1 files changed, 7 insertions, 3 deletions

diff --git a/fs/xfs/quota/xfs_qm_syscalls.c b/fs/xfs/quota/xfs_qm_syscalls.c
index 26fa43140f2e..92b002f1805f 100644
--- a/fs/xfs/quota/xfs_qm_syscalls.c
+++ b/fs/xfs/quota/xfs_qm_syscalls.c
@@ -448,6 +448,9 @@ xfs_qm_scall_getqstat(
         return 0;
 }
 
+#define XFS_DQ_MASK \
+        (FS_DQ_LIMIT_MASK | FS_DQ_TIMER_MASK | FS_DQ_WARNS_MASK)
+
 /*
  * Adjust quota limits, and start/stop timers accordingly.
  */
@@ -465,9 +468,10 @@ xfs_qm_scall_setqlim(
         int                     error;
         xfs_qcnt_t              hard, soft;
 
-        if ((newlim->d_fieldmask &
-            (FS_DQ_LIMIT_MASK|FS_DQ_TIMER_MASK|FS_DQ_WARNS_MASK)) == 0)
-                return (0);
+        if (newlim->d_fieldmask & ~XFS_DQ_MASK)
+                return EINVAL;
+        if ((newlim->d_fieldmask & XFS_DQ_MASK) == 0)
+                return 0;
 
         tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SETQLIM);
         if ((error = xfs_trans_reserve(tp, 0, sizeof(xfs_disk_dquot_t) + 128,