From eae97f8d10f6577349a316bf2045dc06486da783 Mon Sep 17 00:00:00 2001
From: "Yan, Zheng" <zyan@redhat.com>
Date: Wed, 13 Jan 2016 15:55:02 +0800
Subject: [PATCH] client: check if Fh is readable before read

Fixes: #11517
Signed-off-by: Yan, Zheng <zyan@redhat.com>
---
 src/client/Client.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/client/Client.cc b/src/client/Client.cc
index 9a0c36a5f46..44c3e76e19c 100644
--- a/src/client/Client.cc
+++ b/src/client/Client.cc
@@ -7405,6 +7405,8 @@ int Client::_read(Fh *f, int64_t offset, uint64_t size, bufferlist *bl)
   const md_config_t *conf = cct->_conf;
   Inode *in = f->inode.get();
 
+  if ((f->mode & CEPH_FILE_MODE_RD) == 0)
+    return -EBADF;
   //bool lazy = f->mode == CEPH_FILE_MODE_LAZY;
 
   bool movepos = false;
-- 
2.47.3