./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3562149704 <...> Warning: Permanently added '10.128.1.39' (ECDSA) to the list of known hosts. execve("./syz-executor3562149704", ["./syz-executor3562149704"], 0x7ffc0a7bb5e0 /* 10 vars */) = 0 brk(NULL) = 0x5555564cf000 brk(0x5555564cfc40) = 0x5555564cfc40 arch_prctl(ARCH_SET_FS, 0x5555564cf300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3562149704", 4096) = 28 brk(0x5555564f0c40) = 0x5555564f0c40 brk(0x5555564f1000) = 0x5555564f1000 mprotect(0x7fca4212a000, 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, 0x7fff6295c590) = 0 ioctl(3, UI_DEV_CREATE or USB_RAW_IOCTL_RUN, 0) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fff6295c590) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fff6295c590) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7fff6295b580) = 18 [ 56.662314][ T759] usb 1-1: new high-speed USB device number 2 using dummy_hcd ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fff6295c590) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7fff6295b580) = 18 [ 56.902297][ T759] usb 1-1: Using ep0 maxpacket: 32 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fff6295c590) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7fff6295b580) = 9 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fff6295c590) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7fff6295b580) = 80 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fff6295c590) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7fff6295b580) = 4 [ 57.022896][ T759] usb 1-1: config 0 has 1 interface, different from the descriptor's value: 2 [ 57.032233][ T759] usb 1-1: config 0 interface 0 altsetting 0 has an invalid endpoint with address 0x0, skipping [ 57.042697][ T759] usb 1-1: config 0 interface 0 altsetting 0 has an invalid endpoint with address 0x0, skipping [ 57.053152][ T759] usb 1-1: Duplicate descriptor for config 0 interface 0 altsetting 0, skipping ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fff6295c590) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7fff6295b580) = 8 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fff6295c590) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7fff6295b580) = 8 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fff6295c590) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7fff6295b580) = 8 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fff6295c590) = 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, 0x7fca421303ac) = -1 EINVAL (Invalid argument) ioctl(3, USB_RAW_IOCTL_EP_ENABLE, 0x7fca421303bc) = -1 EINVAL (Invalid argument) ioctl(3, USB_RAW_IOCTL_EP0_READ, 0x7fff6295b580) = 0 [ 57.222420][ T759] usb 1-1: New USB device found, idVendor=2040, idProduct=5530, bcdDevice=45.ba [ 57.231667][ T759] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 57.239922][ T759] usb 1-1: Product: syz [ 57.244162][ T759] usb 1-1: Manufacturer: syz [ 57.248760][ T759] usb 1-1: SerialNumber: syz [ 57.256391][ T759] usb 1-1: config 0 descriptor?? [ 57.294775][ T759] smsusb:smsusb_probe: board id=8, interface number 0 [ 57.301681][ T759] ------------[ cut here ]------------ [ 57.307195][ T759] WARNING: CPU: 0 PID: 759 at kernel/workqueue.c:3184 __flush_work+0x946/0xb60 [ 57.316204][ T759] Modules linked in: [ 57.320086][ T759] CPU: 0 PID: 759 Comm: kworker/0:2 Not tainted 6.4.0-rc2-next-20230515-syzkaller #0 [ 57.329572][ T759] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 [ 57.339665][ T759] Workqueue: usb_hub_wq hub_event [ 57.344735][ T759] RIP: 0010:__flush_work+0x946/0xb60 [ 57.350046][ T759] Code: 00 48 c7 c6 5b c2 53 81 48 c7 c7 40 91 79 8c e8 30 08 12 00 e9 6f fc ff ff e8 26 61 30 00 0f 0b e9 63 fc ff ff e8 1a 61 30 00 <0f> 0b 45 31 ed e9 54 fc ff ff e8 2b 61 83 00 e9 3e fb ff ff e8 01 [ 57.370192][ T759] RSP: 0018:ffffc90003e0ec08 EFLAGS: 00010293 [ 57.376350][ T759] RAX: 0000000000000000 RBX: ffff88807b85e0e8 RCX: 0000000000000000 [ 57.384412][ T759] RDX: ffff88801e6d3b80 RSI: ffffffff8153c296 RDI: 0000000000000001 [ 57.392455][ T759] RBP: ffffc90003e0eda0 R08: 0000000000000001 R09: 0000000000000000 [ 57.400433][ T759] R10: 0000000000000001 R11: ffffffff81d6fb82 R12: ffff88807b85e0e8 [ 57.408446][ T759] R13: 0000000000000001 R14: 0000000000000001 R15: ffff88807b85e100 [ 57.416465][ T759] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 57.425445][ T759] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 57.432216][ T759] CR2: 000000000066c7e0 CR3: 00000000152b3000 CR4: 00000000003506f0 [ 57.440212][ T759] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 57.448234][ T759] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 57.456252][ T759] Call Trace: [ 57.459523][ T759] [ 57.462495][ T759] ? lockdep_hardirqs_on+0x7d/0x100 [ 57.467729][ T759] ? print_usage_bug.part.0+0x660/0x660 [ 57.473325][ T759] ? mod_delayed_work_on+0x220/0x220 [ 57.478640][ T759] ? kasan_save_stack+0x32/0x40 [ 57.483541][ T759] ? kasan_save_stack+0x22/0x40 [ 57.489185][ T759] ? kasan_set_track+0x25/0x30 exit_group(0) = ? +++ exited with 0 +++ [ 57.494007][ T759]