./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor2064690083 <...> Warning: Permanently added '10.128.0.100' (ECDSA) to the list of known hosts. execve("./syz-executor2064690083", ["./syz-executor2064690083"], 0x7ffd1629bda0 /* 10 vars */) = 0 brk(NULL) = 0x55555578e000 brk(0x55555578ec40) = 0x55555578ec40 arch_prctl(ARCH_SET_FS, 0x55555578e300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor2064690083", 4096) = 28 brk(0x5555557afc40) = 0x5555557afc40 brk(0x5555557b0000) = 0x5555557b0000 mprotect(0x7f10f21f5000, 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, 0x7ffe08da1b90) = 0 ioctl(3, UI_DEV_CREATE or USB_RAW_IOCTL_RUN, 0) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffe08da1b90) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffe08da1b90) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffe08da0b80) = 18 [ 51.152088][ T22] usb 1-1: new high-speed USB device number 2 using dummy_hcd ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffe08da1b90) = 0 [ 51.391993][ T22] usb 1-1: Using ep0 maxpacket: 8 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffe08da0b80) = 18 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffe08da1b90) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffe08da0b80) = 9 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffe08da1b90) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffe08da0b80) = 70 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffe08da1b90) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffe08da0b80) = 4 [ 51.512160][ T22] usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffe08da1b90) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffe08da0b80) = 8 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffe08da1b90) = 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, 0x7ffe08da0b80) = 0 [ 51.602120][ T22] usb 1-1: New USB device found, idVendor=0bd3, idProduct=0d55, bcdDevice=69.6a [ 51.611374][ T22] usb 1-1: New USB device strings: Mfr=64, Product=0, SerialNumber=0 [ 51.619536][ T22] usb 1-1: Manufacturer: syz [ 51.627237][ T22] usb 1-1: config 0 descriptor?? ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffe08da1bc0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffe08da0bb0) = 4 [ 51.882617][ T22] usb 1-1: Found UVC 0.00 device (0bd3:0d55) [ 51.889771][ T22] uvcvideo 1-1:0.0: Entity type for entity ΣΏ was not initialized! [ 51.898431][ T22] ------------[ cut here ]------------ [ 51.903945][ T22] WARNING: CPU: 1 PID: 22 at drivers/media/mc/mc-entity.c:663 media_create_pad_link+0x4de/0x650 [ 51.914512][ T22] Modules linked in: [ 51.918416][ T22] CPU: 1 PID: 22 Comm: kworker/1:0 Not tainted 5.19.0-syzkaller-02972-g200e340f2196 #0 [ 51.928111][ T22] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022 [ 51.938201][ T22] Workqueue: usb_hub_wq hub_event [ 51.943295][ T22] RIP: 0010:media_create_pad_link+0x4de/0x650 [ 51.949385][ T22] Code: 18 81 6e fb 44 89 e0 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 01 81 6e fb 0f 0b 41 bc ea ff ff ff eb da e8 f2 80 6e fb <0f> 0b 41 bc ea ff ff ff eb cb e8 e3 80 6e fb 0f 0b 41 bc ea ff ff [ 51.969064][ T22] RSP: 0018:ffffc900001c6ee0 EFLAGS: 00010293 [ 51.975209][ T22] RAX: 0000000000000000 RBX: ffff88801ce56080 RCX: 0000000000000000 [ 51.983378][ T22] RDX: ffff888011a4bb00 RSI: ffffffff860c58ce RDI: 0000000000000002 [ 51.991374][ T22] RBP: ffff88801fc10080 R08: 0000000000000002 R09: 0000000000000000 [ 51.999446][ T22] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 52.007493][ T22] R13: 0000000000000000 R14: 0000000000000000 R15: ffff88801fc10080 [ 52.015534][ T22] FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 52.024716][ T22] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 52.031322][ T22] CR2: 00007ffe636dc068 CR3: 000000007789b000 CR4: 0000000000350ee0 [ 52.039368][ T22] Call Trace: [ 52.042742][ T22] [ 52.045704][ T22] uvc_mc_register_entities+0x5cd/0x910 [ 52.051247][ T22] uvc_probe.cold+0x1cc5/0x218d [ 52.056139][ T22] ? lock_chain_count+0x20/0x20 [ 52.061014][ T22] ? find_held_lock+0x2d/0x110 [ 52.065901][ T22] usb_probe_interface+0x315/0x7f0 [ 52.071052][ T22] ? usb_match_dynamic_id+0x1a0/0x1a0 [ 52.076472][ T22] really_probe+0x23e/0xb90 exit_group(0) = ? +++ exited with 0 +++ [ 52.081033][ T22] __driver_