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 5a414067 P4D 5a414067 PUD a7aa5067 PMD 0 Oops: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 30037 Comm: syz-executor.5 Not tainted 5.7.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__read_once_size include/linux/compiler.h:252 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x3f/0x60 kernel/kcov.c:202 Code: c2 00 01 ff 00 74 11 f7 c2 00 01 00 00 74 35 83 b9 04 14 00 00 00 74 2c 8b 91 e0 13 00 00 83 fa 02 75 21 48 8b 91 e8 13 00 00 <48> 8b 32 48 8d 7e 01 8b 89 e4 13 00 00 48 39 cf 73 08 48 89 44 f2 RSP: 0018:ffffc900163f7598 EFLAGS: 00010246 RAX: ffffffff839f8336 RBX: dffffc0000000000 RCX: ffff8880952c0180 RDX: 0000000000000000 RSI: ffffffff8903523f RDI: ffffffff88e90cfe RBP: ffffc900163f76e0 R08: ffffffff817a4660 R09: fffffbfff129ebe7 R10: fffffbfff129ebe7 R11: 0000000000000000 R12: 0000000000000001 R13: ffff8880a51b4918 R14: ffffffff8903523f R15: ffffffff88e90cfe FS: 00007f31d9356700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000005a415000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: check_preemption_disabled+0x16/0x240 lib/smp_processor_id.c:13 __schedule+0x2e/0xc40 kernel/sched/core.c:4082 preempt_schedule_common kernel/sched/core.c:4312 [inline] preempt_schedule+0xc8/0x110 kernel/sched/core.c:4337 preempt_schedule_thunk+0x16/0x18 arch/x86/entry/thunk_64.S:50 __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline] _raw_spin_unlock_irq+0x73/0x80 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+0x9cd/0x1b50 drivers/usb/core/hcd.c:1543 usb_start_wait_urb+0xc3/0x2a0 drivers/usb/core/message.c:58 usb_internal_control_msg drivers/usb/core/message.c:102 [inline] usb_control_msg+0x24a/0x420 drivers/usb/core/message.c:153 hub_power_on drivers/usb/core/hub.c:916 [inline] hub_activate+0x3d2/0x1f40 drivers/usb/core/hub.c:1076 hub_configure drivers/usb/core/hub.c:1680 [inline] hub_probe+0x1fc1/0x2700 drivers/usb/core/hub.c:1882 usb_probe_interface+0x614/0xac0 drivers/usb/core/driver.c:374 really_probe+0x761/0xf60 drivers/base/dd.c:524 driver_probe_device+0xe6/0x230 drivers/base/dd.c:697 bus_for_each_drv+0x108/0x170 drivers/base/bus.c:431 __device_attach+0x20c/0x3a0 drivers/base/dd.c:870 proc_ioctl+0x447/0x610 drivers/usb/core/devio.c:2245 usbdev_do_ioctl drivers/usb/core/devio.c:2280 [inline] usbdev_ioctl+0x3b2b/0x6520 drivers/usb/core/devio.c:2696 vfs_ioctl fs/ioctl.c:47 [inline] ksys_ioctl fs/ioctl.c:771 [inline] __do_sys_ioctl fs/ioctl.c:780 [inline] __se_sys_ioctl+0xf9/0x160 fs/ioctl.c:778 do_syscall_64+0xf3/0x1b0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x45ca59 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:00007f31d9355c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00000000004f0ca0 RCX: 000000000045ca59 RDX: 0000000020000040 RSI: 00000000c0105512 RDI: 0000000000000005 RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000005eb R14: 00000000004c8b98 R15: 00007f31d93566d4 Modules linked in: CR2: 0000000000000000 ---[ end trace a7cfbafdb6d24065 ]--- RIP: 0010:__read_once_size include/linux/compiler.h:252 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x3f/0x60 kernel/kcov.c:202 Code: c2 00 01 ff 00 74 11 f7 c2 00 01 00 00 74 35 83 b9 04 14 00 00 00 74 2c 8b 91 e0 13 00 00 83 fa 02 75 21 48 8b 91 e8 13 00 00 <48> 8b 32 48 8d 7e 01 8b 89 e4 13 00 00 48 39 cf 73 08 48 89 44 f2 RSP: 0018:ffffc900163f7598 EFLAGS: 00010246 RAX: ffffffff839f8336 RBX: dffffc0000000000 RCX: ffff8880952c0180 RDX: 0000000000000000 RSI: ffffffff8903523f RDI: ffffffff88e90cfe RBP: ffffc900163f76e0 R08: ffffffff817a4660 R09: fffffbfff129ebe7 R10: fffffbfff129ebe7 R11: 0000000000000000 R12: 0000000000000001 R13: ffff8880a51b4918 R14: ffffffff8903523f R15: ffffffff88e90cfe FS: 00007f31d9356700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000005a415000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400