xfs: abort metadata writeback on permanent errors

[firefly-linux-kernel-4.4.55.git] / fs / xfs / xfs_ioctl.c

diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index ea65a73d49ba3d9eebbad4f5793042545ccb66d4..33ad9a77791f7ebbf3f8762e0c9df1af637c5328 100644 (file)
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -23,28 +23,25 @@
 #include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_alloc.h"
 #include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_ioctl.h"
+#include "xfs_alloc.h"
 #include "xfs_rtalloc.h"
 #include "xfs_itable.h"
 #include "xfs_error.h"
 #include "xfs_attr.h"
 #include "xfs_bmap.h"
 #include "xfs_bmap_util.h"
-#include "xfs_trans.h"
-#include "xfs_buf_item.h"
 #include "xfs_fsops.h"
 #include "xfs_discard.h"
 #include "xfs_quota.h"
-#include "xfs_inode_item.h"
 #include "xfs_export.h"
 #include "xfs_trace.h"
 #include "xfs_icache.h"
 #include "xfs_symlink.h"
+#include "xfs_dinode.h"
+#include "xfs_trans.h"
 
 #include <linux/capability.h>
 #include <linux/dcache.h>
@@ -445,7 +442,8 @@ xfs_attrlist_by_handle(
                return -XFS_ERROR(EPERM);
        if (copy_from_user(&al_hreq, arg, sizeof(xfs_fsop_attrlist_handlereq_t)))
                return -XFS_ERROR(EFAULT);
-       if (al_hreq.buflen > XATTR_LIST_MAX)
+       if (al_hreq.buflen < sizeof(struct attrlist) ||
+           al_hreq.buflen > XATTR_LIST_MAX)
                return -XFS_ERROR(EINVAL);
 
        /*