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-rw-r--r--ext/standard/var_unserializer.re2
1 files changed, 1 insertions, 1 deletions
diff --git a/ext/standard/var_unserializer.re b/ext/standard/var_unserializer.re
index 130750805f..6de158392e 100644
--- a/ext/standard/var_unserializer.re
+++ b/ext/standard/var_unserializer.re
@@ -376,7 +376,7 @@ static inline int object_custom(UNSERIALIZE_PARAMETER, zend_class_entry *ce)
(*p) += 2;
- if (datalen < 0 || (*p) + datalen >= max) {
+ if (datalen < 0 || (max - (*p)) <= datalen) {
zend_error(E_WARNING, "Insufficient data for unserializing - %ld required, %ld present", datalen, (long)(max - (*p)));
return 0;
}