./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor1358415850 <...> forked to background, child pid 3183 no interfaces have a carrier [ 24.459228][ T3184] 8021q: adding VLAN 0 to HW filter on device bond0 [ 24.468715][ T3184] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller Warning: Permanently added '10.128.1.30' (ECDSA) to the list of known hosts. execve("./syz-executor1358415850", ["./syz-executor1358415850"], 0x7ffcfe821c20 /* 10 vars */) = 0 brk(NULL) = 0x555557194000 brk(0x555557194c40) = 0x555557194c40 arch_prctl(ARCH_SET_FS, 0x555557194300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor1358415850", 4096) = 28 brk(0x5555571b5c40) = 0x5555571b5c40 brk(0x5555571b6000) = 0x5555571b6000 mprotect(0x7f0317ab2000, 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, 0x7fffc545b5e0) = 0 ioctl(3, UI_DEV_CREATE or USB_RAW_IOCTL_RUN, 0) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fffc545b5e0) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fffc545b5e0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7fffc545a5d0) = 18 syzkaller login: [ 41.023722][ T26] usb 1-1: new high-speed USB device number 2 using dummy_hcd ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fffc545b5e0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7fffc545a5d0) = 18 [ 41.273723][ T26] usb 1-1: Using ep0 maxpacket: 8 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fffc545b5e0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7fffc545a5d0) = 9 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fffc545b5e0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7fffc545a5d0) = 70 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fffc545b5e0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7fffc545a5d0) = 4 [ 41.394081][ T26] usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fffc545b5e0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7fffc545a5d0) = 8 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fffc545b5e0) = 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, 0x7fffc545a5d0) = 0 [ 41.484118][ T26] usb 1-1: New USB device found, idVendor=0bd3, idProduct=0d55, bcdDevice=69.6a [ 41.493254][ T26] usb 1-1: New USB device strings: Mfr=64, Product=0, SerialNumber=0 [ 41.501458][ T26] usb 1-1: Manufacturer: syz [ 41.507695][ T26] usb 1-1: config 0 descriptor?? ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fffc545b610) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7fffc545a600) = 4 [ 41.763902][ T26] usb 1-1: Found UVC 0.00 device (0bd3:0d55) [ 41.771386][ T26] uvcvideo 1-1:0.0: Entity type for entity ΣΏ was not initialized! [ 41.779792][ T26] ------------[ cut here ]------------ [ 41.785476][ T26] WARNING: CPU: 1 PID: 26 at drivers/media/mc/mc-entity.c:664 media_create_pad_link+0x4de/0x650 [ 41.795948][ T26] Modules linked in: [ 41.799847][ T26] CPU: 1 PID: 26 Comm: kworker/1:1 Not tainted 6.0.0-rc3-next-20220901-syzkaller #0 [ 41.809274][ T26] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 [ 41.819584][ T26] Workqueue: usb_hub_wq hub_event [ 41.824650][ T26] RIP: 0010:media_create_pad_link+0x4de/0x650 [ 41.830849][ T26] Code: e8 74 68 fb 44 89 e0 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 d1 74 68 fb 0f 0b 41 bc ea ff ff ff eb da e8 c2 74 68 fb <0f> 0b 41 bc ea ff ff ff eb cb e8 b3 74 68 fb 0f 0b 41 bc ea ff ff [ 41.850764][ T26] RSP: 0018:ffffc90000a1eed0 EFLAGS: 00010293 [ 41.856971][ T26] RAX: 0000000000000000 RBX: ffff88807ac86880 RCX: 0000000000000000 [ 41.865064][ T26] RDX: ffff8880126a3a80 RSI: ffffffff8613b15e RDI: 0000000000000002 [ 41.873057][ T26] RBP: ffff888074818880 R08: 0000000000000002 R09: 0000000000000000 [ 41.881082][ T26] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 41.889085][ T26] R13: 0000000000000000 R14: 0000000000000000 R15: ffff888074818880 [ 41.897530][ T26] FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 41.906523][ T26] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 41.913105][ T26] CR2: 0000562aa0416df0 CR3: 000000007a320000 CR4: 00000000003506e0 [ 41.921227][ T26] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 41.929340][ T26] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 41.937457][ T26] Call Trace: [ 41.940741][ T26] [ 41.943709][ T26] uvc_mc_register_entities+0x5cd/0x910 [ 41.949287][ T26] uvc_probe.cold+0x1cd6/0x218d [ 41.954176][ T26] ? lock_acquire+0x480/0x570 [ 41.958874][ T26] ? lock_release+0x780/0x780 exit_group(0) = ? +++ exited with 0 +++ [ 41.963543][