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-rw-r--r--fs/ntfs/attrib.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/fs/ntfs/attrib.c b/fs/ntfs/attrib.c
index cec4be2a2d23..a3865bc4a0c6 100644
--- a/fs/ntfs/attrib.c
+++ b/fs/ntfs/attrib.c
@@ -617,6 +617,14 @@ static int ntfs_attr_find(const ATTR_TYPE type, const ntfschar *name,
return -ENOENT;
if (unlikely(!a->length))
break;
+
+ /* check whether ATTR_RECORD's length wrap */
+ if ((u8 *)a + le32_to_cpu(a->length) < (u8 *)a)
+ break;
+ /* check whether ATTR_RECORD's length is within bounds */
+ if ((u8 *)a + le32_to_cpu(a->length) > mrec_end)
+ break;
+
if (a->type != type)
continue;
/*