syz_mount_image$ext4(0x0, &(0x7f0000000100)='./file0\x00', 0x0, 0x0, 0x0, 0x0, 0x0)
r0 = syz_open_dev$sg(&(0x7f0000000040), 0x0, 0x0)
ioctl$SG_GET_REQUEST_TABLE(r0, 0x227b, &(0x7f0000000100))
readv(r0, &(0x7f0000000a00)=[{&(0x7f0000000400)=""/252, 0x23}], 0x1)