./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor327763560 <...> Warning: Permanently added '10.128.0.104' (ECDSA) to the list of known hosts. execve("./syz-executor327763560", ["./syz-executor327763560"], 0x7ffe54e686d0 /* 10 vars */) = 0 brk(NULL) = 0x55555710d000 brk(0x55555710dc40) = 0x55555710dc40 arch_prctl(ARCH_SET_FS, 0x55555710d300) = 0 uname({sysname="Linux", nodename="syzkaller", ...}) = 0 readlink("/proc/self/exe", "/root/syz-executor327763560", 4096) = 27 brk(0x55555712ec40) = 0x55555712ec40 brk(0x55555712f000) = 0x55555712f000 mprotect(0x7f62b6eba000, 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 openat(AT_FDCWD, "/dev/raw-gadget", O_RDWR) = 3 ioctl(3, USB_RAW_IOCTL_INIT, 0x7ffd5eca7de0) = 0 ioctl(3, UI_DEV_CREATE or USB_RAW_IOCTL_RUN, 0) = 0 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd5eca7de0) = 0 [ 55.498823][ T26] audit: type=1400 audit(1672604741.962:75): avc: denied { execmem } for pid=5064 comm="syz-executor327" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1 [ 55.528448][ T26] audit: type=1400 audit(1672604741.962:76): avc: denied { read write } for pid=5064 comm="syz-executor327" name="raw-gadget" dev="devtmpfs" ino=732 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 55.553189][ T26] audit: type=1400 audit(1672604741.962:77): avc: denied { open } for pid=5064 comm="syz-executor327" path="/dev/raw-gadget" dev="devtmpfs" ino=732 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 55.576973][ T26] audit: type=1400 audit(1672604741.962:78): avc: denied { ioctl } for pid=5064 comm="syz-executor327" path="/dev/raw-gadget" dev="devtmpfs" ino=732 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, 0x7ffd5eca7de0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd5eca6dd0) = 18 [ 55.768372][ T25] usb 1-1: new high-speed USB device number 2 using dummy_hcd ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd5eca7de0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd5eca6dd0) = 18 [ 56.008320][ T25] usb 1-1: Using ep0 maxpacket: 8 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd5eca7de0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd5eca6dd0) = 9 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd5eca7de0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd5eca6dd0) = 36 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd5eca7de0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd5eca6dd0) = 4 [ 56.128833][ T25] usb 1-1: config 0 has an invalid interface number: 164 but max is 0 [ 56.137196][ T25] usb 1-1: config 0 has no interface number 0 [ 56.143381][ T25] usb 1-1: config 0 interface 164 altsetting 0 bulk endpoint 0x1 has invalid maxpacket 16 [ 56.153361][ T25] usb 1-1: config 0 interface 164 altsetting 0 bulk endpoint 0x8B has invalid maxpacket 64 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd5eca7de0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd5eca6dd0) = 8 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd5eca7de0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd5eca6dd0) = 8 ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd5eca7de0) = 0 ioctl(3, USB_RAW_IOCTL_EP0_WRITE, 0x7ffd5eca6dd0) = 8 [ 56.318439][ T25] usb 1-1: New USB device found, idVendor=10cf, idProduct=5501, bcdDevice=14.b2 [ 56.327531][ T25] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 [ 56.335600][ T25] usb 1-1: Product: syz [ 56.339798][ T25] usb 1-1: Manufacturer: syz [ 56.344377][ T25] usb 1-1: SerialNumber: syz [ 56.353771][ T25] usb 1-1: config 0 descriptor?? ioctl(3, USB_RAW_IOCTL_EVENT_FETCH, 0x7ffd5eca7de0) = 0 ioctl(3, USB_RAW_IOCTL_VBUS_DRAW, 0) = 0 ioctl(3, USB_RAW_IOCTL_CONFIGURE, 0) = 0 ioctl(3, USB_RAW_IOCTL_EP_ENABLE, 0x7f62b6ec03ac) = -1 EINVAL (Invalid argument) ioctl(3, USB_RAW_IOCTL_EP_ENABLE, 0x7f62b6ec03bc) = -1 EINVAL (Invalid argument) ioctl(3, USB_RAW_IOCTL_EP0_READ, 0x7ffd5eca6dd0) = 0 [ 56.379811][ T5064] raw-gadget.0 gadget.0: fail, usb_ep_enable returned -22 [ 56.387751][ T5064] raw-gadget.0 gadget.0: fail, usb_ep_enable returned -22 [ 56.403958][ T25] ------------[ cut here ]------------ [ 56.409622][ T25] usb 1-1: BOGUS urb xfer, pipe 1 != type 3 [ 56.415818][ T25] WARNING: CPU: 1 PID: 25 at drivers/usb/core/urb.c:504 usb_submit_urb+0xed6/0x1880 [ 56.425265][ T25] Modules linked in: [ 56.429217][ T25] CPU: 1 PID: 25 Comm: kworker/1:1 Not tainted 6.2.0-rc1-syzkaller-00095-ge4cf7c25bae5 #0 [ 56.439148][ T25] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 56.449269][ T25] Workqueue: usb_hub_wq hub_event [ 56.454301][ T25] RIP: 0010:usb_submit_urb+0xed6/0x1880 [ 56.460175][ T25] Code: 7c 24 18 e8 2c 6c 80 fb 48 8b 7c 24 18 e8 82 2d 01 ff 41 89 d8 44 89 e1 4c 89 ea 48 89 c6 48 c7 c7 c0 85 fa 8a e8 0f 85 be 03 <0f> 0b e9 58 f8 ff ff e8 fe 6b 80 fb 48 81 c5 c0 05 00 00 e9 84 f7 [ 56.479895][ T25] RSP: 0018:ffffc90000c1ee70 EFLAGS: 00010286 [ 56.486594][ T25] RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 [ 56.494677][ T25] RDX: ffff88801357a100 RSI: ffffffff8165927c RDI: fffff52000183dc0 [ 56.502722][ T25] RBP: ffff88801f4ab900 R08: 0000000000000005 R09: 0000000000000000 [ 56.510736][ T25] R10: 0000000080000000 R11: 0000000000000000 R12: 0000000000000001 [ 56.518862][ T25] R13: ffff88802ac8cdc0 R14: 0000000000000002 R15: ffff8880201bbf00 [ 56.526833][ T25] FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 [ 56.535803][ T25] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 56.542462][ T25] CR2: 00005583df512590 CR3: 000000000c48e000 CR4: 00000000003506e0 [ 56.550482][ T25] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 56.559637][ T25] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 56.567600][ T25] Call Trace: [ 56.571200][ T25] [ 56.574166][ T25] ? __init_swait_queue_head+0xca/0x150 exit_group(0) = ? +++ exited with 0 +++ [ 56.5798