From 6a7fb703c99d693ab452591cf5bd55706f15c425 Mon Sep 17 00:00:00 2001
From: Marsman <lqliuyuwei@outlook.com>
Date: Tue, 10 Feb 2026 11:26:14 +0000
Subject: [PATCH] fix: adjust memory allocation for argv to include null
 terminator

---
 src/header/unistd/mod.rs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/header/unistd/mod.rs b/src/header/unistd/mod.rs
index c2e03718e1..06f6c22521 100644
--- a/src/header/unistd/mod.rs
+++ b/src/header/unistd/mod.rs
@@ -1210,12 +1210,13 @@ unsafe fn with_argv(
         stack.as_mut_slice()
     } else if argc < 4096 {
         // TODO: Use ARG_MAX, not this hardcoded constant
-        let ptr = unsafe { crate::header::stdlib::malloc(argc * mem::size_of::<*const c_char>()) };
+        let ptr =
+            unsafe { crate::header::stdlib::malloc((argc + 1) * mem::size_of::<*const c_char>()) };
         if ptr.is_null() {
             platform::ERRNO.set(ENOMEM);
             return -1;
         }
-        unsafe { slice::from_raw_parts_mut(ptr.cast::<MaybeUninit<*const c_char>>(), argc) }
+        unsafe { slice::from_raw_parts_mut(ptr.cast::<MaybeUninit<*const c_char>>(), argc + 1) }
     } else {
         platform::ERRNO.set(E2BIG);
         return -1;