Fuzz blockers

The following nodes represent call sites where fuzz blockers occur.

Amount of callsites blocked	Calltree index	Parent function	Callsite	Largest blocked function
26	33	match_pattern_list	call site: 00033	do_log
8	16	sshbuf_fromb	call site: 00016	ssh_signal
8	125	hash_buffer	call site: 00125	xstrdup
6	6	log_init	call site: 00006	fprintf
4	25	sshlog	call site: 00025	match_pattern_list
2	101	sshsig_peek_hashalg	call site: 00101	__errno_location
2	120	ssh_digest_memory	call site: 00120	sshlog
2	134	tohex	call site: 00134	sshfatal
2	157	recallocarray	call site: 00157	__errno_location
2	164	sshbuf_allocate	call site: 00164	sshlog
2	187	sshbuf_put_stringb	call site: 00187	sshlog
2	301	sshsig_wrap_verify	call site: 00301	sshlog

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


                             match_pattern

[function] [call site] 00034


                               match_pattern

[function] [call site] 00035


                         snprintf

[call site] 00036


                         snprintf

[call site] 00037


                         strlcpy

[function] [call site] 00038


                         do_log

[function] [call site] 00039


                           __errno_location

[call site] 00040


                           snprintf

[call site] 00041


                           vsnprintf

[call site] 00042


                           vsnprintf

[call site] 00043


                           snprintf

[call site] 00044


                           strlcpy

[function] [call site] 00045


                           strnvis

[function] [call site] 00046


                             __ctype_b_loc

[call site] 00047

vis

[function] [call site] 00048


                               __ctype_b_loc

[call site] 00049


                               __ctype_b_loc

[call site] 00050

vis

[function] [call site] 00051


                           snprintf

[call site] 00052


                           strlen

[call site] 00053


                           write

[call site] 00054


                           openlog

[call site] 00055


                           syslog

[call site] 00056


                           closelog

[call site] 00057


                           __errno_location

[call site] 00058


                   raise

[call site] 00059


                 sshbuf_ptr

[function] [call site] 00060


                   sshbuf_check_sanity

[function] [call site] 00061


                 sshbuf_len

[function] [call site] 00062


                   sshbuf_check_sanity

[function] [call site] 00063


                 sshbuf_from

[function] [call site] 00064


                 sshbuf_set_parent

[function] [call site] 00065


                   sshbuf_check_sanity

[function] [call site] 00066


                   sshbuf_check_sanity

[function] [call site] 00067


                 sshbuf_free

[function] [call site] 00068


                   sshbuf_check_sanity

[function] [call site] 00069


                   sshbuf_free

[function] [call site] 00070


                     freezero

[function] [call site] 00071


                       explicit_bzero

[call site] 00072


                     freezero

[function] [call site] 00073


               sshsig_parse_preamble

[function] [call site] 00074


                 sshbuf_cmp

[function] [call site] 00075


                   sshbuf_ptr

[function] [call site] 00076


                   sshbuf_len

[function] [call site] 00077


                   sshbuf_ptr

[function] [call site] 00078


                   timingsafe_bcmp

[function] [call site] 00079


                 sshbuf_consume

[function] [call site] 00080


                   sshbuf_check_sanity

[function] [call site] 00081


                   sshbuf_len

[function] [call site] 00082


                 sshbuf_get_u32

[function] [call site] 00083


                   sshbuf_ptr

[function] [call site] 00084


                   sshbuf_consume

[function] [call site] 00085


                 sshlog

[function] [call site] 00086


                 sshlog

[function] [call site] 00087


               sshbuf_get_string_direct

[function] [call site] 00088


                 sshbuf_peek_string_direct

[function] [call site] 00089


                   sshbuf_ptr

[function] [call site] 00090


                   sshbuf_len

[function] [call site] 00091


                   sshbuf_len

[function] [call site] 00092


                 sshbuf_consume

[function] [call site] 00093


               sshbuf_get_string_direct

[function] [call site] 00094


               sshbuf_get_string

[function] [call site] 00095


                 sshbuf_get_string_direct

[function] [call site] 00096


               sshbuf_get_cstring

[function] [call site] 00097


                 sshbuf_peek_string_direct

[function] [call site] 00098


                 memchr

[call site] 00099


                 sshbuf_get_string_direct

[function] [call site] 00100


               ssh_err

[function] [call site] 00101


                 __errno_location

[call site] 00102


                 strerror

[call site] 00103


               sshlog

[function] [call site] 00104


               sshbuf_free

[function] [call site] 00105


             sshlog

[function] [call site] 00106


             hash_buffer

[function] [call site] 00107


               memset

[call site] 00108


               sshsig_check_hashalg

[function] [call site] 00109


                 match_pattern_list

[function] [call site] 00110


                 sshlog

[function] [call site] 00111


               ssh_digest_alg_by_name

[function] [call site] 00112


                 strcasecmp

[call site] 00113


               sshlog

[function] [call site] 00114


               ssh_digest_buffer

[function] [call site] 00115


                 sshbuf_ptr

[function] [call site] 00116


                 sshbuf_len

[function] [call site] 00117


                 ssh_digest_memory

[function] [call site] 00118


                   ssh_digest_by_alg

[function] [call site] 00119


                   EVP_Digest

[call site] 00120


               ssh_err

[function] [call site] 00121


               sshlog

[function] [call site] 00122


               ssh_digest_bytes

[function] [call site] 00123


                 ssh_digest_by_alg

[function] [call site] 00124


               tohex

[function] [call site] 00125


                 xstrdup

[function] [call site] 00126


                   strlen

[call site] 00127


                   xmalloc

[function] [call site] 00128


                     sshfatal

[function] [call site] 00129


                       sshlogv

[function] [call site] 00130


                       cleanup_exit

[function] [call site] 00131


                         _exit

[call site] 00132


                     sshfatal

[function] [call site] 00133


                 xcalloc

[function] [call site] 00134


                   sshfatal

[function] [call site] 00135


                   sshfatal

[function] [call site] 00136


                   calloc

[call site] 00137


                   sshfatal

[function] [call site] 00138


                 snprintf

[call site] 00139


                 strlcat

[function] [call site] 00140


                   strlen

[call site] 00141


               sshlog

[function] [call site] 00142


               strlen

[call site] 00143


               freezero

[function] [call site] 00144


               sshbuf_new_label

[function] [call site] 00145


                 calloc

[call site] 00146


                 strncpy

[call site] 00147


                 calloc

[call site] 00148


               ssh_digest_bytes

[function] [call site] 00149


               sshbuf_put

[function] [call site] 00150


                 sshbuf_reserve

[function] [call site] 00151


                   sshbuf_allocate

[function] [call site] 00152


                     sshbuf_check_reserve

[function] [call site] 00153


                       sshbuf_check_sanity

[function] [call site] 00154


                     sshbuf_maybe_pack

[function] [call site] 00155


                     recallocarray

[function] [call site] 00156


                       calloc

[call site] 00157


                       __errno_location

[call site] 00158


                       __errno_location

[call site] 00159


                       getpagesize

[call site] 00160


                       memset

[call site] 00161


                       memset

[call site] 00162


                       explicit_bzero

[call site] 00163


                     sshbuf_check_reserve

[function] [call site] 00164


               ssh_err

[function] [call site] 00165


               sshlog

[function] [call site] 00166


               sshbuf_free

[function] [call site] 00167


               explicit_bzero

[call site] 00168


             ssh_err

[function] [call site] 00169


             sshlog

[function] [call site] 00170


             sshsig_wrap_verify

[function] [call site] 00171


               sshbuf_len

[function] [call site] 00172


               sshlog

[function] [call site] 00173


               sshbuf_new_label

[function] [call site] 00174


               sshlog

[function] [call site] 00175


               sshbuf_put

[function] [call site] 00176


               sshbuf_put_cstring

[function] [call site] 00177


                 strlen

[call site] 00178


                 sshbuf_put_string

[function] [call site] 00179


                   sshbuf_reserve

[function] [call site] 00180


               sshbuf_put_string

[function] [call site] 00181


               sshbuf_put_cstring

[function] [call site] 00182


               sshbuf_put_stringb

[function] [call site] 00183


                 sshbuf_put_string

[function] [call site] 00184


                 sshbuf_ptr

[function] [call site] 00185


                 sshbuf_len

[function] [call site] 00186


                 sshbuf_put_string

[function] [call site] 00187


               ssh_err

[function] [call site] 00188


               sshlog

[function] [call site] 00189


               sshsig_parse_preamble

[function] [call site] 00190


               sshkey_froms

[function] [call site] 00191


                 sshbuf_froms

[function] [call site] 00192


                   sshbuf_peek_string_direct

[function] [call site] 00193


                   sshbuf_from

[function] [call site] 00194


                   sshbuf_consume

[function] [call site] 00195


                   sshbuf_set_parent

[function] [call site] 00196


                   sshbuf_free

[function] [call site] 00197


                 sshkey_from_blob_internal

[function] [call site] 00198


                   sshbuf_fromb

[function] [call site] 00199


                   sshbuf_get_cstring

[function] [call site] 00200


                   sshkey_type_from_name

[function] [call site] 00201


                     type_from_name

[function] [call site] 00202


                       strcmp

[call site] 00203


                       strcasecmp

[call site] 00204


                   sshkey_type_is_cert

[function] [call site] 00205


                     sshkey_impl_from_type

[function] [call site] 00206


                   sshkey_impl_from_type

[function] [call site] 00207


                   sshkey_new

[function] [call site] 00208


                     sshkey_impl_from_type

[function] [call site] 00209


                     calloc

[call site] 00210


                     sshkey_is_cert

[function] [call site] 00211


                       sshkey_type_is_cert

[function] [call site] 00212


                     cert_new

[function] [call site] 00213


                       calloc

[call site] 00214


                       sshbuf_new_label

[function] [call site] 00215


                       sshbuf_new_label

[function] [call site] 00216


                       sshbuf_new_label

[function] [call site] 00217


                       cert_free

[function] [call site] 00218


                         sshbuf_free

[function] [call site] 00219


                         sshbuf_free

[function] [call site] 00220


                         sshbuf_free

[function] [call site] 00221


                         sshkey_free

[function] [call site] 00222


                           sshkey_free_contents

[function] [call site] 00223


                             sshkey_impl_from_type

[function] [call site] 00224


                             sshkey_is_cert

[function] [call site] 00225


                             cert_free

[function] [call site] 00226


                               freezero

[function] [call site] 00227


                             freezero

[function] [call site] 00228


                             sshkey_prekey_free

[function] [call site] 00229


                               munmap

[call site] 00230


                           freezero

[function] [call site] 00231


                     sshkey_free

[function] [call site] 00232


                   sshkey_type_is_cert

[function] [call site] 00233


                   sshbuf_get_string_direct

[function] [call site] 00234


                   sshkey_is_cert

[function] [call site] 00235


                   cert_parse

[function] [call site] 00236


                     sshbuf_putb

[function] [call site] 00237


                       sshbuf_ptr

[function] [call site] 00238


                       sshbuf_len

[function] [call site] 00239


                       sshbuf_put

[function] [call site] 00240


                     sshbuf_get_u64

[function] [call site] 00241


                       sshbuf_ptr

[function] [call site] 00242


                       sshbuf_consume

[function] [call site] 00243


                     sshbuf_get_u32

[function] [call site] 00244


                     sshbuf_get_cstring

[function] [call site] 00245


                     sshbuf_froms

[function] [call site] 00246


                     sshbuf_get_u64

[function] [call site] 00247


                     sshbuf_get_u64

[function] [call site] 00248


                     sshbuf_froms

[function] [call site] 00249


                     sshbuf_froms

[function] [call site] 00250


                     sshbuf_get_string_direct

[function] [call site] 00251


                     sshbuf_froms

[function] [call site] 00252


                     sshbuf_len

[function] [call site] 00253


                     sshbuf_get_string

[function] [call site] 00254


                     sshbuf_len

[function] [call site] 00255


                     sshbuf_get_cstring

[function] [call site] 00256


                     recallocarray

[function] [call site] 00257


                     sshbuf_putb

[function] [call site] 00258


                     sshbuf_putb

[function] [call site] 00259


                     sshbuf_len

[function] [call site] 00260


                     sshbuf_get_string_direct

[function] [call site] 00261


                     sshbuf_get_string_direct

[function] [call site] 00262


                     sshbuf_reset

[function] [call site] 00263


                       sshbuf_check_sanity

[function] [call site] 00264


                       recallocarray

[function] [call site] 00265


                       explicit_bzero

[call site] 00266


                     sshbuf_len

[function] [call site] 00267


                     sshbuf_get_string_direct

[function] [call site] 00268


                     sshbuf_get_string_direct

[function] [call site] 00269


                     sshbuf_reset

[function] [call site] 00270


                     sshkey_from_blob_internal

[function] [call site] 00271


                       sshbuf_len

[function] [call site] 00272


                       sshbuf_free

[function] [call site] 00273


                       sshkey_free

[function] [call site] 00274


                     sshkey_type_is_valid_ca

[function] [call site] 00275


                       sshkey_impl_from_type

[function] [call site] 00276


                     sshbuf_ptr

[function] [call site] 00277


                     sshkey_verify

[function] [call site] 00278


                       sshkey_impl_from_key

[function] [call site] 00279


                         sshkey_impl_from_type_nid

[function] [call site] 00280


                     sshkey_get_sigtype

[function] [call site] 00281


                       sshbuf_from

[function] [call site] 00282


                       sshbuf_get_cstring

[function] [call site] 00283


                       sshbuf_free

[function] [call site] 00284


                     sshbuf_free

[function] [call site] 00285


                     sshbuf_free

[function] [call site] 00286


                     sshbuf_free

[function] [call site] 00287


                     sshbuf_free

[function] [call site] 00288


                 sshbuf_free

[function] [call site] 00289


               sshbuf_get_cstring

[function] [call site] 00290


               sshbuf_get_string

[function] [call site] 00291


               sshbuf_get_cstring

[function] [call site] 00292


               sshbuf_get_string_direct

[function] [call site] 00293


               ssh_err

[function] [call site] 00294


               sshlog

[function] [call site] 00295


               sshbuf_len

[function] [call site] 00296


               sshlog

[function] [call site] 00297


               strcmp

[call site] 00298


               sshlog

[function] [call site] 00299


               sshlog

[function] [call site] 00300


               strcmp

[call site] 00301


               sshlog

[function] [call site] 00302


               sshlog

[function] [call site] 00303


               sshkey_type_plain

[function] [call site] 00304


               sshkey_get_sigtype

[function] [call site] 00305


               ssh_err

[function] [call site] 00306


               sshlog

[function] [call site] 00307


               match_pattern_list

[function] [call site] 00308


               sshlog

[function] [call site] 00309


               sshbuf_ptr

[function] [call site] 00310


               sshbuf_len

[function] [call site] 00311


               sshkey_verify

[function] [call site] 00312


               ssh_err

[function] [call site] 00313


               sshlog

[function] [call site] 00314


               sshbuf_free

[function] [call site] 00315


               sshbuf_free

[function] [call site] 00316


               sshkey_free

[function] [call site] 00317


             sshbuf_free

[function] [call site] 00318


           sshkey_sig_details_free

[function] [call site] 00319


             freezero

[function] [call site] 00320


           sshkey_free

[function] [call site] 00321


           sshbuf_free

[function] [call site] 00322


           sshbuf_free

[function] [call site] 00323