./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2257075594 <...> Warning: Permanently added '10.128.10.4' (ECDSA) to the list of known hosts. execve("./syz-executor2257075594", ["./syz-executor2257075594"], 0x7ffce4fa2940 /* 10 vars */) = 0 brk(NULL) = 0x555556929000 brk(0x555556929c40) = 0x555556929c40 arch_prctl(ARCH_SET_FS, 0x555556929300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2257075594", 4096) = 28 brk(0x55555694ac40) = 0x55555694ac40 brk(0x55555694b000) = 0x55555694b000 mprotect(0x7fdb0f27f000, 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, 0x7ffd29fb65c0) = 0 ioctl(3, UI_DEV_CREATE or USB_RAW_IOCTL_RUN, 0) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd29fb65c0) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd29fb65c0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd29fb55b0) = 18 [ 58.811919][ T7] usb 1-1: new high-speed USB device number 2 using dummy_hcd ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd29fb65c0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd29fb55b0) = 18 [ 59.051828][ T7] usb 1-1: Using ep0 maxpacket: 8 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd29fb65c0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd29fb55b0) = 5 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd29fb65c0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd29fb55b0) = 5 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd29fb65c0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd29fb55b0) = 5 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd29fb65c0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd29fb55b0) = 9 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd29fb65c0) = 0 [ 59.222236][ T7] usb 1-1: unable to get BOS descriptor or descriptor too short ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd29fb55b0) = 36 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd29fb65c0) = 0 [ 59.302609][ T7] usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config [ 59.312972][ T7] usb 1-1: config 0 interface 0 altsetting 0 has 0 endpoint descriptors, different from the interface descriptor's value: 1 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd29fb55b0) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd29fb65c0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd29fb55b0) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd29fb65c0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd29fb55b0) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd29fb65c0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd29fb55b0) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd29fb65c0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd29fb55b0) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd29fb65c0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd29fb55b0) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd29fb65c0) = 0 ioctl(3, USB_RAW_IOCTL_VBUS_DRAW, 0) = 0 ioctl(3, USB_RAW_IOCTL_CONFIGURE, 0) = 0 [ 59.572235][ T7] usb 1-1: string descriptor 0 read error: -22 [ 59.578482][ T7] usb 1-1: New USB device found, idVendor=2040, idProduct=f5a0, bcdDevice=62.4d [ 59.587709][ T7] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 59.603120][ T7] usb 1-1: config 0 descriptor?? ioctl(3, USB_RAW_IOCTL_EP0_READ, 0x7ffd29fb55b0) = 0 [ 59.666375][ T7] smsusb:smsusb_probe: board id=8, interface number 0 [ 59.673464][ T7] ------------[ cut here ]------------ [ 59.678908][ T7] WARNING: CPU: 0 PID: 7 at kernel/workqueue.c:3184 __flush_work+0x946/0xb60 [ 59.687728][ T7] Modules linked in: [ 59.691630][ T7] CPU: 0 PID: 7 Comm: kworker/0:0 Not tainted 6.4.0-rc2-next-20230515-syzkaller #0 [ 59.700948][ T7] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023 [ 59.711055][ T7] Workqueue: usb_hub_wq hub_event [ 59.716132][ T7] RIP: 0010:__flush_work+0x946/0xb60 [ 59.721441][ T7] 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 [ 59.741103][ T7] RSP: 0018:ffffc900000c6c08 EFLAGS: 00010293 [ 59.747209][ T7] RAX: 0000000000000000 RBX: ffff88807d9260e8 RCX: 0000000000000000 [ 59.755211][ T7] RDX: ffff888014e4bb80 RSI: ffffffff8153c296 RDI: 0000000000000001 [ 59.763234][ T7] RBP: ffffc900000c6da0 R08: 0000000000000001 R09: 0000000000000000 [ 59.771206][ T7] R10: 0000000000000001 R11: ffffffff81d6fb82 R12: ffff88807d9260e8 [ 59.779260][ T7] R13: 0000000000000001 R14: 0000000000000001 R15: ffff88807d926100 [ 59.787280][ T7] FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 [ 59.796286][ T7] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 59.802924][ T7] CR2: 00007fc1d12e5111 CR3: 000000002c43d000 CR4: 00000000003506f0 [ 59.810912][ T7] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 59.818929][ T7] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 59.826948][ T7] Call Trace: [ 59.830220][ T7] [ 59.833183][ T7] ? lockdep_hardirqs_on+0x7d/0x100 [ 59.838413][ T7] ? print_usage_bug.part.0+0x660/0x660 [ 59.844014][ T7] ? mod_delayed_work_on+0x220/0x220 [ 59.849328][ T7] ? kasan_save_stack+0x32/0x40 [ 59.854263][ T7] ? kasan_save_stack+0x22/0x40 [ 59.859128][ T7] ? kasan_set_track+0x25/0x30 exit_group(0) = ? +++ exited with 0 +++ [ 59.863947][ T7] ? __kasan_kmal