From 5ebb71d8fbcb5834a035a48005a76b26e22f18f0 Mon Sep 17 00:00:00 2001
From: Levent Kaya <levent@dev>
Date: Tue, 17 Mar 2026 14:51:15 +0300
Subject: [PATCH] unix: prevent uv__make_subdirs_p buffer overflow

---
 src/unix/aix.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/unix/aix.c b/src/unix/aix.c
index af4190312..d99dc8fd5 100644
--- a/src/unix/aix.c
+++ b/src/unix/aix.c
@@ -542,7 +542,7 @@ static int uv__make_subdirs_p(const char *filename) {
   if (cmd_len + (size_t)dir_part_len + 1 > sizeof(cmd))
     return UV_ENAMETOOLONG;
 
-  strncat(cmd, filename, (p - filename));
+  strncat(cmd, filename, dir_part_len);
   rc = uv__makedir_p(cmd);
 
   if (rc == -1 && errno != EEXIST){