./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1741999379 <...> Warning: Permanently added '10.128.0.9' (ECDSA) to the list of known hosts. execve("./syz-executor1741999379", ["./syz-executor1741999379"], 0x7ffdc9e58ef0 /* 10 vars */) = 0 brk(NULL) = 0x5555562f4000 brk(0x5555562f4c40) = 0x5555562f4c40 arch_prctl(ARCH_SET_FS, 0x5555562f4300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1741999379", 4096) = 28 brk(0x555556315c40) = 0x555556315c40 brk(0x555556316000) = 0x555556316000 mprotect(0x7f4c8456f000, 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 bpf(BPF_MAP_CREATE, {map_type=BPF_MAP_TYPE_UNSPEC, key_size=0, value_size=1, max_entries=257, map_flags=0, inner_map_fd=-1, map_name="", map_ifindex=0, btf_fd=-1, btf_key_type_id=0, btf_value_type_id=0, btf_vmlinux_value_type_id=0, map_extra=0}, 72) = -1 EINVAL (Invalid argument) openat(AT_FDCWD, "/dev/raw-gadget", O_RDWR) = 3 ioctl(3, USB_RAW_IOCTL_INIT, 0x7ffc1f476970) = 0 ioctl(3, UI_DEV_CREATE or USB_RAW_IOCTL_RUN, 0) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffc1f476970) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffc1f476970) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffc1f475960) = 18 [ 36.246112][ T3270] usb 1-1: new high-speed USB device number 2 using dummy_hcd ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffc1f476970) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffc1f475960) = 18 [ 36.486098][ T3270] usb 1-1: Using ep0 maxpacket: 8 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffc1f476970) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffc1f475960) = 9 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffc1f476970) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffc1f475960) = 70 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffc1f476970) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffc1f475960) = 4 [ 36.606822][ T3270] usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffc1f476970) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffc1f475960) = 8 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffc1f476970) = 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, 0x7ffc1f475960) = 0 [ 36.696592][ T3270] usb 1-1: New USB device found, idVendor=0bd3, idProduct=0d55, bcdDevice=69.6a [ 36.705630][ T3270] usb 1-1: New USB device strings: Mfr=64, Product=0, SerialNumber=0 [ 36.713976][ T3270] usb 1-1: Manufacturer: syz [ 36.720017][ T3270] usb 1-1: config 0 descriptor?? ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffc1f4769a0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffc1f475990) = 4 [ 36.976428][ T3270] usb 1-1: Found UVC 0.00 device (0bd3:0d55) [ 36.983495][ T3270] uvcvideo 1-1:0.0: Entity type for entity ΣΏ was not initialized! [ 36.991878][ T3270] ------------[ cut here ]------------ [ 36.997490][ T3270] WARNING: CPU: 0 PID: 3270 at drivers/media/mc/mc-entity.c:664 media_create_pad_link+0x953/0xab0 [ 37.008128][ T3270] Modules linked in: [ 37.012015][ T3270] CPU: 0 PID: 3270 Comm: kworker/0:3 Not tainted 6.0.0-syzkaller-09413-g4899a36f91a9 #0 [ 37.021766][ T3270] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 37.031840][ T3270] Workqueue: usb_hub_wq hub_event [ 37.036887][ T3270] RIP: 0010:media_create_pad_link+0x953/0xab0 [ 37.042960][ T3270] Code: 01 00 00 66 ff 03 31 c0 48 83 c4 50 5b 41 5c 41 5d 41 5e 41 5f 5d c3 e8 cb 9b d7 fa 0f 0b b8 ea ff ff ff eb e3 e8 bd 9b d7 fa <0f> 0b b8 ea ff ff ff eb d5 e8 af 9b d7 fa 0f 0b b8 ea ff ff ff eb [ 37.062598][ T3270] RSP: 0018:ffffc9000380e710 EFLAGS: 00010293 [ 37.068690][ T3270] RAX: ffffffff86b0c783 RBX: 0000000000000000 RCX: ffff88801cb01d80 [ 37.076704][ T3270] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 37.084681][ T3270] RBP: 0000000000000000 R08: ffffffff86b0be95 R09: ffffed10030baa98 [ 37.092689][ T3270] R10: ffffed10030baa98 R11: 1ffff110030baa97 R12: ffff888028227880 [ 37.100687][ T3270] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88802121f080 [ 37.108682][ T3270] FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 37.117632][ T3270] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.124196][ T3270] CR2: 00007fff3549c758 CR3: 00000000279e4000 CR4: 00000000003506f0 [ 37.132357][ T3270] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 37.140351][ T3270] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 37.148336][ T3270] Call Trace: [ 37.151608][ T3270] [ 37.154523][ T3270] ? _raw_spin_unlock+0x24/0x40 [ 37.159404][ T3270] ? v4l2_device_register_subdev+0x50d/0x590 [ 37.165387][ T3270] uvc_mc_register_entities+0x73a/0x9a0 [ 37.170952][ T3270] uvc_register_chains+0x42f/0x520 exit_group(0) = ? +++ exited with 0 +++ [ 37.176127][