Bug fix: Fix use after free when closing a pipe

The other inode might already have been freed when close() is called.

1 files changed, 3 insertions, 0 deletions

diff --git a/kernel/fs/tmpfs.c b/kernel/fs/tmpfs.c
index 2ce8ece..f979d92 100644
--- a/kernel/fs/tmpfs.c
+++ b/kernel/fs/tmpfs.c
@@ -7,6 +7,9 @@
 #include <typedefs.h>
 
 void tmp_close(vfs_fd_t *fd) {
+  if (!fd->inode->is_open) {
+    return;
+  }
   fd->inode->is_open = 0;
   ((tmp_inode *)fd->inode->internal_object)->read_inode->is_open = 0;
 }