1 files changed, 3 insertions, 0 deletions

diff --git a/mm/shmem.c b/mm/shmem.c
index f484c276e994..91b912b37b8c 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -1724,6 +1724,9 @@ static long shmem_fallocate(struct file *file, int mode, loff_t offset,
         pgoff_t start, index, end;
         int error;
 
+        if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE))
+                return -EOPNOTSUPP;
+
         mutex_lock(&inode->i_mutex);
 
         if (mode & FALLOC_FL_PUNCH_HOLE) {