From 0d533a30cf645a1b6f97326e851cad1bdeaca35a Mon Sep 17 00:00:00 2001
From: Maxime Meignan <meignanmaxime@hotmail.fr>
Date: Thu, 27 Feb 2025 19:12:11 +0100
Subject: [PATCH] Fixed bound on memcpy loop in thumb,arm,aarch64

---
 pwnlib/shellcraft/templates/aarch64/memcpy.asm | 2 +-
 pwnlib/shellcraft/templates/arm/memcpy.asm     | 2 +-
 pwnlib/shellcraft/templates/thumb/memcpy.asm   | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/pwnlib/shellcraft/templates/aarch64/memcpy.asm b/pwnlib/shellcraft/templates/aarch64/memcpy.asm
index 8514ac6fd..468f0e339 100644
--- a/pwnlib/shellcraft/templates/aarch64/memcpy.asm
+++ b/pwnlib/shellcraft/templates/aarch64/memcpy.asm
@@ -16,4 +16,4 @@ ${memcpy_loop}:
     ldrb w3, [x1], #1
     strb w3, [x0], #1
     subs x2, x2, #1
-    bge ${memcpy_loop}
+    bgt ${memcpy_loop}
diff --git a/pwnlib/shellcraft/templates/arm/memcpy.asm b/pwnlib/shellcraft/templates/arm/memcpy.asm
index 8c4b2d877..b6714c157 100644
--- a/pwnlib/shellcraft/templates/arm/memcpy.asm
+++ b/pwnlib/shellcraft/templates/arm/memcpy.asm
@@ -16,4 +16,4 @@ ${memcpy_loop}:
     ldrb r3, [r1], #1
     strb r3, [r0], #1
     subs r2, r2, #1
-    bge ${memcpy_loop}
+    bgt ${memcpy_loop}
diff --git a/pwnlib/shellcraft/templates/thumb/memcpy.asm b/pwnlib/shellcraft/templates/thumb/memcpy.asm
index 250555c40..5f3ce2dc7 100644
--- a/pwnlib/shellcraft/templates/thumb/memcpy.asm
+++ b/pwnlib/shellcraft/templates/thumb/memcpy.asm
@@ -16,4 +16,4 @@ ${memcpy_loop}:
     ldrb r3, [r1], #1
     strb r3, [r4], #1
     subs r2, r2, #1
-    bge ${memcpy_loop}
+    bgt ${memcpy_loop}