Release regexp before signalling overflow error

* src/search.c (looking_at_1, search_buffer_re): Unfreeze the regexp
buffer before signalling a matcher overflow, since the error
processing may require quite some regexp use as well (Bug#34910).

1 files changed, 6 insertions, 1 deletions

diff --git a/src/search.c b/src/search.c
index 07ff0e47643..a450e920b03 100644
--- a/src/search.c
+++ b/src/search.c
@@ -319,7 +319,10 @@ looking_at_1 (Lisp_Object string, bool posix)
                   ZV_BYTE - BEGV_BYTE);
 
   if (i == -2)
-    matcher_overflow ();
+    {
+      unbind_to (count, Qnil);
+      matcher_overflow ();
+    }
 
   val = (i >= 0 ? Qt : Qnil);
   if (preserve_match_data && i >= 0)
@@ -1198,6 +1201,7 @@ search_buffer_re (Lisp_Object string, ptrdiff_t pos, ptrdiff_t pos_byte,
                          pos_byte - BEGV_BYTE);
       if (val == -2)
         {
+          unbind_to (count, Qnil);
           matcher_overflow ();
         }
       if (val >= 0)
@@ -1243,6 +1247,7 @@ search_buffer_re (Lisp_Object string, ptrdiff_t pos, ptrdiff_t pos_byte,
                          lim_byte - BEGV_BYTE);
       if (val == -2)
         {
+          unbind_to (count, Qnil);
           matcher_overflow ();
         }
       if (val >= 0)