program: syz_usb_connect(0x0, 0x24, &(0x7f0000000000)=ANY=[@ANYBLOB="1201000297ff8208582005109bc10102030109021200010100800009048f0000bf575a00"], 0x0) (async) mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./mysys\x00', 0x1ee) (async) mount(&(0x7f0000000040)=@filename='none\x00', &(0x7f0000000080)='./mysys\x00', &(0x7f00000000c0)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000100)='./mysys/bus/platform/drivers/dummy_hcd/unbind\x00', 0x1, 0x0) write(r0, &(0x7f0000000200)='dummy_hcd.0\x00', 0xb) (async, rerun: 64) close(r0) (async, rerun: 64) r1 = dup2(0xffffffffffffffff, r0) ioctl$COMEDI_CMDTEST(r1, 0x8050640a, &(0x7f0000000240)={0x9, 0x40, 0x2, 0x3, 0x0, 0x92, 0x40, 0x5, 0x2, 0x884e, 0x20, 0x7e7d888f, &(0x7f0000000140)=[0x2, 0x0, 0xc, 0x289, 0x73, 0x7], 0x6, &(0x7f0000000180)="6c46460c08832a864f9ed8e5507222ecfc3343b1c385e55505f17afb201005e83e8aae22c05dd0f26553e35e86bcc66fb2e12fed7041cffbb548a5ea9b488e0bb6643d10980cd800a4fb410832440e463a4187ca", 0x54}) (async, rerun: 32) r2 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./mysys/bus/platform/drivers/dummy_hcd/bind\x00', 0x1, 0x0) (rerun: 32) write(r2, &(0x7f0000000400)='dummy_hcd.0\x00', 0xb) (async) r3 = socket$nl_generic(0x10, 0x3, 0x10) r4 = socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nl80211(&(0x7f00000003c0), r4) (async) ioctl$sock_SIOCGIFINDEX_80211(r3, 0x8933, &(0x7f00000000c0)={'wlan1\x00', 0x0}) sendmsg$NL80211_CMD_SET_INTERFACE(r3, &(0x7f0000000100)={0x0, 0x0, &(0x7f0000000140)={&(0x7f0000000400)={0x24, r5, 0x5, 0x0, 0x0, {{}, {@val={0x8, 0x3, r6}, @void}}, [@NL80211_ATTR_IFTYPE={0x8, 0x5, 0x9}]}, 0x24}}, 0x0) (async) r7 = socket$nl_generic(0x10, 0x3, 0x10) r8 = syz_genetlink_get_family_id$nl80211(&(0x7f0000000000), 0xffffffffffffffff) (async) ioctl$sock_SIOCGIFINDEX_80211(r7, 0x8933, &(0x7f0000000240)={'wlan1\x00', 0x0}) sendmsg$NL80211_CMD_SET_MCAST_RATE(r7, &(0x7f0000000340)={0x0, 0x0, &(0x7f0000000300)={&(0x7f0000000280)={0x1c, r8, 0x1, 0x0, 0x25dfdbfe, {{0x53}, {@val={0x8, 0x3, r9}, @void}}}, 0x1c}}, 0x0) (async) syz_usb_connect$printer(0x5, 0x36, &(0x7f00000002c0)={{0x12, 0x1, 0x300, 0x0, 0x0, 0x0, 0xff, 0x525, 0xa4a8, 0x40, 0x1, 0x2, 0x3, 0x1, [{{0x9, 0x2, 0x24, 0x1, 0x1, 0x2, 0x80, 0x8, "", [{{0x9, 0x4, 0x0, 0x3, 0x2, 0x7, 0x1, 0x2, 0x4, "", {{{0x9, 0x5, 0x1, 0x2, 0x200, 0x6, 0x80, 0x1}}, [{{0x9, 0x5, 0x82, 0x2, 0x40, 0x8, 0x1, 0x4}}]}}}]}}]}}, &(0x7f0000000600)={0xa, &(0x7f0000000340)={0xa, 0x6, 0x40, 0x6, 0x8, 0xf, 0x20, 0xff}, 0x21, &(0x7f0000000380)={0x5, 0xf, 0x21, 0x1, [@ssp_cap={0x1c, 0x10, 0xa, 0x3, 0x4, 0xf, 0xf000, 0x6, [0xff00, 0xff000f, 0xffc0, 0x3f]}]}, 0x4, [{0x88, &(0x7f0000000440)=@string={0x88, 0x3, "1bcdca79bb0d7322a5b21a5bd4048f3ef2fde7ee2867988dfd4710aab146553ab3a862f25f32264c6cacb804db14c438a37a80f3060dafbd6d0003758fcb0c1fce446117a28237294485ca966b161ca26b125f865bd24623e54b6fc8fd6559a0b9c695e79303c913636d8e3dd55de5831350698345d0a027da74884ee1f1b658496feace6d3c"}}, {0xb, &(0x7f0000000500)=@string={0xb, 0x3, "d2fef56145f7b450a0"}}, {0x4, &(0x7f0000000540)=@lang_id={0x4, 0x3, 0x41e}}, {0x5e, &(0x7f0000000580)=@string={0x5e, 0x3, "c83b2b4382ac8ee3c006a6b5b9fb4961d2ee957043fa91a16868714a832cffc97a98c3e01915d68396bda7919a399db8ff425da12f0fb9b1b78a2b1b023e09b8e75a67cc9f0decb6ba044b953752511da5c14e3e63bfcb7024d9d46e"}}]}) close(r2) [ 105.355095][ T5330] dummy_hcd dummy_hcd.0: remove, state 4 [ 105.358693][ T5330] usb usb5: USB disconnect, device number 1 [ 105.375377][ T4653] Bluetooth: hci0: command tx timeout [ 105.470783][ T5330] dummy_hcd dummy_hcd.0: stopped [ 105.472742][ T5330] dummy_hcd dummy_hcd.0: USB bus 5 deregistered [ 105.577550][ T5330] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN NOPTI [ 105.582901][ T5330] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [ 105.586706][ T5330] CPU: 0 UID: 0 PID: 5330 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) [ 105.590930][ T5330] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 [ 105.595983][ T5330] RIP: 0010:set_link_state+0x27/0x1000 [ 105.598517][ T5330] 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 b1 0e fa 4c 89 f0 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 f7 e8 0b e4 7d fa 49 8b 16 4d 8d a6 a3 00 [ 105.607744][ T5330] RSP: 0000:ffffc9000f907780 EFLAGS: 00010046 [ 105.611054][ T5330] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff888000fe2540 [ 105.614719][ T5330] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 105.618197][ T5330] RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004 [ 105.621705][ T5330] R10: dffffc0000000000 R11: fffff52001f20eec R12: 0000000000000246 [ 105.625644][ T5330] R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000 [ 105.629299][ T5330] FS: 0000000000000000(0000) GS:ffff88808c540000(0000) knlGS:0000000000000000 [ 105.633628][ T5330] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 105.637329][ T5330] CR2: 00007ffec321c030 CR3: 000000005095a000 CR4: 0000000000352ef0 [ 105.640986][ T5330] Call Trace: [ 105.642411][ T5330] [ 105.643737][ T5330] ? rcu_is_watching+0x15/0xb0 [ 105.645921][ T5330] ? __pfx_dummy_pullup+0x10/0x10 [ 105.648286][ T5330] dummy_pullup+0xc4/0x120 [ 105.650643][ T5330] ? __pfx_dummy_pullup+0x10/0x10 [ 105.653183][ T5330] usb_gadget_disconnect_locked+0x126/0x480 [ 105.655887][ T5330] gadget_unbind_driver+0xc2/0x410 [ 105.658189][ T5330] ? __pfx_gadget_unbind_driver+0x10/0x10 [ 105.660570][ T5330] device_release_driver_internal+0x48b/0x880 [ 105.663760][ T5330] driver_detach+0x1f3/0x2d0 [ 105.666367][ T5330] bus_remove_driver+0x226/0x320 [ 105.668809][ T5330] usb_gadget_unregister_driver+0x4e/0x70 [ 105.671349][ T5330] raw_release+0xd7/0x260 [ 105.673322][ T5330] ? __pfx_raw_release+0x10/0x10 [ 105.675803][ T5330] __fput+0x418/0xa50 [ 105.678008][ T5330] task_work_run+0x1d9/0x270 [ 105.680603][ T5330] ? __pfx_task_work_run+0x10/0x10 [ 105.683198][ T5330] ? do_raw_spin_unlock+0x4d/0x210 [ 105.685745][ T5330] do_exit+0x73a/0x2360 [ 105.687803][ T5330] ? __pfx_do_exit+0x10/0x10 [ 105.690066][ T5330] ? preempt_schedule_thunk+0x16/0x40 [ 105.692738][ T5330] ? preempt_schedule_common+0x82/0xd0 [ 105.695493][ T5330] do_group_exit+0x22d/0x2f0 [ 105.697873][ T5330] get_signal+0x121b/0x12c0 [ 105.700247][ T5330] arch_do_signal_or_restart+0xbb/0x860 [ 105.702867][ T5330] ? __pfx___fput_deferred+0x10/0x10 [ 105.705524][ T5330] ? __pfx_arch_do_signal_or_restart+0x10/0x10 [ 105.708604][ T5330] ? ksys_write+0x242/0x270 [ 105.710924][ T5330] exit_to_user_mode_loop+0x104/0x730 [ 105.713632][ T5330] ? rcu_is_watching+0x15/0xb0 [ 105.715864][ T5330] ? entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 105.718492][ T5330] do_syscall_64+0x353/0x580 [ 105.720612][ T5330] ? trace_irq_disable+0x3b/0x140 [ 105.723056][ T5330] ? clear_bhb_loop+0x40/0x90 [ 105.725491][ T5330] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 105.728431][ T5330] RIP: 0033:0x7fae2159e019 [ 105.730676][ T5330] Code: Unable to access opcode bytes at 0x7fae2159dfef. [ 105.733964][ T5330] RSP: 002b:00007fae2242ffe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 [ 105.737943][ T5330] RAX: 000000000000000b RBX: 00007fae21826090 RCX: 00007fae2159e019 [ 105.741269][ T5330] RDX: 000000000000000b RSI: 0000200000000200 RDI: 0000000000000004 [ 105.744589][ T5330] RBP: 00007fae2163500c R08: 0000000000000000 R09: 0000000000000000 [ 105.748147][ T5330] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 [ 105.751549][ T5330] R13: 00007fae21826128 R14: 00007fae21826090 R15: 00007ffdcd805798 [ 105.754875][ T5330] [ 105.756288][ T5330] Modules linked in: [ 105.757994][ T5330] ---[ end trace 0000000000000000 ]--- [ 105.760379][ T5330] RIP: 0010:set_link_state+0x27/0x1000 [ 105.762773][ T5330] 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 b1 0e fa 4c 89 f0 48 c1 e8 03 <80> 3c 18 00 74 08 4c 89 f7 e8 0b e4 7d fa 49 8b 16 4d 8d a6 a3 00 [ 105.771138][ T5330] RSP: 0000:ffffc9000f907780 EFLAGS: 00010046 [ 105.774114][ T5330] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: ffff888000fe2540 [ 105.777629][ T5330] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 105.781216][ T5330] RBP: 0000000000000000 R08: 0000000000000003 R09: 0000000000000004 [ 105.785182][ T5330] R10: dffffc0000000000 R11: fffff52001f20eec R12: 0000000000000246 [ 105.788843][ T5330] R13: dffffc0000000000 R14: 0000000000000000 R15: 0000000000000000 [ 105.792576][ T5330] FS: 0000000000000000(0000) GS:ffff88808c540000(0000) knlGS:0000000000000000 [ 105.797145][ T5330] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 105.800091][ T5330] CR2: 00007ffec321c030 CR3: 000000005095a000 CR4: 0000000000352ef0 [ 105.803482][ T5330] Kernel panic - not syncing: Fatal exception [ 105.806423][ T5330] Kernel Offset: disabled [ 105.808229][ T5330] Rebooting in 86400 seconds..