./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3977677734 <...> Warning: Permanently added '10.128.0.233' (ECDSA) to the list of known hosts. execve("./syz-executor3977677734", ["./syz-executor3977677734"], 0x7fffff102ce0 /* 10 vars */) = 0 brk(NULL) = 0x555556a27000 brk(0x555556a27c40) = 0x555556a27c40 arch_prctl(ARCH_SET_FS, 0x555556a27300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3977677734", 4096) = 28 brk(0x555556a48c40) = 0x555556a48c40 brk(0x555556a49000) = 0x555556a49000 mprotect(0x7f7daa6f3000, 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, 0x7ffccb358190) = 0 ioctl(3, UI_DEV_CREATE or USB_RAW_IOCTL_RUN, 0) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffccb358190) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffccb358190) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffccb357180) = 18 syzkaller login: [ 36.943280][ T14] usb 1-1: new high-speed USB device number 2 using dummy_hcd ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffccb358190) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffccb357180) = 18 [ 37.183185][ T14] usb 1-1: Using ep0 maxpacket: 8 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffccb358190) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffccb357180) = 9 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffccb358190) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffccb357180) = 70 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffccb358190) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffccb357180) = 4 [ 37.303324][ T14] usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffccb358190) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffccb357180) = 8 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffccb358190) = 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, 0x7ffccb357180) = 0 [ 37.393303][ T14] usb 1-1: New USB device found, idVendor=0bd3, idProduct=0d55, bcdDevice=69.6a [ 37.402686][ T14] usb 1-1: New USB device strings: Mfr=64, Product=0, SerialNumber=0 [ 37.410856][ T14] usb 1-1: Manufacturer: syz [ 37.418779][ T14] usb 1-1: config 0 descriptor?? ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffccb3581c0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffccb3571b0) = 4 [ 37.683565][ T14] usb 1-1: Found UVC 0.00 device (0bd3:0d55) [ 37.690850][ T14] uvcvideo 1-1:0.0: Entity type for entity ΣΏ was not initialized! [ 37.699343][ T14] ------------[ cut here ]------------ [ 37.704851][ T14] WARNING: CPU: 0 PID: 14 at drivers/media/mc/mc-entity.c:663 media_create_pad_link+0x4de/0x650 [ 37.715358][ T14] Modules linked in: [ 37.719253][ T14] CPU: 0 PID: 14 Comm: kworker/0:1 Not tainted 5.19.0-rc5-syzkaller-00200-ga471da3100ef #0 [ 37.729740][ T14] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 [ 37.739844][ T14] Workqueue: usb_hub_wq hub_event [ 37.744929][ T14] RIP: 0010:media_create_pad_link+0x4de/0x650 [ 37.751178][ T14] Code: 88 2c 6e fb 44 89 e0 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 71 2c 6e fb 0f 0b 41 bc ea ff ff ff eb da e8 62 2c 6e fb <0f> 0b 41 bc ea ff ff ff eb cb e8 53 2c 6e fb 0f 0b 41 bc ea ff ff [ 37.770888][ T14] RSP: 0018:ffffc90000136ee0 EFLAGS: 00010293 [ 37.777057][ T14] RAX: 0000000000000000 RBX: ffff888026676880 RCX: 0000000000000000 [ 37.785206][ T14] RDX: ffff888011a81d80 RSI: ffffffff860c3a2e RDI: 0000000000000002 [ 37.793219][ T14] RBP: ffff888026677080 R08: 0000000000000002 R09: 0000000000000000 [ 37.801198][ T14] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 37.809584][ T14] R13: 0000000000000000 R14: 0000000000000000 R15: ffff888026677080 [ 37.817588][ T14] FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 37.826698][ T14] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.833309][ T14] CR2: 00007fffe667eb90 CR3: 000000007ed8a000 CR4: 0000000000350ef0 [ 37.841267][ T14] Call Trace: [ 37.844593][ T14] [ 37.847529][ T14] uvc_mc_register_entities+0x5cd/0x910 [ 37.853070][ T14] uvc_probe.cold+0x1cc5/0x218d [ 37.857977][ T14] ? lock_chain_count+0x20/0x20 [ 37.862879][ T14] ? find_held_lock+0x2d/0x110 [ 37.867731][ T14] usb_probe_interface+0x315/0x7f0 [ 37.872924][ T14] ? usb_match_dynamic_id+0x1a0/0x1a0 [ 37.878377][ T14] really_probe+0x23e/0xb90 exit_group(0) = ? +++ exited with 0 +++ [ 37.882920][ T