From b508aaca27e9b94f6232f1882d64a12fc5f229d9 Mon Sep 17 00:00:00 2001
From: Ali Mashtizadeh <mashti@uwaterloo.ca>
Date: Tue, 5 Sep 2023 21:20:02 -0400
Subject: [PATCH] Fix handle use after free

---
 sys/kern/handle.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sys/kern/handle.c b/sys/kern/handle.c
index 49a2d82..cad6fa4 100644
--- a/sys/kern/handle.c
+++ b/sys/kern/handle.c
@@ -33,12 +33,12 @@ void
 Handle_Destroy(Process *proc)
 {
     int i;
-    Handle *handle;
+    Handle *handle, *handle_tmp;
 
     for (i = 0; i < PROCESS_HANDLE_SLOTS; i++) {
-	TAILQ_FOREACH(handle, &proc->handles[i], handleList) {
-	    (handle->close)(handle);
+	TAILQ_FOREACH_SAFE(handle, &proc->handles[i], handleList, handle_tmp) {
 	    TAILQ_REMOVE(&proc->handles[i], handle, handleList);
+	    (handle->close)(handle);
 	}
     }
 }