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| author | Andrew M. Kuchling <amk@amk.ca> | 2008-08-05 01:38:08 +0000 |
|---|---|---|
| committer | Andrew M. Kuchling <amk@amk.ca> | 2008-08-05 01:38:08 +0000 |
| commit | efa61bc15f325bb94d147b8641031d1774fb7a5c (patch) | |
| tree | 421fbc846042116d4fceff54233c8d45a01cf58a /Parser/tokenizer.c | |
| parent | 10288e19bf09ae79923794ed50da60af7eb5e3a1 (diff) | |
| download | cpython-git-efa61bc15f325bb94d147b8641031d1774fb7a5c.tar.gz | |
#3367 from Kristjan Valur Jonsson:
If a PyTokenizer_FromString() is called with an empty string, the
tokenizer's line_start member never gets initialized. Later, it is
compared with the token pointer 'a' in parsetok.c:193 and that behavior
can result in undefined behavior.
Diffstat (limited to 'Parser/tokenizer.c')
| -rw-r--r-- | Parser/tokenizer.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/Parser/tokenizer.c b/Parser/tokenizer.c index 1d0a4aa3f2..73ff92a199 100644 --- a/Parser/tokenizer.c +++ b/Parser/tokenizer.c @@ -1117,7 +1117,7 @@ tok_get(register struct tok_state *tok, char **p_start, char **p_end) register int c; int blankline; - *p_start = *p_end = NULL; + tok->line_start = *p_start = *p_end = NULL; nextline: tok->start = NULL; blankline = 0; |