Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
5	32	cryptography.hazmat.backends.openssl.dh._dh_params_dup	call site: {node_id}	cryptography.hazmat.backends.openssl.backend.Backend.openssl_assert
1	0	EP	call site: {node_id}	atheris.FuzzedDataProvider
1	5	cryptography.hazmat.backends.openssl.backend.Backend.openssl_assert	call site: {node_id}	cryptography.hazmat.bindings.openssl.binding._consume_errors
1	11	cryptography.hazmat.bindings.openssl.binding._consume_errors	call site: {node_id}	cryptography.hazmat.bindings.openssl.binding._errors_with_text
1	17	cryptography.hazmat.bindings.openssl.binding._errors_with_text	call site: {node_id}	typing.NamedTuple.__init__
1	24	cryptography.hazmat.backends.openssl.backend.Backend.generate_dh_parameters	call site: {node_id}	fdp.ConsumeBool
1	45	...fuzz_dh.TestInput	call site: {node_id}	cryptography.hazmat.backends.openssl.dh._DHPrivateKey.public_key
1	58	cryptography.hazmat.backends.openssl.dh._get_dh_num_bits	call site: {node_id}	cryptography.hazmat.backends.openssl.dh._DHPrivateKey.exchange
1	64	cryptography.hazmat.backends.openssl.dh._DHPrivateKey.exchange	call site: {node_id}	cryptography.hazmat.backends.openssl.backend.Backend._consume_errors_with_text
1	76	...fuzz_dh.TestInput	call site: {node_id}	cryptography.utils._check_bytes
1	93	cryptography.hazmat.backends.openssl.hmac._HMACContext.__init__	call site: {node_id}	.len

Fuzzer calltree


         ...fuzz_dh.TestInput

[function] [call site] 00000


           atheris.FuzzedDataProvider

[function] [call site] 00001


           cryptography.hazmat.primitives.asymmetric.dh.generate_parameters

[function] [call site] 00002


             cryptography.hazmat.backends.openssl.backend.Backend.generate_dh_parameters

[function] [call site] 00003


               cryptography.hazmat.backends.openssl.backend.Backend.openssl_assert

[function] [call site] 00004


                 cryptography.hazmat.bindings.openssl.binding._openssl_assert

[function] [call site] 00005


                   cryptography.hazmat.bindings.openssl.binding._consume_errors

[function] [call site] 00006


                     lib.ERR_get_error

[function] [call site] 00007


                     lib.ERR_GET_LIB

[function] [call site] 00008


                     lib.ERR_GET_REASON

[function] [call site] 00009


                     cryptography.hazmat.bindings.openssl.binding._OpenSSLError.__init__

[function] [call site] 00010


                     errors.append

[function] [call site] 00011


                   cryptography.hazmat.bindings.openssl.binding._errors_with_text

[function] [call site] 00012


                     cryptography.hazmat.bindings._openssl.ffi.new

[function] [call site] 00013


                     
                      .len

[function] [call site] 00014


                     cryptography.hazmat.bindings._openssl.lib.ERR_error_string_n

[function] [call site] 00015


                     cryptography.hazmat.bindings._openssl.ffi.string

[function] [call site] 00016


                     errors_with_text.append

[function] [call site] 00017


                     typing.NamedTuple.__init__

[function] [call site] 00018


               cryptography.hazmat.bindings._openssl.ffi.gc

[function] [call site] 00019


               cryptography.hazmat.backends.openssl.backend.Backend._consume_errors_with_text

[function] [call site] 00020


                 cryptography.hazmat.bindings.openssl.binding._consume_errors_with_text

[function] [call site] 00021


                   cryptography.hazmat.bindings.openssl.binding._consume_errors

[function] [call site] 00022


                   cryptography.hazmat.bindings.openssl.binding._errors_with_text

[function] [call site] 00023


               cryptography.hazmat.backends.openssl.dh._DHParameters.__init__

[function] [call site] 00024


           fdp.ConsumeBool

[function] [call site] 00025


           fdp.ConsumeInt

[function] [call site] 00026


           cryptography.hazmat.backends.openssl.dh._DHParameters.generate_private_key

[function] [call site] 00027


             cryptography.hazmat.backends.openssl.backend.Backend.generate_dh_private_key

[function] [call site] 00028


               cryptography.hazmat.backends.openssl.dh._dh_params_dup

[function] [call site] 00029


                 lib.DHparams_dup

[function] [call site] 00030


                 cryptography.hazmat.backends.openssl.backend.Backend.openssl_assert

[function] [call site] 00031


                 cryptography.hazmat.bindings._openssl.ffi.gc

[function] [call site] 00032


                 cryptography.hazmat.bindings._openssl.ffi.new

[function] [call site] 00033


                 lib.DH_get0_pqg

[function] [call site] 00034


                 lib.BN_dup

[function] [call site] 00035


                 lib.DH_set0_pqg

[function] [call site] 00036


                 cryptography.hazmat.backends.openssl.backend.Backend.openssl_assert

[function] [call site] 00037


               cryptography.hazmat.backends.openssl.backend.Backend.openssl_assert

[function] [call site] 00038


               cryptography.hazmat.backends.openssl.backend.Backend._dh_cdata_to_evp_pkey

[function] [call site] 00039


                 cryptography.hazmat.backends.openssl.backend.Backend._create_evp_pkey_gc

[function] [call site] 00040


                   cryptography.hazmat.backends.openssl.backend.Backend.openssl_assert

[function] [call site] 00041


                   cryptography.hazmat.bindings._openssl.ffi.gc

[function] [call site] 00042


                 cryptography.hazmat.backends.openssl.backend.Backend.openssl_assert

[function] [call site] 00043


               cryptography.hazmat.backends.openssl.dh._DHPrivateKey.__init__

[function] [call site] 00044


           cryptography.hazmat.backends.openssl.dh._DHParameters.generate_private_key

[function] [call site] 00045


           cryptography.hazmat.backends.openssl.dh._DHPrivateKey.public_key

[function] [call site] 00046


             cryptography.hazmat.backends.openssl.dh._dh_params_dup

[function] [call site] 00047


             cryptography.hazmat.bindings._openssl.ffi.new

[function] [call site] 00048


             cryptography.hazmat.backends.openssl.backend.Backend.openssl_assert

[function] [call site] 00049


             cryptography.hazmat.backends.openssl.backend.Backend.openssl_assert

[function] [call site] 00050


             cryptography.hazmat.backends.openssl.backend.Backend.openssl_assert

[function] [call site] 00051


             cryptography.hazmat.backends.openssl.backend.Backend._dh_cdata_to_evp_pkey

[function] [call site] 00052


             cryptography.hazmat.backends.openssl.dh._DHPublicKey.__init__

[function] [call site] 00053


               cryptography.hazmat.backends.openssl.dh._get_dh_num_bits

[function] [call site] 00054


                 cryptography.hazmat.bindings._openssl.ffi.new

[function] [call site] 00055


                 backend._lib.DH_get0_pqg

[function] [call site] 00056


                 cryptography.hazmat.backends.openssl.backend.Backend.openssl_assert

[function] [call site] 00057


                 backend._lib.BN_num_bits

[function] [call site] 00058


           cryptography.hazmat.backends.openssl.dh._DHPrivateKey.exchange

[function] [call site] 00059


             
              .isinstance

[function] [call site] 00060


             cryptography.hazmat.backends.openssl.backend.Backend.openssl_assert

[function] [call site] 00061


             cryptography.hazmat.bindings._openssl.ffi.gc

[function] [call site] 00062


             cryptography.hazmat.backends.openssl.backend.Backend.openssl_assert

[function] [call site] 00063


             cryptography.hazmat.backends.openssl.dh._DHPrivateKey._exchange_assert

[function] [call site] 00064


               cryptography.hazmat.backends.openssl.backend.Backend._consume_errors_with_text

[function] [call site] 00065


             cryptography.hazmat.bindings._openssl.ffi.new

[function] [call site] 00066


             cryptography.hazmat.backends.openssl.dh._DHPrivateKey._exchange_assert

[function] [call site] 00067


             cryptography.hazmat.backends.openssl.backend.Backend.openssl_assert

[function] [call site] 00068


             cryptography.hazmat.bindings._openssl.ffi.new

[function] [call site] 00069


             cryptography.hazmat.backends.openssl.backend.Backend.openssl_assert

[function] [call site] 00070


             cryptography.hazmat.bindings._openssl.ffi.buffer

[function] [call site] 00071


             
              .len

[function] [call site] 00072


           cryptography.hazmat.backends.openssl.dh._DHPrivateKey.public_key

[function] [call site] 00073


           cryptography.hazmat.backends.openssl.dh._DHPrivateKey.exchange

[function] [call site] 00074


           fdp.ConsumeBytes

[function] [call site] 00075


           cryptography.hazmat.primitives.kdf.hkdf.HKDF.__init__

[function] [call site] 00076


             cryptography.utils._check_bytes

[function] [call site] 00077


               
                .isinstance

[function] [call site] 00078


             cryptography.hazmat.primitives.kdf.hkdf.HKDFExpand.__init__

[function] [call site] 00079


               cryptography.utils._check_bytes

[function] [call site] 00080


           cryptography.hazmat.primitives.kdf.hkdf.HKDF.derive

[function] [call site] 00081


             cryptography.utils._check_byteslike

[function] [call site] 00082


               
                .memoryview

[function] [call site] 00083


             cryptography.hazmat.primitives.kdf.hkdf.HKDF._extract

[function] [call site] 00084


               cryptography.hazmat.primitives.hmac.HMAC.__init__

[function] [call site] 00085


                 
                  .isinstance

[function] [call site] 00086


                 cryptography.hazmat.backends.openssl.backend.Backend.create_hmac_ctx

[function] [call site] 00087


                   cryptography.hazmat.backends.openssl.hmac._HMACContext.__init__

[function] [call site] 00088


                     cryptography.hazmat.backends.openssl.backend.Backend.openssl_assert

[function] [call site] 00089


                     cryptography.hazmat.bindings._openssl.ffi.gc

[function] [call site] 00090


                     cryptography.hazmat.backends.openssl.backend.Backend._evp_md_from_algorithm

[function] [call site] 00091


                       algorithm.name.encode

[function] [call site] 00092


                     cryptography.hazmat.bindings._openssl.ffi.from_buffer

[function] [call site] 00093


                     
                      .len

[function] [call site] 00094


                     cryptography.hazmat.backends.openssl.backend.Backend.openssl_assert

[function] [call site] 00095


               cryptography.hazmat.primitives.hmac.HMAC.update

[function] [call site] 00096


                 cryptography.utils._check_byteslike

[function] [call site] 00097


                 cryptography.hazmat.backends.openssl.hmac._HMACContext.update

[function] [call site] 00098


                   cryptography.hazmat.bindings._openssl.ffi.from_buffer

[function] [call site] 00099


                   
                    .len

[function] [call site] 00100


                   cryptography.hazmat.backends.openssl.backend.Backend.openssl_assert

[function] [call site] 00101


               cryptography.hazmat.primitives.hmac.HMAC.finalize

[function] [call site] 00102


                 cryptography.hazmat.backends.openssl.hmac._HMACContext.finalize

[function] [call site] 00103


                   cryptography.hazmat.bindings._openssl.ffi.new

[function] [call site] 00104


                   cryptography.hazmat.bindings._openssl.ffi.new

[function] [call site] 00105


                   cryptography.hazmat.backends.openssl.backend.Backend.openssl_assert

[function] [call site] 00106


                   cryptography.hazmat.backends.openssl.backend.Backend.openssl_assert

[function] [call site] 00107


                   cryptography.hazmat.bindings._openssl.ffi.buffer

[function] [call site] 00108


             cryptography.hazmat.primitives.kdf.hkdf.HKDFExpand.derive

[function] [call site] 00109


               cryptography.utils._check_byteslike

[function] [call site] 00110


               cryptography.hazmat.primitives.kdf.hkdf.HKDFExpand._expand

[function] [call site] 00111


                 
                  .len

[function] [call site] 00112


                 cryptography.hazmat.primitives.hmac.HMAC.__init__

[function] [call site] 00113


                 cryptography.hazmat.primitives.hmac.HMAC.update

[function] [call site] 00114


                 cryptography.hazmat.primitives.hmac.HMAC.update

[function] [call site] 00115


                 
                  .bytes

[function] [call site] 00116


                 cryptography.hazmat.primitives.hmac.HMAC.update

[function] [call site] 00117


                 cryptography.hazmat.primitives.hmac.HMAC.finalize

[function] [call site] 00118


                 output.append

[function] [call site] 00119


           cryptography.hazmat.primitives.kdf.hkdf.HKDF.__init__

[function] [call site] 00120


           cryptography.hazmat.primitives.kdf.hkdf.HKDF.derive

[function] [call site] 00121