From 756751afa3709b89f7525d5142fdd44bb3afdab1 Mon Sep 17 00:00:00 2001
From: phanium <91544758+phanen@users.noreply.github.com>
Date: Fri, 30 May 2025 19:57:07 +0800
Subject: [PATCH] fix(terminal): stack overflow when too many csi args (#34012)

fix: stack overflow when too many csi args

Problem:
Crash when csi contains > 16 args. It's easy to trigger
when you attempt to pipe external terminal scrollback buffer.
```sh
nvim --clean --cmd "term printf
'\e[38:2:59:66:97;48:2:36:40:59;58:2:224:175:104;4:3m'"
```

Solution:
Increase buffer size.
---
 src/nvim/vterm/vterm_internal_defs.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/nvim/vterm/vterm_internal_defs.h b/src/nvim/vterm/vterm_internal_defs.h
index 19e809490f..69564e8529 100644
--- a/src/nvim/vterm/vterm_internal_defs.h
+++ b/src/nvim/vterm/vterm_internal_defs.h
@@ -15,7 +15,7 @@
 
 #define INTERMED_MAX 16
 
-#define CSI_ARGS_MAX 16
+#define CSI_ARGS_MAX 32
 #define CSI_LEADER_MAX 16
 
 #define BUFIDX_PRIMARY   0