Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
31	267	sshkey_ssh_name_from_type_nid	call site: 00267	sshkey_putb
28	35	match_pattern	call site: 00035	sshfatal
13	217	sshkey_type_is_cert	call site: 00217	sshkey_match_keyname_to_sigalgs
10	113	sshsig_peek_hashalg	call site: 00113	ssherr_libcrypto
10	251	sshkey_impl_from_key	call site: 00251	helper_by_key
8	16	sshbuf_fromb	call site: 00016	ssh_signal
6	6	log_init	call site: 00006	fprintf
4	25	sshlog	call site: 00025	match_pattern_list
4	145	hash_buffer	call site: 00145	xstrdup
3	247	sshkey_free	call site: 00247	pkcs11_key_free
2	140	ssh_digest_memory	call site: 00140	ssh_err
2	168	recallocarray	call site: 00168	__errno_location

Fuzzer calltree


         LLVMFuzzerTestOneInput

[function] [call site] 00000


           sshbuf_from

[function] [call site] 00001


             calloc

[call site] 00002


           strlen

[call site] 00003


           sshbuf_from

[function] [call site] 00004


           log_init

[function] [call site] 00005


             log_change_level

[function] [call site] 00006


             fprintf

[call site] 00007


             exit

[call site] 00008


             fprintf

[call site] 00009


             exit

[call site] 00010


             openlog

[call site] 00011


             closelog

[call site] 00012


           sshsig_verifyb

[function] [call site] 00013


             sshsig_peek_hashalg

[function] [call site] 00014


               sshbuf_fromb

[function] [call site] 00015


                 sshbuf_check_sanity

[function] [call site] 00016


                   ssh_signal

[function] [call site] 00017


                     memset

[call site] 00018


                     sigfillset

[call site] 00019


                     sigaction

[call site] 00020


                     strsignal

[call site] 00021


                     __errno_location

[call site] 00022


                     strerror

[call site] 00023


                     sshlog

[function] [call site] 00024


                       sshlogv

[function] [call site] 00025


                         strrchr

[call site] 00026


                         getpid

[call site] 00027


                         snprintf

[call site] 00028


                         match_pattern_list

[function] [call site] 00029


                           strlen

[call site] 00030


                           __ctype_b_loc

[call site] 00031


                           tolower

[call site] 00032


                           match_pattern

[function] [call site] 00033


                             strlen

[call site] 00034


                             xcalloc

[function] [call site] 00035


                               sshfatal

[function] [call site] 00036


                                 sshlogv

[function] [call site] 00037


                                   snprintf

[call site] 00038


                                   snprintf

[call site] 00039


                                   strlcpy

[function] [call site] 00040


                                   do_log

[function] [call site] 00041


                                     __errno_location

[call site] 00042


                                     snprintf

[call site] 00043


                                     vsnprintf

[call site] 00044


                                     vsnprintf

[call site] 00045


                                     snprintf

[call site] 00046


                                     strlcpy

[function] [call site] 00047


                                     strnvis

[function] [call site] 00048


                                       __ctype_b_loc

[call site] 00049

vis

[function] [call site] 00050


                                         __ctype_b_loc

[call site] 00051


                                         __ctype_b_loc

[call site] 00052

vis

[function] [call site] 00053


                                     snprintf

[call site] 00054


                                     strlen

[call site] 00055


                                     write

[call site] 00056


                                     openlog

[call site] 00057


                                     syslog

[call site] 00058


                                     closelog

[call site] 00059


                                     __errno_location

[call site] 00060


                                 cleanup_exit

[function] [call site] 00061


                                   _exit

[call site] 00062


                               sshfatal

[function] [call site] 00063


                               calloc

[call site] 00064


                               sshfatal

[function] [call site] 00065


                             xcalloc

[function] [call site] 00066


                             epsilon_closure

[function] [call site] 00067


                             memset

[call site] 00068


                             epsilon_closure

[function] [call site] 00069


                   raise

[call site] 00070


                 sshbuf_ptr

[function] [call site] 00071


                   sshbuf_check_sanity

[function] [call site] 00072


                 sshbuf_len

[function] [call site] 00073


                   sshbuf_check_sanity

[function] [call site] 00074


                 sshbuf_from

[function] [call site] 00075


                 sshbuf_set_parent

[function] [call site] 00076


                   sshbuf_check_sanity

[function] [call site] 00077


                   sshbuf_check_sanity

[function] [call site] 00078


                 sshbuf_free

[function] [call site] 00079


                   sshbuf_check_sanity

[function] [call site] 00080


                   sshbuf_free

[function] [call site] 00081


                     freezero

[function] [call site] 00082


                       explicit_bzero

[call site] 00083


                     freezero

[function] [call site] 00084


               sshsig_parse_preamble

[function] [call site] 00085


                 sshbuf_cmp

[function] [call site] 00086


                   sshbuf_ptr

[function] [call site] 00087


                   sshbuf_len

[function] [call site] 00088


                   sshbuf_ptr

[function] [call site] 00089


                   timingsafe_bcmp

[function] [call site] 00090


                 sshbuf_consume

[function] [call site] 00091


                   sshbuf_check_sanity

[function] [call site] 00092


                   sshbuf_len

[function] [call site] 00093


                 sshbuf_get_u32

[function] [call site] 00094


                   sshbuf_ptr

[function] [call site] 00095


                   sshbuf_consume

[function] [call site] 00096


                 sshlog

[function] [call site] 00097


                 sshlog

[function] [call site] 00098


               sshbuf_get_string_direct

[function] [call site] 00099


                 sshbuf_peek_string_direct

[function] [call site] 00100


                   sshbuf_ptr

[function] [call site] 00101


                   sshbuf_len

[function] [call site] 00102


                   sshbuf_len

[function] [call site] 00103


                 sshbuf_consume

[function] [call site] 00104


               sshbuf_get_string_direct

[function] [call site] 00105


               sshbuf_get_string

[function] [call site] 00106


                 sshbuf_get_string_direct

[function] [call site] 00107


               sshbuf_get_cstring

[function] [call site] 00108


                 sshbuf_peek_string_direct

[function] [call site] 00109


                 memchr

[call site] 00110


                 sshbuf_get_string_direct

[function] [call site] 00111


               sshbuf_get_string_direct

[function] [call site] 00112


               ssh_err

[function] [call site] 00113


                 ssherr_libcrypto

[function] [call site] 00114


                   OPENSSL_init_crypto

[call site] 00115


                   ERR_get_error_line_data

[call site] 00116


                   ERR_error_string_n

[call site] 00117


                   snprintf

[call site] 00118


                   sshlog

[function] [call site] 00119


                   ERR_reason_error_string

[call site] 00120


                   snprintf

[call site] 00121


                 __errno_location

[call site] 00122


                 strerror

[call site] 00123


               sshlog

[function] [call site] 00124


               sshbuf_free

[function] [call site] 00125


             sshlog

[function] [call site] 00126


             hash_buffer

[function] [call site] 00127


               memset

[call site] 00128


               sshsig_check_hashalg

[function] [call site] 00129


                 match_pattern_list

[function] [call site] 00130


                 sshlog

[function] [call site] 00131


               ssh_digest_alg_by_name

[function] [call site] 00132


                 strcasecmp

[call site] 00133


               sshlog

[function] [call site] 00134


               ssh_digest_buffer

[function] [call site] 00135


                 sshbuf_ptr

[function] [call site] 00136


                 sshbuf_len

[function] [call site] 00137


                 ssh_digest_memory

[function] [call site] 00138


                   ssh_digest_by_alg

[function] [call site] 00139


                   EVP_Digest

[call site] 00140


               ssh_err

[function] [call site] 00141


               sshlog

[function] [call site] 00142


               ssh_digest_bytes

[function] [call site] 00143


                 ssh_digest_by_alg

[function] [call site] 00144


               tohex

[function] [call site] 00145


                 xstrdup

[function] [call site] 00146


                   xmalloc

[function] [call site] 00147


                     sshfatal

[function] [call site] 00148


                     sshfatal

[function] [call site] 00149


                 xcalloc

[function] [call site] 00150


                 snprintf

[call site] 00151


                 strlcat

[function] [call site] 00152


                   strlen

[call site] 00153


               sshlog

[function] [call site] 00154


               strlen

[call site] 00155


               freezero

[function] [call site] 00156


               sshbuf_new

[function] [call site] 00157


                 calloc

[call site] 00158


                 calloc

[call site] 00159


               ssh_digest_bytes

[function] [call site] 00160


               sshbuf_put

[function] [call site] 00161


                 sshbuf_reserve

[function] [call site] 00162


                   sshbuf_allocate

[function] [call site] 00163


                     sshbuf_check_reserve

[function] [call site] 00164


                       sshbuf_check_sanity

[function] [call site] 00165


                     sshbuf_maybe_pack

[function] [call site] 00166


                     recallocarray

[function] [call site] 00167


                       calloc

[call site] 00168


                       __errno_location

[call site] 00169


                       __errno_location

[call site] 00170


                       getpagesize

[call site] 00171


                       memset

[call site] 00172


                       memset

[call site] 00173


                       explicit_bzero

[call site] 00174


                     sshbuf_check_reserve

[function] [call site] 00175


               ssh_err

[function] [call site] 00176


               sshlog

[function] [call site] 00177


               sshbuf_free

[function] [call site] 00178


               explicit_bzero

[call site] 00179


             ssh_err

[function] [call site] 00180


             sshlog

[function] [call site] 00181


             sshsig_wrap_verify

[function] [call site] 00182


               sshbuf_len

[function] [call site] 00183


               sshlog

[function] [call site] 00184


               sshbuf_new

[function] [call site] 00185


               sshlog

[function] [call site] 00186


               sshbuf_put

[function] [call site] 00187


               sshbuf_put_cstring

[function] [call site] 00188


                 strlen

[call site] 00189


                 sshbuf_put_string

[function] [call site] 00190


                   sshbuf_reserve

[function] [call site] 00191


               sshbuf_put_string

[function] [call site] 00192


               sshbuf_put_cstring

[function] [call site] 00193


               sshbuf_put_stringb

[function] [call site] 00194


                 sshbuf_put_string

[function] [call site] 00195


                 sshbuf_ptr

[function] [call site] 00196


                 sshbuf_len

[function] [call site] 00197


                 sshbuf_put_string

[function] [call site] 00198


               ssh_err

[function] [call site] 00199


               sshlog

[function] [call site] 00200


               sshsig_parse_preamble

[function] [call site] 00201


               sshkey_froms

[function] [call site] 00202


                 sshbuf_froms

[function] [call site] 00203


                   sshbuf_peek_string_direct

[function] [call site] 00204


                   sshbuf_from

[function] [call site] 00205


                   sshbuf_consume

[function] [call site] 00206


                   sshbuf_set_parent

[function] [call site] 00207


                   sshbuf_free

[function] [call site] 00208


                 sshkey_from_blob_internal

[function] [call site] 00209


                   sshbuf_fromb

[function] [call site] 00210


                   sshbuf_get_cstring

[function] [call site] 00211


                   sshkey_type_from_name

[function] [call site] 00212


                     type_from_name

[function] [call site] 00213


                       strcmp

[call site] 00214


                       strcasecmp

[call site] 00215


                   sshkey_type_is_cert

[function] [call site] 00216


                     sshkey_impl_from_type

[function] [call site] 00217


                   sshkey_match_keyname_to_sigalgs

[function] [call site] 00218


                     sshkey_type_from_name

[function] [call site] 00219


                     match_pattern_list

[function] [call site] 00220


                     match_pattern_list

[function] [call site] 00221


                     match_pattern_list

[function] [call site] 00222


                     match_pattern_list

[function] [call site] 00223


                     match_pattern_list

[function] [call site] 00224


                     match_pattern_list

[function] [call site] 00225


                     match_pattern_list

[function] [call site] 00226


                     match_pattern_list

[function] [call site] 00227


                     match_pattern_list

[function] [call site] 00228


                     match_pattern_list

[function] [call site] 00229


                     match_pattern_list

[function] [call site] 00230


                   sshkey_impl_from_type

[function] [call site] 00231


                   sshkey_new

[function] [call site] 00232


                     sshkey_impl_from_type

[function] [call site] 00233


                     calloc

[call site] 00234


                     sshkey_is_cert

[function] [call site] 00235


                       sshkey_type_is_cert

[function] [call site] 00236


                     cert_new

[function] [call site] 00237


                       calloc

[call site] 00238


                       sshbuf_new

[function] [call site] 00239


                       sshbuf_new

[function] [call site] 00240


                       sshbuf_new

[function] [call site] 00241


                       cert_free

[function] [call site] 00242


                         sshbuf_free

[function] [call site] 00243


                         sshbuf_free

[function] [call site] 00244


                         sshbuf_free

[function] [call site] 00245


                         sshkey_free

[function] [call site] 00246


                           sshkey_free_contents

[function] [call site] 00247


                             pkcs11_key_free

[function] [call site] 00248


                               sshkey_type

[function] [call site] 00249


                                 sshkey_impl_from_key

[function] [call site] 00250


                                   sshkey_impl_from_type_nid

[function] [call site] 00251


                               sshlog

[function] [call site] 00252


                               helper_by_key

[function] [call site] 00253


                                 sshbuf_new

[function] [call site] 00254


                                 sshfatal

[function] [call site] 00255


                                 sshkey_putb

[function] [call site] 00256


                                   to_blob_buf

[function] [call site] 00257


                                     sshkey_type_plain

[function] [call site] 00258


                                     sshkey_type_is_cert

[function] [call site] 00259


                                     sshbuf_len

[function] [call site] 00260


                                     sshbuf_putb

[function] [call site] 00261


                                       sshbuf_ptr

[function] [call site] 00262


                                       sshbuf_len

[function] [call site] 00263


                                       sshbuf_put

[function] [call site] 00264


                                     sshkey_impl_from_type

[function] [call site] 00265


                                     sshkey_ssh_name_from_type_nid

[function] [call site] 00266


                                       sshkey_impl_from_type_nid

[function] [call site] 00267


                                     sshbuf_put_cstring

[function] [call site] 00268


                                 ssh_err

[function] [call site] 00269


                                 sshfatal

[function] [call site] 00270


                                 sshbuf_equals

[function] [call site] 00271


                                   sshbuf_ptr

[function] [call site] 00272


                                   sshbuf_len

[function] [call site] 00273


                                   sshbuf_len

[function] [call site] 00274


                                   sshbuf_ptr

[function] [call site] 00275


                                   sshbuf_len

[function] [call site] 00276


                                   memcmp

[call site] 00277


                                 sshbuf_free

[function] [call site] 00278


                                 sshbuf_free

[function] [call site] 00279


                               sshkey_type

[function] [call site] 00280


                               sshfatal

[function] [call site] 00281


                               sshbuf_new

[function] [call site] 00282


                               sshfatal

[function] [call site] 00283


                               sshkey_putb

[function] [call site] 00284


                               ssh_err

[function] [call site] 00285


                               sshfatal

[function] [call site] 00286


                               sshbuf_equals

[function] [call site] 00287


                               sshfatal

[function] [call site] 00288


                               xrecallocarray

[function] [call site] 00289


                                 recallocarray

[function] [call site] 00290


                                 sshfatal

[function] [call site] 00291


                               helper_terminate

[function] [call site] 00292


                                 sshfatal

[function] [call site] 00293


                                 sshlog

[function] [call site] 00294


                                 close

[call site] 00295


                                 sshfatal

[function] [call site] 00296


                                 xrecallocarray

[function] [call site] 00297


                                 sshbuf_free

[function] [call site] 00298


                             sshkey_impl_from_type

[function] [call site] 00299


                             sshkey_is_cert

[function] [call site] 00300


                             cert_free

[function] [call site] 00301


                               freezero

[function] [call site] 00302


                             freezero

[function] [call site] 00303


                             sshkey_prekey_free

[function] [call site] 00304


                               munmap

[call site] 00305


                           freezero

[function] [call site] 00306


                     sshkey_free

[function] [call site] 00307


                   sshkey_type_is_cert

[function] [call site] 00308


                   sshbuf_get_string_direct

[function] [call site] 00309


                   sshkey_is_cert

[function] [call site] 00310


                   cert_parse

[function] [call site] 00311


                     sshbuf_putb

[function] [call site] 00312


                     sshbuf_get_u64

[function] [call site] 00313


                       sshbuf_ptr

[function] [call site] 00314


                       sshbuf_consume

[function] [call site] 00315


                     sshbuf_get_u32

[function] [call site] 00316


                     sshbuf_get_cstring

[function] [call site] 00317


                     sshbuf_froms

[function] [call site] 00318


                     sshbuf_get_u64

[function] [call site] 00319


                     sshbuf_get_u64

[function] [call site] 00320


                     sshbuf_froms

[function] [call site] 00321


                     sshbuf_froms

[function] [call site] 00322


                     sshbuf_get_string_direct

[function] [call site] 00323


                     sshbuf_froms

[function] [call site] 00324


                     sshbuf_len

[function] [call site] 00325


                     sshbuf_get_string

[function] [call site] 00326


                     sshkey_get_sigtype

[function] [call site] 00327


                       sshbuf_from

[function] [call site] 00328


                       sshbuf_get_cstring

[function] [call site] 00329


                       sshbuf_free

[function] [call site] 00330


                     match_pattern_list

[function] [call site] 00331


                     sshkey_from_blob_internal

[function] [call site] 00332


                       sshbuf_len

[function] [call site] 00333


                       sshbuf_free

[function] [call site] 00334


                       sshkey_free

[function] [call site] 00335


                     sshkey_type_is_valid_ca

[function] [call site] 00336


                       sshkey_impl_from_type

[function] [call site] 00337


                     sshbuf_len

[function] [call site] 00338


                     sshbuf_get_cstring

[function] [call site] 00339


                     recallocarray

[function] [call site] 00340


                     sshbuf_putb

[function] [call site] 00341


                     sshbuf_putb

[function] [call site] 00342


                     sshbuf_len

[function] [call site] 00343


                     sshbuf_get_string_direct

[function] [call site] 00344


                     sshbuf_get_string_direct

[function] [call site] 00345


                     sshbuf_reset

[function] [call site] 00346


                       sshbuf_check_sanity

[function] [call site] 00347


                       recallocarray

[function] [call site] 00348


                       explicit_bzero

[call site] 00349


                     sshbuf_len

[function] [call site] 00350


                     sshbuf_get_string_direct

[function] [call site] 00351


                     sshbuf_get_string_direct

[function] [call site] 00352


                     sshbuf_reset

[function] [call site] 00353


                     sshbuf_ptr

[function] [call site] 00354


                     sshkey_verify

[function] [call site] 00355


                       sshkey_impl_from_key

[function] [call site] 00356


                     sshbuf_free

[function] [call site] 00357


                     sshbuf_free

[function] [call site] 00358


                     sshbuf_free

[function] [call site] 00359


                     sshbuf_free

[function] [call site] 00360


                 sshbuf_free

[function] [call site] 00361


               sshbuf_get_cstring

[function] [call site] 00362


               sshbuf_get_string

[function] [call site] 00363


               sshbuf_get_cstring

[function] [call site] 00364


               sshbuf_get_string_direct

[function] [call site] 00365


               ssh_err

[function] [call site] 00366


               sshlog

[function] [call site] 00367


               sshbuf_len

[function] [call site] 00368


               sshlog

[function] [call site] 00369


               strcmp

[call site] 00370


               sshlog

[function] [call site] 00371


               sshlog

[function] [call site] 00372


               strcmp

[call site] 00373


               sshlog

[function] [call site] 00374


               sshlog

[function] [call site] 00375


               sshkey_type_plain

[function] [call site] 00376


               sshkey_get_sigtype

[function] [call site] 00377


               ssh_err

[function] [call site] 00378


               sshlog

[function] [call site] 00379


               match_pattern_list

[function] [call site] 00380


               sshlog

[function] [call site] 00381


               sshbuf_ptr

[function] [call site] 00382


               sshbuf_len

[function] [call site] 00383


               sshkey_verify

[function] [call site] 00384


               ssh_err

[function] [call site] 00385


               sshlog

[function] [call site] 00386


               sshbuf_free

[function] [call site] 00387


               sshbuf_free

[function] [call site] 00388


               sshkey_free

[function] [call site] 00389


             sshbuf_free

[function] [call site] 00390


           sshkey_sig_details_free

[function] [call site] 00391


             freezero

[function] [call site] 00392


           sshkey_free

[function] [call site] 00393


           sshbuf_free

[function] [call site] 00394


           sshbuf_free

[function] [call site] 00395