./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor4196637176 <...> DUID 00:04:d6:b0:09:ff:72:32:c6:5d:c0:56:b1:2d:70:06:fa:56 forked to background, child pid 3185 [ 19.895266][ T3186] 8021q: adding VLAN 0 to HW filter on device bond0 [ 19.905673][ T3186] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.0.194' (ECDSA) to the list of known hosts. execve("./syz-executor4196637176", ["./syz-executor4196637176"], 0x7ffeb85acb00 /* 10 vars */) = 0 brk(NULL) = 0x555556bc2000 brk(0x555556bc2c40) = 0x555556bc2c40 arch_prctl(ARCH_SET_FS, 0x555556bc2300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor4196637176", 4096) = 28 brk(0x555556be3c40) = 0x555556be3c40 brk(0x555556be4000) = 0x555556be4000 mprotect(0x7f13495c3000, 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, 0x7ffe57969ae0) = 0 ioctl(3, UI_DEV_CREATE or USB_RAW_IOCTL_RUN, 0) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffe57969ae0) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffe57969ae0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffe57968ad0) = 18 syzkaller login: [ 36.000514][ T27] usb 1-1: new high-speed USB device number 2 using dummy_hcd ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffe57969ae0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffe57968ad0) = 18 [ 36.250480][ T27] usb 1-1: Using ep0 maxpacket: 8 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffe57969ae0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffe57968ad0) = 9 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffe57969ae0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffe57968ad0) = 70 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffe57969ae0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffe57968ad0) = 4 [ 36.380501][ T27] usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffe57969ae0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffe57968ad0) = 8 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffe57969ae0) = 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, 0x7ffe57968ad0) = 0 [ 36.470811][ T27] usb 1-1: New USB device found, idVendor=0bd3, idProduct=0d55, bcdDevice=69.6a [ 36.479865][ T27] usb 1-1: New USB device strings: Mfr=64, Product=0, SerialNumber=0 [ 36.488112][ T27] usb 1-1: Manufacturer: syz [ 36.494318][ T27] usb 1-1: config 0 descriptor?? ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffe57969b10) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffe57968b00) = 4 [ 36.750837][ T27] usb 1-1: Found UVC 0.00 device (0bd3:0d55) [ 36.757754][ T27] uvcvideo 1-1:0.0: Entity type for entity ΣΏ was not initialized! [ 36.766187][ T27] ------------[ cut here ]------------ [ 36.771806][ T27] WARNING: CPU: 1 PID: 27 at drivers/media/mc/mc-entity.c:664 media_create_pad_link+0x953/0xab0 [ 36.782287][ T27] Modules linked in: [ 36.786179][ T27] CPU: 1 PID: 27 Comm: kworker/1:1 Not tainted 6.0.0-syzkaller-09413-g4899a36f91a9 #0 [ 36.795736][ T27] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 [ 36.805806][ T27] Workqueue: usb_hub_wq hub_event [ 36.810866][ T27] RIP: 0010:media_create_pad_link+0x953/0xab0 [ 36.816943][ T27] 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 [ 36.836578][ T27] RSP: 0018:ffffc90000a2e710 EFLAGS: 00010293 [ 36.842805][ T27] RAX: ffffffff86b0c783 RBX: 0000000000000000 RCX: ffff888012f2bb00 [ 36.850802][ T27] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 36.858780][ T27] RBP: 0000000000000000 R08: ffffffff86b0be95 R09: ffffed1003022a98 [ 36.866786][ T27] R10: ffffed1003022a98 R11: 1ffff11003022a97 R12: ffff888026a1a880 [ 36.874774][ T27] R13: dffffc0000000000 R14: 0000000000000000 R15: ffff888026a18080 [ 36.882755][ T27] FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 36.891699][ T27] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 36.898264][ T27] CR2: 0000556b039db2f8 CR3: 000000000ca8e000 CR4: 00000000003506e0 [ 36.906288][ T27] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 36.914273][ T27] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 36.922258][ T27] Call Trace: [ 36.925545][ T27] [ 36.928465][ T27] ? _raw_spin_unlock+0x24/0x40 [ 36.933338][ T27] ? v4l2_device_register_subdev+0x50d/0x590 [ 36.939498][ T27] uvc_mc_register_entities+0x73a/0x9a0 [ 36.945069][ T27] uvc_register_chains+0x42f/0x520 exit_group(0) = ? +++ exited with 0 +++ [ 36.950177][