./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 <unnamed> (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] <TASK>
[ 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][