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Fix #2566 - Avoid negative realloc in microsoft demangler

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This commit is contained in:
pancake 2017-08-25 19:14:45 +02:00
parent 48869fc5c7
commit 8b15b1ddee
1 changed files with 7 additions and 4 deletions
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11
libr/bin/mangling/microsoft_demangle.c
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@ -123,10 +123,13 @@ int copy_string(STypeCodeStr *type_code_str, char *str_for_copy, unsigned int co
return 0;
}
if (free_space > str_for_copy_len) {
type_code_str->type_str_len =
((type_code_str->type_str_len + str_for_copy_len) << 1) + 1;
char *type_str = (char *) realloc (
type_code_str->type_str, type_code_str->type_str_len);
int newlen = ((type_code_str->type_str_len + str_for_copy_len) << 1) + 1;
if (newlen < 1) {
R_FREE (type_code_str->type_str);
goto copy_string_err;
}
type_code_str->type_str_len = newlen;
char *type_str = (char *) realloc (type_code_str->type_str, newlen);
if (!type_str) {
R_FREE (type_code_str->type_str);
goto copy_string_err;