traverseda
/
cpython
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

bpo-36367: Free buffer if realloc fails in tokenize.c (GH-12442)

This commit is contained in:
Pablo Galindo 2019-03-19 17:17:58 +00:00 committed by GitHub
parent dcf617152e
commit cb90c89de1
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 8 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
Parser/tokenizer.c
View File

@ -649,9 +649,14 @@ translate_newlines(const char *s, int exec_input, struct tok_state *tok) {
}
*current = '\0';
final_length = current - buf + 1;
if (final_length < needed_length && final_length)
if (final_length < needed_length && final_length) {
/* should never fail */
buf = PyMem_REALLOC(buf, final_length);
char* result = PyMem_REALLOC(buf, final_length);
if (result == NULL) {
PyMem_FREE(buf);
}
buf = result;
}
return buf;
}
@ -958,6 +963,7 @@ tok_nextc(struct tok_state *tok)
newbuf = (char *)PyMem_REALLOC(newbuf,
newsize);
if (newbuf == NULL) {
PyMem_FREE(tok->buf);
tok->done = E_NOMEM;
tok->cur = tok->inp;
return EOF;