.953806][ T5323] FS: 0000000000000000(0000) GS:ffff88808c543000(0000) knlGS:0000000000000000 [ 97.957160][ T5323] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 97.959618][ T5323] CR2: 00002000000000c0 CR3: 000000004fe6a000 CR4: 0000000000352ef0 [ 97.962905][ T5323] Kernel panic - not syncing: Fatal exception [ 97.965853][ T5323] Kernel Offset: disabled [ 97.967688][ T5323] Rebooting in 86400 seconds..