Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
107	8	Cmos::new	call site: 00008	Tap::open_named
70	134	Cmos::write	call site: 00134	BatEntry::write_bat_entries
9	206	Cmos::write	call site: 00206	TdHob::add_payload
5	0	EP	call site: 00000
4	129	Cmos::read	call site: 00129	Cmos::write
1	116	Cmos::read	call site: 00116

Fuzzer calltree


         fuzz_target

[function] [call site] 00000


           &[u8]::len

[function] [call site] 00001


             std::mem::size_of::<virtio_net_hdr_v1>

[function] [call site] 00002


           copy_from_slice

[function] [call site] 00003


           copy_from_slice

[function] [call site] 00004


           Cmos::new

[function] [call site] 00005


             std::cmp::min

[function] [call site] 00006


             u64::saturating_sub

[function] [call site] 00007


             std::cmp::min

[function] [call site] 00008


           u64::from_le_bytes

[function] [call site] 00009


           u64::from_le_bytes

[function] [call site] 00010


           Tap::new

[function] [call site] 00011


             Tap::open_named

[function] [call site] 00012


               build_terminated_if_name

[function] [call site] 00013


                 Tap::if_name_as_bytes

[function] [call site] 00014


                 &[u8]::len

[function] [call site] 00015

Err

[function] [call site] 00016


                 Error::IfnameTooLong

[function] [call site] 00017


                 PvPanicDevice::event_to_string

[function] [call site] 00018


                   PvPanicDevice::event_to_string

[function] [call site] 00019


                     PvPanicDevice::event_to_string

[function] [call site] 00020


                     PvPanicDevice::event_to_string

[function] [call site] 00021


                     PvPanicDevice::event_to_string

[function] [call site] 00022


                   PvPanicDevice::event_to_string

[function] [call site] 00023


                   PvPanicDevice::event_to_string

[function] [call site] 00024


                 &[u8]::len

[function] [call site] 00025


                 copy_from_slice

[function] [call site] 00026

Ok

[function] [call site] 00027


               libc::open

[function] [call site] 00028


               __IncompleteArrayField::as_ptr

[function] [call site] 00029


               unwrap_or

[function] [call site] 00030

Err

[function] [call site] 00031


               Error::OpenTun

[function] [call site] 00032


               IoError::last_os_error

[function] [call site] 00033


               File::from_raw_fd

[function] [call site] 00034


               vmm_sys_util::ioctl::ioctl_with_mut_ref

[function] [call site] 00035


                 vmm_sys_util::ioctl::ioctl_with_mut_ref

[function] [call site] 00036

Err

[function] [call site] 00037


                 Error::IoctlError

[function] [call site] 00038


                 IoError::last_os_error

[function] [call site] 00039

Ok

[function] [call site] 00040


               net_gen::TUNGETFEATURES

[function] [call site] 00041

Err

[function] [call site] 00042


               Error::GetFeatures

[function] [call site] 00043


               IoError::last_os_error

[function] [call site] 00044

Err

[function] [call site] 00045


               TxVirtio::default

[function] [call site] 00046


                 Tap::new

[function] [call site] 00047


                   Tap::open_named

[function] [call site] 00048


               as_mut

[function] [call site] 00049


               Result::len

[function] [call site] 00050


                 std::mem::size_of::<virtio_net_hdr_v1>

[function] [call site] 00051


               copy_from_slice

[function] [call site] 00052


               __IncompleteArrayField::as_slice

[function] [call site] 00053


                 ::std::slice::from_raw_parts

[function] [call site] 00054


                 __IncompleteArrayField::as_ptr

[function] [call site] 00055


               vmm_sys_util::ioctl::ioctl_with_mut_ref

[function] [call site] 00056


               net_gen::TUNSETIFF

[function] [call site] 00057

Err

[function] [call site] 00058


               Error::ConfigureTap

[function] [call site] 00059


               IoError::last_os_error

[function] [call site] 00060


               to_vec

[function] [call site] 00061


               Result::truncate

[function] [call site] 00062


               Result::len

[function] [call site] 00063

Ok

[function] [call site] 00064


           Result::unwrap

[function] [call site] 00065


           &[u8]::len

[function] [call site] 00066


           KvmVm::get_preferred_target

[function] [call site] 00067


             RateLimiterConfig::try_into

[function] [call site] 00068


               unwrap_or_default

[function] [call site] 00069


               unwrap_or_default

[function] [call site] 00070


               rate_limiter::RateLimiter::new

[function] [call site] 00071


                 TokenBucket::new

[function] [call site] 00072

gcd

[function] [call site] 00073


                   Some

[function] [call site] 00074


                   Instant::now

[function] [call site] 00075


                 TokenBucket::new

[function] [call site] 00076


                 Tap::new

[function] [call site] 00077


                   Tap::open_named

[function] [call site] 00078


                 Tap::as_raw_fd

[function] [call site] 00079


                   Tap::as_raw_fd

[function] [call site] 00080


                 libc::fcntl

[function] [call site] 00081


                   libc::fcntl

[function] [call site] 00082


                   libc::fcntl

[function] [call site] 00083


                 libc::fcntl

[function] [call site] 00084

Err

[function] [call site] 00085


                 std::io::Error::last_os_error

[function] [call site] 00086

Ok

[function] [call site] 00087


                 Tap::new

[function] [call site] 00088


                   Tap::open_named

[function] [call site] 00089


                 Tap::new

[function] [call site] 00090


                   Tap::open_named

[function] [call site] 00091


               unwrap_or

[function] [call site] 00092


               unwrap_or

[function] [call site] 00093


             KvmVm::get_preferred_target

[function] [call site] 00094


               RateLimiterConfig::try_into

[function] [call site] 00095


               KvmVm::get_preferred_target

[function] [call site] 00096


               map_err

[function] [call site] 00097


               vm::HypervisorVmError::GetPreferredTarget

[function] [call site] 00098


               RateLimiterConfig::try_into

[function] [call site] 00099


                 unwrap_or_default

[function] [call site] 00100


                 unwrap_or_default

[function] [call site] 00101


                 rate_limiter::RateLimiter::new

[function] [call site] 00102


                 unwrap_or

[function] [call site] 00103


                 unwrap_or

[function] [call site] 00104


               RateLimiterConfig::try_into

[function] [call site] 00105

Ok

[function] [call site] 00106


             map_err

[function] [call site] 00107


             vm::HypervisorVmError::GetPreferredTarget

[function] [call site] 00108


             RateLimiterConfig::try_into

[function] [call site] 00109


             RateLimiterConfig::try_into

[function] [call site] 00110

Ok

[function] [call site] 00111


           vm::Result::unwrap_or

[function] [call site] 00112


           KvmVm::get_preferred_target

[function] [call site] 00113


           vm::Result::unwrap_or

[function] [call site] 00114


           Cmos::read

[function] [call site] 00115


             String::len

[function] [call site] 00116


               std::mem::size_of::<virtio_net_hdr_v1>

[function] [call site] 00117


             mem::zeroed

[function] [call site] 00118


             libc::clock_gettime

[function] [call site] 00119


             mem::zeroed

[function] [call site] 00120


             libc::gmtime_r

[function] [call site] 00121


             C::m::o::s::::::::r::e::a::d::to_bcd

[function] [call site] 00122


             C::m::o::s::::::::r::e::a::d::to_bcd

[function] [call site] 00123


             C::m::o::s::::::::r::e::a::d::to_bcd

[function] [call site] 00124


             C::m::o::s::::::::r::e::a::d::to_bcd

[function] [call site] 00125


             C::m::o::s::::::::r::e::a::d::to_bcd

[function] [call site] 00126


             C::m::o::s::::::::r::e::a::d::to_bcd

[function] [call site] 00127


             C::m::o::s::::::::r::e::a::d::to_bcd

[function] [call site] 00128


             C::m::o::s::::::::r::e::a::d::to_bcd

[function] [call site] 00129


           KvmVm::get_preferred_target

[function] [call site] 00130


           vm::Result::unwrap_or

[function] [call site] 00131


           Cmos::write

[function] [call site] 00132


             String::len

[function] [call site] 00133


             write

[function] [call site] 00134

Err

[function] [call site] 00135


               Sector::new

[function] [call site] 00136


                 TxVirtio::default

[function] [call site] 00137


                   Tap::new

[function] [call site] 00138


                 KvmVm::get_preferred_target

[function] [call site] 00139


                   RateLimiterConfig::try_into

[function] [call site] 00140


                   KvmVm::get_preferred_target

[function] [call site] 00141


                   map_err

[function] [call site] 00142


                   vm::HypervisorVmError::GetPreferredTarget

[function] [call site] 00143


                   RateLimiterConfig::try_into

[function] [call site] 00144


                   RateLimiterConfig::try_into

[function] [call site] 00145

Ok

[function] [call site] 00146

Err

[function] [call site] 00147

Ok

[function] [call site] 00148


               KvmVm::get_preferred_target

[function] [call site] 00149


                 RateLimiterConfig::try_into

[function] [call site] 00150


                 KvmVm::get_preferred_target

[function] [call site] 00151


                 map_err

[function] [call site] 00152


                 vm::HypervisorVmError::GetPreferredTarget

[function] [call site] 00153


                 RateLimiterConfig::try_into

[function] [call site] 00154


                 RateLimiterConfig::try_into

[function] [call site] 00155

Ok

[function] [call site] 00156

Err

[function] [call site] 00157


               align

[function] [call site] 00158


                 div_ceil

[function] [call site] 00159


               checked_add

[function] [call site] 00160


               ok_or

[function] [call site] 00161


               QcowFile::set_len

[function] [call site] 00162

Err

[function] [call site] 00163


                 std::io::Error::other

[function] [call site] 00164


               std::io::Result::map_err

[function] [call site] 00165


               vhdx::vhdx_bat::BatEntry

[function] [call site] 00166


               BatEntry::write_bat_entries

[function] [call site] 00167


                 Result::len

[function] [call site] 00168


                 FixedVhd::seek

[function] [call site] 00169


                   FixedVhd::seek

[function] [call site] 00170


                     FixedVhd::seek

[function] [call site] 00171

Ok

[function] [call site] 00172

Err

[function] [call site] 00173

Ok

[function] [call site] 00174

Err

[function] [call site] 00175


                 SeekFrom::Start

[function] [call site] 00176


                 size_of::<u64>

[function] [call site] 00177


                 std::io::Result::map_err

[function] [call site] 00178


                 KvmVm::get_preferred_target

[function] [call site] 00179


                   RateLimiterConfig::try_into

[function] [call site] 00180


                   KvmVm::get_preferred_target

[function] [call site] 00181


                   map_err

[function] [call site] 00182


                   vm::HypervisorVmError::GetPreferredTarget

[function] [call site] 00183


                   RateLimiterConfig::try_into

[function] [call site] 00184


                   RateLimiterConfig::try_into

[function] [call site] 00185

Ok

[function] [call site] 00186

Err

[function] [call site] 00187


                 write_u64::<LittleEndian>

[function] [call site] 00188


                 map_err

[function] [call site] 00189

Ok

[function] [call site] 00190


               Result::map_err

[function] [call site] 00191


               FixedVhd::seek

[function] [call site] 00192


               SeekFrom::Start

[function] [call site] 00193


               std::io::Result::map_err

[function] [call site] 00194


               Result::write_all

[function] [call site] 00195


               map_err

[function] [call site] 00196


               FixedVhd::seek

[function] [call site] 00197


               SeekFrom::Start

[function] [call site] 00198


               std::io::Result::map_err

[function] [call site] 00199


               Result::write_all

[function] [call site] 00200


               map_err

[function] [call site] 00201

Err

[function] [call site] 00202

Err

[function] [call site] 00203

Ok

[function] [call site] 00204


             unwrap

[function] [call site] 00205


             AcpiTable::take

[function] [call site] 00206


             TdHob::add_payload

[function] [call site] 00207


               std::mem::size_of::<TdPayload>

[function] [call site] 00208


               GuestMemoryMmap::write_obj

[function] [call site] 00209


               vm_memory::GuestAddress

[function] [call site] 00210


               map_err

[function] [call site] 00211


               update_offset::<TdPayload>

[function] [call site] 00212

Ok

[function] [call site] 00213


             thread::sleep

[function] [call site] 00214


             std::time::Duration::from_millis

[function] [call site] 00215