1 files changed, 3 insertions, 1 deletions

diff --git a/fs/open.c b/fs/open.c
index 9156cb050d08..7931f76acc2b 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -823,7 +823,7 @@ static inline int build_open_flags(int flags, umode_t mode, struct open_flags *o
         int lookup_flags = 0;
         int acc_mode;
 
-        if (flags & O_CREAT)
+        if (flags & (O_CREAT | __O_TMPFILE))
                 op->mode = (mode & S_IALLUGO) | S_IFREG;
         else
                 op->mode = 0;
@@ -844,6 +844,8 @@ static inline int build_open_flags(int flags, umode_t mode, struct open_flags *o
                 if ((flags & O_TMPFILE_MASK) != O_TMPFILE)
                         return -EINVAL;
                 acc_mode = MAY_OPEN | ACC_MODE(flags);
+                if (!(acc_mode & MAY_WRITE))
+                        return -EINVAL;
         } else if (flags & O_PATH) {
                 /*
                  * If we have O_PATH in the open flag. Then we