diff --git a/fs/xfs/libxfs/xfs_attr_leaf.c b/fs/xfs/libxfs/xfs_attr_leaf.c index dcb09702cde2..ff0b63a71f78 100644 --- a/fs/xfs/libxfs/xfs_attr_leaf.c +++ b/fs/xfs/libxfs/xfs_attr_leaf.c @@ -267,6 +267,13 @@ xfs_attr3_leaf_verify_entry( */ if (ent->flags & XFS_ATTR_LOCAL) { lentry = xfs_attr3_leaf_name_local(leaf, idx); + + /* Validate lentry pointer is within bounds before field access */ + if ((char *)lentry >= buf_end) + return __this_address; + if ((char *)lentry + offsetof(struct xfs_attr_leaf_name_local, nameval) > buf_end) + return __this_address; + namesize = xfs_attr_leaf_entsize_local(lentry->namelen, be16_to_cpu(lentry->valuelen)); name_end = (char *)lentry + namesize; @@ -274,6 +281,13 @@ xfs_attr3_leaf_verify_entry( return __this_address; } else { rentry = xfs_attr3_leaf_name_remote(leaf, idx); + + /* Validate rentry pointer is within bounds before field access */ + if ((char *)rentry >= buf_end) + return __this_address; + if ((char *)rentry + offsetof(struct xfs_attr_leaf_name_remote, name) > buf_end) + return __this_address; + namesize = xfs_attr_leaf_entsize_remote(rentry->namelen); name_end = (char *)rentry + namesize; if (rentry->namelen == 0)