hub 9-0:1.0: USB hub found hub 9-0:1.0: 8 ports detected BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 5c3c3067 P4D 5c3c3067 PUD 5554a067 PMD 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 13667 Comm: syz-executor.2 Not tainted 5.7.0-rc7-next-20200529-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__sanitizer_cov_trace_pc+0x43/0x60 kernel/kcov.c:202 Code: 24 74 0f 80 e6 01 74 35 8b 90 0c 14 00 00 85 d2 74 2b 8b 90 e8 13 00 00 83 fa 02 75 20 48 8b 88 f0 13 00 00 8b 80 ec 13 00 00 <48> 8b 11 48 83 c2 01 48 39 d0 76 07 48 89 34 d1 48 89 11 c3 66 0f RSP: 0018:ffffc90006077248 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000002 RSI: ffffffff87dfafd5 RDI: 0000000000000001 RBP: ffffc90006077320 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 R13: 0000000000037e00 R14: 0000000000037e00 R15: ffff8880905cda80 FS: 00007f10aea96700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000000920b8000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: debug_smp_processor_id+0x5/0x20 lib/smp_processor_id.c:59 __schedule+0x7b/0x1f80 kernel/sched/core.c:4081 preempt_schedule_common+0x4a/0xc0 kernel/sched/core.c:4311 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:40 __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline] _raw_spin_unlock_irq+0x67/0x80 kernel/locking/spinlock.c:199 spin_unlock_irq include/linux/spinlock.h:403 [inline] rh_call_control drivers/usb/core/hcd.c:739 [inline] rh_urb_enqueue drivers/usb/core/hcd.c:842 [inline] usb_hcd_submit_urb+0x8dc/0x1f50 drivers/usb/core/hcd.c:1543 usb_submit_urb+0x6e5/0x13b0 drivers/usb/core/urb.c:570 usb_start_wait_urb+0x101/0x2b0 drivers/usb/core/message.c:58 usb_internal_control_msg drivers/usb/core/message.c:102 [inline] usb_control_msg+0x31c/0x4a0 drivers/usb/core/message.c:153 set_port_feature+0x69/0x90 drivers/usb/core/hub.c:432 hub_power_on+0xca/0x280 drivers/usb/core/hub.c:917 hub_activate+0x10d8/0x16c0 drivers/usb/core/hub.c:1076 hub_configure drivers/usb/core/hub.c:1680 [inline] hub_probe.cold+0x226c/0x2274 drivers/usb/core/hub.c:1882 usb_probe_interface+0x305/0x7a0 drivers/usb/core/driver.c:374 really_probe+0x281/0x6d0 drivers/base/dd.c:525 driver_probe_device+0xfe/0x1d0 drivers/base/dd.c:701 __device_attach_driver+0x1c2/0x220 drivers/base/dd.c:807 bus_for_each_drv+0x162/0x1e0 drivers/base/bus.c:431 __device_attach+0x21a/0x360 drivers/base/dd.c:873 proc_ioctl drivers/usb/core/devio.c:2254 [inline] proc_ioctl+0x5b4/0x6b0 drivers/usb/core/devio.c:2205 proc_ioctl_default drivers/usb/core/devio.c:2289 [inline] usbdev_do_ioctl drivers/usb/core/devio.c:2645 [inline] usbdev_ioctl+0x2a57/0x3240 drivers/usb/core/devio.c:2705 vfs_ioctl fs/ioctl.c:48 [inline] ksys_ioctl+0x11a/0x180 fs/ioctl.c:753 __do_sys_ioctl fs/ioctl.c:762 [inline] __se_sys_ioctl fs/ioctl.c:760 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:760 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:359 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45cb09 Code: 0d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f10aea95c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00000000004f11a0 RCX: 000000000045cb09 RDX: 0000000020000040 RSI: 00000000c0105512 RDI: 0000000000000006 RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000005ef R14: 00000000004c8c91 R15: 00007f10aea966d4 Modules linked in: CR2: 0000000000000000 ---[ end trace d547f704bfc6d5b3 ]--- RIP: 0010:__sanitizer_cov_trace_pc+0x43/0x60 kernel/kcov.c:202 Code: 24 74 0f 80 e6 01 74 35 8b 90 0c 14 00 00 85 d2 74 2b 8b 90 e8 13 00 00 83 fa 02 75 20 48 8b 88 f0 13 00 00 8b 80 ec 13 00 00 <48> 8b 11 48 83 c2 01 48 39 d0 76 07 48 89 34 d1 48 89 11 c3 66 0f RSP: 0018:ffffc90006077248 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000002 RSI: ffffffff87dfafd5 RDI: 0000000000000001 RBP: ffffc90006077320 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 R13: 0000000000037e00 R14: 0000000000037e00 R15: ffff8880905cda80 FS: 00007f10aea96700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000000920b8000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400