commit c9af617ac62b15bfcbbfe8c54071146e2af01f65
author Bram Moolenaar <Bram@vim.org> Wed May 04 16:46:54 2022 +0100
committer Bram Moolenaar <Bram@vim.org> Wed May 04 16:46:54 2022 +0100
tree d0eb268898ca64788550bf8ef728bf0ee5637ebb
parent 23d44493f1e82365f0a1dbd372fc2546811942f4

patch 8.2.4863: accessing freed memory in test without the +channel feature

Problem:    Accessing freed memory in test without the +channel feature.
            (Dominique Pellé)
Solution:   Do not generted PUSHCHANNEL or PUSHJOB if they are not
            implemented. (closes #10350)

src/vim9instr.c

diff --git a/src/vim9instr.c b/src/vim9instr.c
index 5a5e3c5..93ac062 100644
--- a/src/vim9instr.c
+++ b/src/vim9instr.c
@@ -755,12 +755,19 @@
     int
 generate_PUSHCHANNEL(cctx_T *cctx)
 {
+#ifdef FEAT_JOB_CHANNEL
     isn_T	*isn;
+#endif
 
     RETURN_OK_IF_SKIP(cctx);
+#ifdef FEAT_JOB_CHANNEL
     if ((isn = generate_instr_type(cctx, ISN_PUSHCHANNEL, &t_channel)) == NULL)
 	return FAIL;
     return OK;
+#else
+    emsg(_(e_channel_job_feature_not_available));
+    return FAIL;
+#endif
 }
 
 /*
@@ -769,12 +776,19 @@
     int
 generate_PUSHJOB(cctx_T *cctx)
 {
+#ifdef FEAT_JOB_CHANNEL
     isn_T	*isn;
+#endif
 
     RETURN_OK_IF_SKIP(cctx);
+#ifdef FEAT_JOB_CHANNEL
     if ((isn = generate_instr_type(cctx, ISN_PUSHJOB, &t_job)) == NULL)
 	return FAIL;
     return OK;
+#else
+    emsg(_(e_channel_job_feature_not_available));
+    return FAIL;
+#endif
 }
 
 /*