From d39100c01385815174f2c4ad2058b9b2a00c18f9 Mon Sep 17 00:00:00 2001
From: Anton Kling <anton@kling.gg>
Date: Fri, 22 Nov 2024 22:12:12 +0100
Subject: vfs: Close new file descriptor if already in use when calling dup2

---
 kernel/fs/vfs.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'kernel/fs')

diff --git a/kernel/fs/vfs.c b/kernel/fs/vfs.c
index d76e56c..9684a18 100644
--- a/kernel/fs/vfs.c
+++ b/kernel/fs/vfs.c
@@ -399,6 +399,7 @@ int vfs_dup2(int org_fd, int new_fd) {
   if (org_fd == new_fd) {
     return -EINVAL;
   }
+  vfs_close(new_fd);
 
   vfs_fd_t *orig;
   if (!relist_get(&current_task->file_descriptors, org_fd, (void **)&orig,
-- 
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