commit c71ee829efa948eefec3b8f0dbacf172fc1a4992
author Bram Moolenaar <Bram@vim.org> Sat Nov 21 11:45:50 2020 +0100
committer Bram Moolenaar <Bram@vim.org> Sat Nov 21 11:45:50 2020 +0100
tree ddb7be7996ae83d8b5048ade69e3e892b8e099ed
parent 95388e3179f6b995dbc4acd3f23e3856bb0286fd

patch 8.2.2023: Vim: memory leak when :execute fails

Problem:    Vim: memory leak when :execute fails.
Solution:   Clear the growarray.

src/version.c

diff --git a/src/version.c b/src/version.c
index 303ecb3..5996bd6 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2023,
+/**/
     2022,
 /**/
     2021,

src/vim9execute.c

diff --git a/src/vim9execute.c b/src/vim9execute.c
index eca99f3..f154249 100644
--- a/src/vim9execute.c
+++ b/src/vim9execute.c
@@ -1200,7 +1200,10 @@
 		    }
 		    ectx.ec_stack.ga_len -= count;
 		    if (failed)
+		    {
+			ga_clear(&ga);
 			goto on_error;
+		    }
 
 		    if (ga.ga_data != NULL)
 		    {
@@ -1209,7 +1212,10 @@
 			    SOURCING_LNUM = iptr->isn_lnum;
 			    do_cmdline_cmd((char_u *)ga.ga_data);
 			    if (did_emsg)
+			    {
+				ga_clear(&ga);
 				goto on_error;
+			    }
 			}
 			else
 			{