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| author | Paul Eggert <eggert@cs.ucla.edu> | 2018-12-31 23:07:33 -0800 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2018-12-31 23:35:55 -0800 |
| commit | 8e25ffeec6345249f2a5d221fcb0622d1deaee27 (patch) | |
| tree | d9577f07bd5152b4aeb9f390adc00d1b86bc17a7 /src/json.c | |
| parent | a04bf15130f5d4e1bc79e1709461fe95345bdb2a (diff) | |
| download | emacs-8e25ffeec6345249f2a5d221fcb0622d1deaee27.tar.gz | |
Fix integer overflow check in json code
* src/json.c (json_to_lisp): Check for ptrdiff_t overflow,
not fixnum overflow.
Diffstat (limited to 'src/json.c')
| -rw-r--r-- | src/json.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/json.c b/src/json.c index 46fb97a99e8..b5fb3fee059 100644 --- a/src/json.c +++ b/src/json.c @@ -815,7 +815,7 @@ json_to_lisp (json_t *json, struct json_configuration *conf) if (++lisp_eval_depth > max_lisp_eval_depth) xsignal0 (Qjson_object_too_deep); size_t size = json_array_size (json); - if (FIXNUM_OVERFLOW_P (size)) + if (PTRDIFF_MAX < size) overflow_error (); Lisp_Object result = make_vector (size, Qunbound); for (ptrdiff_t i = 0; i < size; ++i) |