./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor3909712023 <...> [ 31.586937][ T3186] 8021q: adding VLAN 0 to HW filter on device bond0 [ 31.598228][ T3186] eql: remember to turn off Van-Jacobson compression on your slave devices Starting sshd: OK syzkaller syzkaller login: [ 39.933018][ T26] kauditd_printk_skb: 37 callbacks suppressed [ 39.933035][ T26] audit: type=1400 audit(1668041167.440:73): avc: denied { transition } for pid=3394 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 [ 39.961884][ T26] audit: type=1400 audit(1668041167.450:74): avc: denied { write } for pid=3394 comm="sh" path="pipe:[28152]" dev="pipefs" ino=28152 scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:initrc_t tclass=fifo_file permissive=1 Warning: Permanently added '10.128.0.194' (ECDSA) to the list of known hosts. execve("./syz-executor3909712023", ["./syz-executor3909712023"], 0x7ffff9575a40 /* 10 vars */) = 0 brk(NULL) = 0x555556650000 brk(0x555556650c40) = 0x555556650c40 arch_prctl(ARCH_SET_FS, 0x555556650300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor3909712023", 4096) = 28 brk(0x555556671c40) = 0x555556671c40 brk(0x555556672000) = 0x555556672000 mprotect(0x7f656c93e000, 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, 0x7ffd945afa10) = 0 ioctl(3, UI_DEV_CREATE or USB_RAW_IOCTL_RUN, 0) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd945afa10) = 0 [ 49.247943][ T26] audit: type=1400 audit(1668041176.750:75): avc: denied { execmem } for pid=3607 comm="syz-executor390" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 49.273843][ T26] audit: type=1400 audit(1668041176.760:76): avc: denied { bpf } for pid=3607 comm="syz-executor390" capability=39 scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=capability2 permissive=1 [ 49.295194][ T26] audit: type=1400 audit(1668041176.760:77): avc: denied { map_create } for pid=3607 comm="syz-executor390" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=bpf permissive=1 [ 49.314873][ T26] audit: type=1400 audit(1668041176.760:78): avc: denied { read write } for pid=3607 comm="syz-executor390" 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 [ 49.338961][ T26] audit: type=1400 audit(1668041176.760:79): avc: denied { open } for pid=3607 comm="syz-executor390" 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 [ 49.362847][ T26] audit: type=1400 audit(1668041176.760:80): avc: denied { ioctl } for pid=3607 comm="syz-executor390" 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, 0x7ffd945afa10) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd945aea00) = 18 [ 49.538524][ T3271] usb 1-1: new high-speed USB device number 2 using dummy_hcd ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd945afa10) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd945aea00) = 18 [ 49.778436][ T3271] usb 1-1: Using ep0 maxpacket: 8 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd945afa10) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd945aea00) = 9 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd945afa10) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd945aea00) = 70 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd945afa10) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd945aea00) = 4 [ 49.899151][ T3271] usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd945afa10) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd945aea00) = 8 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd945afa10) = 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, 0x7ffd945aea00) = 0 [ 49.989222][ T3271] usb 1-1: New USB device found, idVendor=0bd3, idProduct=0d55, bcdDevice=69.6a [ 49.998386][ T3271] usb 1-1: New USB device strings: Mfr=64, Product=0, SerialNumber=0 [ 50.006474][ T3271] usb 1-1: Manufacturer: syz [ 50.022059][ T3271] usb 1-1: config 0 descriptor?? ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd945afa40) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd945aea30) = 4 [ 50.279013][ T3271] usb 1-1: Found UVC 0.00 device (0bd3:0d55) [ 50.286159][ T3271] uvcvideo 1-1:0.0: Entity type for entity ΣΏ was not initialized! [ 50.294808][ T3271] ------------[ cut here ]------------ [ 50.300326][ T3271] WARNING: CPU: 0 PID: 3271 at drivers/media/mc/mc-entity.c:1021 media_create_pad_link+0x4de/0x650 [ 50.311107][ T3271] Modules linked in: [ 50.315028][ T3271] CPU: 0 PID: 3271 Comm: kworker/0:3 Not tainted 6.1.0-rc4-syzkaller-00015-gf141df371335 #0 [ 50.325179][ T3271] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 50.335309][ T3271] Workqueue: usb_hub_wq hub_event [ 50.340431][ T3271] RIP: 0010:media_create_pad_link+0x4de/0x650 [ 50.346613][ T3271] 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 [ 50.366524][ T3271] RSP: 0018:ffffc90003626eb8 EFLAGS: 00010293 [ 50.372647][ T3271] RAX: 0000000000000000 RBX: ffff8880741c3880 RCX: 0000000000000000 [ 50.380715][ T3271] RDX: ffff888021734040 RSI: ffffffff8613305e RDI: 0000000000000002 [ 50.388803][ T3271] RBP: ffff888079023880 R08: 0000000000000002 R09: 0000000000000000 [ 50.396785][ T3271] R10: 0000000000000000 R11: 1ffffffff2008860 R12: 0000000000000000 [ 50.404846][ T3271] R13: 0000000000000000 R14: 0000000000000000 R15: ffff888079023880 [ 50.412881][ T3271] FS: 0000000000000000(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000 [ 50.421897][ T3271] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 exit_group(0) = ? [ 50.428573][ T3271] CR2: 00007ffe76114ff8 CR3: 0000000020f2b000 CR4: 00000000003506f0 [ 50.436562][ T3271] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.444616][ T3271] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.452643][ T3271] Call Trace: [ 50.455917][ T3271] [ 50.458926][ T3271] uvc_mc_register_entities+0x5cd/0x910 [ 50.464508][ T3271] uvc_probe.cold+0x1e40/0x2583 [ 50.469420][ T3271] ? uvc_register_video_device+0x530/0x530 +++ exited with 0 +++ [ 50.475243][ T3271] ? _raw_spin_unlock_irqrestore+0