2 files changed, 3 insertions, 1 deletions
diff --git a/string.c b/string.c
index b48c54adf9..2d16c910c8 100644
--- a/string.c
+++ b/string.c
@@ -3298,6 +3298,7 @@ rb_str_buf_append(VALUE str, VALUE str2)
           case ENC_CODERANGE_7BIT:
             // If RHS is 7bit we can do simple concatenation
             str_buf_cat4(str, RSTRING_PTR(str2), RSTRING_LEN(str2), true);
+            RB_GC_GUARD(str2);
             return str;
           case ENC_CODERANGE_VALID:
             // If RHS is valid, we can do simple concatenation if encodings are the same
@@ -3307,6 +3308,7 @@ rb_str_buf_append(VALUE str, VALUE str2)
                 if (UNLIKELY(str_cr != ENC_CODERANGE_VALID)) {
                     ENC_CODERANGE_SET(str, RB_ENC_CODERANGE_AND(str_cr, str2_cr));
                 }
+                RB_GC_GUARD(str2);
                 return str;
             }
         }
diff --git a/version.h b/version.h
index c94967bf56..b1cf86767a 100644
--- a/version.h
+++ b/version.h
@@ -11,7 +11,7 @@
 # define RUBY_VERSION_MINOR RUBY_API_VERSION_MINOR
 #define RUBY_VERSION_TEENY 2
 #define RUBY_RELEASE_DATE RUBY_RELEASE_YEAR_STR"-"RUBY_RELEASE_MONTH_STR"-"RUBY_RELEASE_DAY_STR
-#define RUBY_PATCHLEVEL 118
+#define RUBY_PATCHLEVEL 119
 
 #include "ruby/version.h"
 #include "ruby/internal/abi.h"