./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1998529588 <...> Warning: Permanently added '10.128.0.223' (ECDSA) to the list of known hosts. execve("./syz-executor1998529588", ["./syz-executor1998529588"], 0x7ffde20e0940 /* 10 vars */) = 0 brk(NULL) = 0x55555605c000 brk(0x55555605cc40) = 0x55555605cc40 arch_prctl(ARCH_SET_FS, 0x55555605c300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1998529588", 4096) = 28 brk(0x55555607dc40) = 0x55555607dc40 brk(0x55555607e000) = 0x55555607e000 mprotect(0x7fd6a202f000, 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, 0x7ffcd2c85c80) = 0 ioctl(3, UI_DEV_CREATE or USB_RAW_IOCTL_RUN, 0) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffcd2c85c80) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffcd2c85c80) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffcd2c84c70) = 18 syzkaller login: [ 41.716193][ T898] usb 1-1: new high-speed USB device number 2 using dummy_hcd ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffcd2c85c80) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffcd2c84c70) = 18 [ 41.966209][ T898] usb 1-1: Using ep0 maxpacket: 32 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffcd2c85c80) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffcd2c84c70) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffcd2c85c80) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffcd2c84c70) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffcd2c85c80) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffcd2c84c70) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffcd2c85c80) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffcd2c84c70) = 9 [ 42.136254][ T898] usb 1-1: unable to get BOS descriptor or descriptor too short ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffcd2c85c80) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffcd2c84c70) = 53 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffcd2c85c80) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffcd2c84c70) = 0 [ 42.236243][ T898] usb 1-1: config 0 has 1 interface, different from the descriptor's value: 2 [ 42.245233][ T898] usb 1-1: Duplicate descriptor for config 0 interface 0 altsetting 0, skipping ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffcd2c85c80) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffcd2c84c70) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffcd2c85c80) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffcd2c84c70) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffcd2c85c80) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffcd2c84c70) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffcd2c85c80) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffcd2c84c70) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffcd2c85c80) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffcd2c84c70) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffcd2c85c80) = 0 ioctl(3, USB_RAW_IOCTL_VBUS_DRAW, 0) = 0 ioctl(3, USB_RAW_IOCTL_CONFIGURE, 0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_READ, 0x7ffcd2c84c70) = 0 [ 42.486329][ T898] usb 1-1: string descriptor 0 read error: -22 [ 42.492550][ T898] usb 1-1: New USB device found, idVendor=2040, idProduct=5530, bcdDevice=45.ba [ 42.501606][ T898] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 42.512055][ T898] usb 1-1: config 0 descriptor?? [ 42.568683][ T898] smsusb:smsusb_probe: board id=8, interface number 0 [ 42.575545][ T898] ------------[ cut here ]------------ [ 42.581117][ T898] WARNING: CPU: 1 PID: 898 at kernel/workqueue.c:3182 __flush_work+0x946/0xb60 [ 42.590234][ T898] Modules linked in: [ 42.594121][ T898] CPU: 1 PID: 898 Comm: kworker/1:2 Not tainted 6.4.0-rc3-syzkaller-00004-g421ca22e3138 #0 [ 42.604121][ T898] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 [ 42.614288][ T898] Workqueue: usb_hub_wq hub_event [ 42.619362][ T898] RIP: 0010:__flush_work+0x946/0xb60 [ 42.624671][ T898] Code: 00 48 c7 c6 9b f7 53 81 48 c7 c7 40 90 79 8c e8 d0 ec 11 00 e9 6f fc ff ff e8 06 4b 30 00 0f 0b e9 63 fc ff ff e8 fa 4a 30 00 <0f> 0b 45 31 ed e9 54 fc ff ff e8 db 14 83 00 e9 3e fb ff ff e8 e1 [ 42.644394][ T898] RSP: 0018:ffffc90004feec08 EFLAGS: 00010293 [ 42.650510][ T898] RAX: 0000000000000000 RBX: ffff88807db5a0e8 RCX: 0000000000000000 [ 42.658501][ T898] RDX: ffff88801f983b80 RSI: ffffffff8153f7d6 RDI: 0000000000000001 [ 42.666498][ T898] RBP: ffffc90004feeda0 R08: 0000000000000001 R09: 0000000000000000 [ 42.674499][ T898] R10: 0000000000000001 R11: ffffffff810055ef R12: ffff88807db5a0e8 [ 42.682506][ T898] R13: 0000000000000001 R14: 0000000000000001 R15: ffff88807db5a100 [ 42.690507][ T898] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 42.699484][ T898] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 42.706187][ T898] CR2: 000055c538267900 CR3: 000000002b15d000 CR4: 0000000000350ee0 [ 42.714142][ T898] Call Trace: [ 42.717436][ T898] [ 42.720367][ T898] ? lockdep_hardirqs_on+0x7d/0x100 [ 42.725557][ T898] ? print_usage_bug.part.0+0x660/0x660 [ 42.731125][ T898] ? mod_delayed_work_on+0x220/0x220 [ 42.736457][ T898] ? kasan_save_stack+0x32/0x40 [ 42.741295][ T898] ? kasan_save_stack+0x22/0x40 [ 42.746185][ T898] ? kasan_set_track+0x25/0x30 [ 42.751057][ T898] ? __kasan_kmalloc+0xa2/0xb0 [ 42.755805][ T898] ? smsusb_init_device+0xa7/0xd20 [ 42.760950][ T898] ? smsusb_probe+0x5b9/0x10b0 exit_group(0) = ? +++ exited with 0 +++ [ 42.765740][ T898] ? usb_probe_interface