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Prevent memory leak in fuzzer

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This commit is contained in:
Tatsuya Kinoshita
2021-03-25 18:55:49 +09:00
parent 16d0f20fc0
commit 5a1059b6f3
1 changed files with 11 additions and 9 deletions
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20
fuzz/fuzz-conv.c
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@@ -9,7 +9,7 @@
char *get_null_terminated(const uint8_t *data, size_t size) { char *get_null_terminated(const uint8_t *data, size_t size) {
char *new_str = (char *)malloc(size+1); char *new_str = (char *)malloc(size+1);
if (new_str == NULL){ if (new_str == NULL){
return NULL; exit(1);
} }
memcpy(new_str, data, size); memcpy(new_str, data, size);
new_str[size] = '\0'; new_str[size] = '\0';
@@ -57,17 +57,19 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size){
sprintf(filename, "/tmp/libfuzzer.%d", getpid()); sprintf(filename, "/tmp/libfuzzer.%d", getpid());
FILE *fp = fopen(filename, "wb"); FILE *fp = fopen(filename, "wb");
if (!fp) { if (fp) {
return 0; fwrite(data, size, 1, fp);
fclose(fp);
} }
fwrite(data, size, 1, fp);
fclose(fp);
FILE *f = fopen(filename, "r"); FILE *f = fopen(filename, "r");
Str s = Strfgetall(f); if (f) {
wc_Str_conv_with_detect(s, &from, from, to); Str s = Strfgetall(f);
if (s != NULL) { wc_Str_conv_with_detect(s, &from, from, to);
Strfree(s); if (s != NULL) {
Strfree(s);
}
fclose(f);
} }
unlink(filename); unlink(filename);