./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor622126770 <...> [ 31.167248][ T3185] 8021q: adding VLAN 0 to HW filter on device bond0 [ 31.181516][ T3185] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller syzkaller login: [ 40.314798][ T26] kauditd_printk_skb: 37 callbacks suppressed [ 40.314815][ T26] audit: type=1400 audit(1668043189.401:73): avc: denied { transition } for pid=3393 comm="sshd" path="/bin/sh" dev="sda1" ino=73 scontext=system_u:system_r:initrc_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 40.344123][ T26] audit: type=1400 audit(1668043189.411:74): avc: denied { write } for pid=3393 comm="sh" path="pipe:[28381]" dev="pipefs" ino=28381 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1 Warning: Permanently added '10.128.0.52' (ECDSA) to the list of known hosts. execve("./syz-executor622126770", ["./syz-executor622126770"], 0x7ffc1b1e0910 /* 10 vars */) = 0 brk(NULL) = 0x5555565ce000 brk(0x5555565cec40) = 0x5555565cec40 arch_prctl(ARCH_SET_FS, 0x5555565ce300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor622126770", 4096) = 27 brk(0x5555565efc40) = 0x5555565efc40 brk(0x5555565f0000) = 0x5555565f0000 mprotect(0x7fac25f2f000, 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, 0x7fffec3e57f0) = 0 ioctl(3, UI_DEV_CREATE or USB_RAW_IOCTL_RUN, 0) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fffec3e57f0) = 0 [ 52.682907][ T26] audit: type=1400 audit(1668043201.771:75): avc: denied { execmem } for pid=3606 comm="syz-executor622" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 52.708881][ T26] audit: type=1400 audit(1668043201.771:76): avc: denied { bpf } for pid=3606 comm="syz-executor622" capability=39 scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=capability2 permissive=1 [ 52.730029][ T26] audit: type=1400 audit(1668043201.771:77): avc: denied { map_create } for pid=3606 comm="syz-executor622" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 52.749873][ T26] audit: type=1400 audit(1668043201.771:78): avc: denied { read write } for pid=3606 comm="syz-executor622" name="raw-gadget" dev="devtmpfs" ino=731 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 52.773921][ T26] audit: type=1400 audit(1668043201.771:79): avc: denied { open } for pid=3606 comm="syz-executor622" path="/dev/raw-gadget" dev="devtmpfs" ino=731 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 52.797798][ T26] audit: type=1400 audit(1668043201.771:80): avc: denied { ioctl } for pid=3606 comm="syz-executor622" path="/dev/raw-gadget" dev="devtmpfs" ino=731 ioctlcmd=0x5500 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fffec3e57f0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7fffec3e47e0) = 18 [ 52.978870][ T25] usb 1-1: new high-speed USB device number 2 using dummy_hcd ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fffec3e57f0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7fffec3e47e0) = 18 [ 53.218769][ T25] usb 1-1: Using ep0 maxpacket: 8 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fffec3e57f0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7fffec3e47e0) = 9 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fffec3e57f0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7fffec3e47e0) = 70 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fffec3e57f0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7fffec3e47e0) = 4 [ 53.339473][ T25] usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fffec3e57f0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7fffec3e47e0) = 8 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fffec3e57f0) = 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, 0x7fffec3e47e0) = 0 [ 53.429356][ T25] usb 1-1: New USB device found, idVendor=0bd3, idProduct=0d55, bcdDevice=69.6a [ 53.438426][ T25] usb 1-1: New USB device strings: Mfr=64, Product=0, SerialNumber=0 [ 53.446553][ T25] usb 1-1: Manufacturer: syz [ 53.462818][ T25] usb 1-1: config 0 descriptor?? ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7fffec3e5820) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7fffec3e4810) = 4 [ 53.719017][ T25] usb 1-1: Found UVC 0.00 device (0bd3:0d55) [ 53.726110][ T25] uvcvideo 1-1:0.0: Entity type for entity ΣΏ was not initialized! [ 53.734947][ T25] ------------[ cut here ]------------ [ 53.740623][ T25] WARNING: CPU: 1 PID: 25 at drivers/media/mc/mc-entity.c:1021 media_create_pad_link+0x4de/0x650 [ 53.751378][ T25] Modules linked in: [ 53.755283][ T25] CPU: 1 PID: 25 Comm: kworker/1:1 Not tainted 6.1.0-rc4-syzkaller-00015-gf141df371335 #0 [ 53.765392][ T25] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 53.775544][ T25] Workqueue: usb_hub_wq hub_event [ 53.780644][ T25] RIP: 0010:media_create_pad_link+0x4de/0x650 [ 53.786713][ T25] Code: 38 a4 68 fb 44 89 e0 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f c3 e8 21 a4 68 fb 0f 0b 41 bc ea ff ff ff eb da e8 12 a4 68 fb <0f> 0b 41 bc ea ff ff ff eb cb e8 03 a4 68 fb 0f 0b 41 bc ea ff ff [ 53.806439][ T25] RSP: 0018:ffffc90000c1eeb8 EFLAGS: 00010293 [ 53.812549][ T25] RAX: 0000000000000000 RBX: ffff8880733ca880 RCX: 0000000000000000 [ 53.820590][ T25] RDX: ffff888016ea4100 RSI: ffffffff8613305e RDI: 0000000000000002 [ 53.828589][ T25] RBP: ffff8880733ca080 R08: 0000000000000002 R09: 0000000000000000 [ 53.836648][ T25] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 53.844682][ T25] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8880733ca080 [ 53.852713][ T25] FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000 [ 53.861689][ T25] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 exit_group(0) = ? [ 53.868292][ T25] CR2: 00007f2feb625111 CR3: 000000007ce86000 CR4: 00000000003506e0 [ 53.876308][ T25] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 53.884325][ T25] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 53.892335][ T25] Call Trace: [ 53.896508][ T25] [ 53.899559][ T25] uvc_mc_register_entities+0x5cd/0x910 [ 53.905129][ T25] uvc_probe.cold+0x1e40/0x2583 [ 53.910043][ T25] ? uvc_register_video_device+0x530/0x530 +++ exited with 0 +++ [ 53.915870][ T25] ? _raw_spin_unlock_irqre