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authorMiss Islington (bot) <31488909+miss-islington@users.noreply.github.com>2024-06-25 17:40:05 (GMT)
committerGitHub <noreply@github.com>2024-06-25 17:40:05 (GMT)
commit571cefd8c7933f4917739dde43171558f109d63c (patch)
treea3208bf782aceca98c8b60198cf781a0481f4729
parentf4f8a714b5fe0e83d63c54cdf39e8d8920047e6c (diff)
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[3.13] gh-120155: Fix Coverity issue in parse_string() (GH-120997) (#121005)
gh-120155: Fix Coverity issue in parse_string() (GH-120997) (cherry picked from commit 769aea332940f03c3e5b1ad9badd6635c1ac992a) Co-authored-by: Victor Stinner <vstinner@python.org>
-rw-r--r--Parser/string_parser.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/Parser/string_parser.c b/Parser/string_parser.c
index bacfd81..93ad92b 100644
--- a/Parser/string_parser.c
+++ b/Parser/string_parser.c
@@ -229,9 +229,14 @@ _PyPegen_parse_string(Parser *p, Token *t)
PyErr_BadInternalCall();
return NULL;
}
+
/* Skip the leading quote char. */
s++;
len = strlen(s);
+ // gh-120155: 's' contains at least the trailing quote,
+ // so the code '--len' below is safe.
+ assert(len >= 1);
+
if (len > INT_MAX) {
PyErr_SetString(PyExc_OverflowError, "string to parse is too long");
return NULL;