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| author | chgnrdv <52372310+chgnrdv@users.noreply.github.com> | 2023-05-01 15:26:43 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2023-05-01 15:26:43 (GMT) |
| commit | d5a97074d24cd14cb2a35a2b1ad3074863cde264 (patch) | |
| tree | 799f6261799a4b4dd4c70e591c60801f6edf3023 /Parser | |
| parent | 99aab610622fc4b4c4fe56b77c0760cf77066a53 (diff) | |
| download | cpython-d5a97074d24cd14cb2a35a2b1ad3074863cde264.zip cpython-d5a97074d24cd14cb2a35a2b1ad3074863cde264.tar.gz cpython-d5a97074d24cd14cb2a35a2b1ad3074863cde264.tar.bz2 | |
gh-103824: fix use-after-free error in Parser/tokenizer.c (#103993)
Diffstat (limited to 'Parser')
| -rw-r--r-- | Parser/tokenizer.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Parser/tokenizer.c b/Parser/tokenizer.c index 8de0572..8fb9be7 100644 --- a/Parser/tokenizer.c +++ b/Parser/tokenizer.c @@ -2552,6 +2552,10 @@ f_string_middle: while (end_quote_size != current_tok->f_string_quote_size) { int c = tok_nextc(tok); if (c == EOF || (current_tok->f_string_quote_size == 1 && c == '\n')) { + if (tok->decoding_erred) { + return MAKE_TOKEN(ERRORTOKEN); + } + assert(tok->multi_line_start != NULL); // shift the tok_state's location into // the start of string, and report the error |