Fuzz blockers

The followings are the branches where fuzzer fails to bypass.

Unique non-covered Complexity	Unique Reachable Complexities	Unique Reachable Functions	All non-covered Complexity	All Reachable Complexity	Function Name	Function Callsite	Blocked Branch
16	16	5 : View List ['free', 'libcerror_error_resize', 'libcerror_error_initialize', 'strlen', 'realloc']	16	16	libcerror_error_set	call site: 00002	/src/libcaes/libcerror/libcerror_error.c:328
0	32	2 : View List ['free', 'libcerror_error_set']	0	32	libfcrypto_serpent_context_initialize	call site: 00011	/src/libfcrypto/libfcrypto/libfcrypto_serpent_context.c:609
0	32	1 : View List ['libcerror_error_set']	0	32	libfcrypto_serpent_context_free	call site: 00042	/src/libfcrypto/libfcrypto/libfcrypto_serpent_context.c:663
0	32	1 : View List ['libcerror_error_set']	0	32	libfcrypto_serpent_context_set_key	call site: 00018	/src/libfcrypto/libfcrypto/libfcrypto_serpent_context.c:775
0	32	1 : View List ['libcerror_error_set']	0	32	libfcrypto_internal_serpent_context_encrypt_block	call site: 00031	/src/libfcrypto/libfcrypto/libfcrypto_serpent_context.c:1541
0	0	None	41	146	libfcrypto_serpent_crypt_ecb	call site: 00026	/src/libfcrypto/libfcrypto/libfcrypto_serpent_context.c:2684
0	0	None	0	32	libfcrypto_serpent_context_initialize	call site: 00001	/src/libfcrypto/libfcrypto/libfcrypto_serpent_context.c:573
0	0	None	0	32	libfcrypto_serpent_context_initialize	call site: 00002	/src/libfcrypto/libfcrypto/libfcrypto_serpent_context.c:584
0	0	None	0	32	libfcrypto_serpent_context_initialize	call site: 00010	/src/libfcrypto/libfcrypto/libfcrypto_serpent_context.c:598
0	0	None	0	32	libfcrypto_serpent_context_free	call site: 00041	/src/libfcrypto/libfcrypto/libfcrypto_serpent_context.c:647
0	0	None	0	32	libfcrypto_serpent_context_set_key	call site: 00013	/src/libfcrypto/libfcrypto/libfcrypto_serpent_context.c:706
0	0	None	0	32	libfcrypto_serpent_context_set_key	call site: 00014	/src/libfcrypto/libfcrypto/libfcrypto_serpent_context.c:719

Fuzzer calltree


         LLVMFuzzerTestOneInput

[function] [call site] 00000


           libfcrypto_serpent_context_initialize

[function] [call site] 00001


             libcerror_error_set

[function] [call site] 00002


               strlen

[call site] 00003


               libcerror_error_initialize

[function] [call site] 00004


               libcerror_error_resize

[function] [call site] 00005


                 realloc

[call site] 00006


                 realloc

[call site] 00007


               realloc

[call site] 00008


               vsnprintf

[call site] 00009


             libcerror_error_set

[function] [call site] 00010


             libcerror_error_set

[function] [call site] 00011


             libcerror_error_set

[function] [call site] 00012


           libfcrypto_serpent_context_set_key

[function] [call site] 00013


             libcerror_error_set

[function] [call site] 00014


             libcerror_error_set

[function] [call site] 00015


             libcerror_error_set

[function] [call site] 00016


             libcerror_error_set

[function] [call site] 00017


             libcerror_error_set

[function] [call site] 00018


             libcerror_error_set

[function] [call site] 00019


           libfcrypto_serpent_crypt_ecb

[function] [call site] 00020


             libcerror_error_set

[function] [call site] 00021


             libcerror_error_set

[function] [call site] 00022


             libcerror_error_set

[function] [call site] 00023


             libcerror_error_set

[function] [call site] 00024


             libcerror_error_set

[function] [call site] 00025


             libcerror_error_set

[function] [call site] 00026


             libfcrypto_internal_serpent_context_encrypt_block

[function] [call site] 00027


               libcerror_error_set

[function] [call site] 00028


               libcerror_error_set

[function] [call site] 00029


               libcerror_error_set

[function] [call site] 00030


               libcerror_error_set

[function] [call site] 00031


               libcerror_error_set

[function] [call site] 00032


             libcerror_error_set

[function] [call site] 00033


             libfcrypto_internal_serpent_context_decrypt_block

[function] [call site] 00034


               libcerror_error_set

[function] [call site] 00035


               libcerror_error_set

[function] [call site] 00036


               libcerror_error_set

[function] [call site] 00037


               libcerror_error_set

[function] [call site] 00038


               libcerror_error_set

[function] [call site] 00039


             libcerror_error_set

[function] [call site] 00040


           libfcrypto_serpent_context_free

[function] [call site] 00041


             libcerror_error_set

[function] [call site] 00042


             libcerror_error_set

[function] [call site] 00043