./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1778810841 <...> Warning: Permanently added '10.128.1.151' (ECDSA) to the list of known hosts. execve("./syz-executor1778810841", ["./syz-executor1778810841"], 0x7ffc56891400 /* 10 vars */) = 0 brk(NULL) = 0x5555567cd000 brk(0x5555567cdc40) = 0x5555567cdc40 arch_prctl(ARCH_SET_FS, 0x5555567cd300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1778810841", 4096) = 28 brk(0x5555567eec40) = 0x5555567eec40 brk(0x5555567ef000) = 0x5555567ef000 mprotect(0x7f54401ca000, 16384, PROT_READ) = 0 mmap(0x1ffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffff000 mmap(0x20000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x20000000 mmap(0x21000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x21000000 openat(AT_FDCWD, "/dev/raw-gadget", O_RDWR) = 3 ioctl(3, USB_RAW_IOCTL_INIT, 0x7ffd2d780690) = 0 ioctl(3, UI_DEV_CREATE or USB_RAW_IOCTL_RUN, 0) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd2d780690) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd2d780690) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd2d77f680) = 18 [ 57.949393][ T4407] usb 1-1: new high-speed USB device number 2 using dummy_hcd ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd2d780690) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd2d77f680) = 18 [ 58.189365][ T4407] usb 1-1: Using ep0 maxpacket: 32 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd2d780690) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd2d77f680) = 9 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd2d780690) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd2d77f680) = 80 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd2d780690) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd2d77f680) = 4 [ 58.309984][ T4407] usb 1-1: config 0 has 1 interface, different from the descriptor's value: 2 [ 58.319432][ T4407] usb 1-1: config 0 interface 0 altsetting 0 has an invalid endpoint with address 0x0, skipping [ 58.329929][ T4407] usb 1-1: config 0 interface 0 altsetting 0 has an invalid endpoint with address 0x0, skipping [ 58.340416][ T4407] usb 1-1: Duplicate descriptor for config 0 interface 0 altsetting 0, skipping ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd2d780690) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd2d77f680) = 8 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd2d780690) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd2d77f680) = 8 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd2d780690) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd2d77f680) = 8 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd2d780690) = 0 ioctl(3, USB_RAW_IOCTL_VBUS_DRAW, 0) = 0 ioctl(3, USB_RAW_IOCTL_CONFIGURE, 0) = 0 ioctl(3, USB_RAW_IOCTL_EP_ENABLE, 0x7f54401d03ac) = -1 EINVAL (Invalid argument) ioctl(3, USB_RAW_IOCTL_EP_ENABLE, 0x7f54401d03bc) = -1 EINVAL (Invalid argument) ioctl(3, USB_RAW_IOCTL_EP0_READ, 0x7ffd2d77f680) = 0 [ 58.509856][ T4407] usb 1-1: New USB device found, idVendor=2040, idProduct=5530, bcdDevice=45.ba [ 58.519071][ T4407] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 58.527149][ T4407] usb 1-1: Product: syz [ 58.531379][ T4407] usb 1-1: Manufacturer: syz [ 58.536003][ T4407] usb 1-1: SerialNumber: syz [ 58.546823][ T4407] usb 1-1: config 0 descriptor?? [ 58.591993][ T4407] smsusb:smsusb_probe: board id=8, interface number 0 [ 58.598913][ T4407] ------------[ cut here ]------------ [ 58.604457][ T4407] WARNING: CPU: 0 PID: 4407 at kernel/workqueue.c:3167 __flush_work+0x946/0xb60 [ 58.613605][ T4407] Modules linked in: [ 58.617500][ T4407] CPU: 0 PID: 4407 Comm: kworker/0:3 Not tainted 6.2.0-next-20230225-syzkaller #0 [ 58.626741][ T4407] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 [ 58.636949][ T4407] Workqueue: usb_hub_wq hub_event [ 58.642052][ T4407] RIP: 0010:__flush_work+0x946/0xb60 [ 58.647360][ T4407] Code: 00 48 c7 c6 9b 0e 54 81 48 c7 c7 00 77 79 8c e8 00 0c 12 00 e9 6f fc ff ff e8 e6 96 30 00 0f 0b e9 63 fc ff ff e8 da 96 30 00 <0f> 0b 45 31 ed e9 54 fc ff ff e8 bb 22 82 00 e9 3e fb ff ff e8 c1 [ 58.667038][ T4407] RSP: 0018:ffffc900056fec00 EFLAGS: 00010293 [ 58.673206][ T4407] RAX: 0000000000000000 RBX: ffff888021dfe0e8 RCX: 0000000000000000 [ 58.681257][ T4407] RDX: ffff88802a5d1d40 RSI: ffffffff81540ed6 RDI: 0000000000000001 [ 58.689303][ T4407] RBP: ffffc900056fed98 R08: 0000000000000001 R09: 0000000000000000 [ 58.697342][ T4407] R10: 0000000000000001 R11: 0000000000000000 R12: ffff888021dfe0e8 [ 58.705385][ T4407] R13: 0000000000000001 R14: 0000000000000001 R15: ffff888021dfe100 [ 58.713405][ T4407] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 58.722404][ T4407] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 58.729006][ T4407] CR2: 000000000066c7e0 CR3: 0000000072953000 CR4: 00000000003506f0 [ 58.737038][ T4407] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 58.745054][ T4407] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 58.755836][ T4407] Call Trace: [ 58.760015][ T4407] [ 58.763294][ T4407] ? lockdep_hardirqs_on+0x7d/0x100 [ 58.771049][ T4407] ? print_usage_bug.part.0+0x660/0x660 [ 58.776668][ T4407] ? mod_delayed_work_on+0x220/0x220 [ 58.782115][ T4407] ? kasan_save_stack+0x32/0x40 [ 58.786994][ T4407] ? kasan_save_stack+0x22/0x40 exit_group(0) = ? +++ exited with 0 +++ [ 58.79191