4.9-stable patches

4.9-stable patches

added patches:
	bpf-prevent-memory-disambiguation-attack.patch
	bpf-verifier-add-spi-variable-to-check_stack_write.patch
	bpf-verifier-pass-instruction-index-to-check_mem_access-and-check_xadd.patch
	btrfs-add-checker-for-extent_csum.patch
	btrfs-add-sanity-check-for-extent_data-when-reading-out-leaf.patch
	btrfs-check-if-item-pointer-overlaps-with-the-item-itself.patch
	btrfs-check-that-each-block-group-has-corresponding-chunk-at-mount-time.patch
	btrfs-move-leaf-and-node-validation-checker-to-tree-checker.c.patch
	btrfs-refactor-check_leaf-function-for-later-expansion.patch
	btrfs-struct-funcs-constify-readers.patch
	btrfs-tree-check-reduce-stack-consumption-in-check_dir_item.patch
	btrfs-tree-checker-add-checker-for-dir-item.patch
	btrfs-tree-checker-check-level-for-leaves-and-nodes.patch
	btrfs-tree-checker-detect-invalid-and-empty-essential-trees.patch
	btrfs-tree-checker-enhance-btrfs_check_node-output.patch
	btrfs-tree-checker-fix-false-panic-for-sanity-test.patch
	btrfs-tree-checker-fix-misleading-group-system-information.patch
	btrfs-tree-checker-use-zu-format-string-for-size_t.patch
	btrfs-tree-checker-verify-block_group_item.patch
	btrfs-validate-type-when-reading-a-chunk.patch
	btrfs-verify-that-every-chunk-has-corresponding-block-group-at-mount-time.patch
	f2fs-add-sanity_check_inode-function.patch
	f2fs-check-blkaddr-more-accuratly-before-issue-a-bio.patch
	f2fs-clean-up-with-is_valid_blkaddr.patch
	f2fs-detect-wrong-layout.patch
	f2fs-enhance-sanity_check_raw_super-to-avoid-potential-overflow.patch
	f2fs-fix-a-panic-caused-by-null-flush_cmd_control.patch
	f2fs-fix-missing-up_read.patch
	f2fs-fix-race-condition-in-between-free-nid-allocator-initializer.patch
	f2fs-fix-to-do-sanity-check-with-block-address-in-main-area-v2.patch
	f2fs-fix-to-do-sanity-check-with-block-address-in-main-area.patch
	f2fs-fix-to-do-sanity-check-with-cp_pack_start_sum.patch
	f2fs-fix-to-do-sanity-check-with-node-footer-and-iblocks.patch
	f2fs-fix-to-do-sanity-check-with-secs_per_zone.patch
	f2fs-fix-to-do-sanity-check-with-user_block_count.patch
	f2fs-free-meta-pages-if-sanity-check-for-ckpt-is-failed.patch
	f2fs-introduce-and-spread-verify_blkaddr.patch
	f2fs-return-error-during-fill_super.patch
	f2fs-sanity-check-on-sit-entry.patch
	hugetlbfs-check-for-pgoff-value-overflow.patch
	hugetlbfs-fix-offset-overflow-in-hugetlbfs-mmap.patch
	libceph-add-authorizer-challenge.patch
	libceph-check-authorizer-reply-challenge-length-before-reading.patch
	libceph-drop-len-argument-of-verify_authorizer_reply.patch
	libceph-factor-out-__ceph_x_decrypt.patch
	libceph-factor-out-__prepare_write_connect.patch
	libceph-factor-out-encrypt_authorizer.patch
	libceph-implement-cephx_v2-calculation-mode.patch
	libceph-no-need-to-drop-con-mutex-for-get_authorizer.patch
	libceph-store-ceph_auth_handshake-pointer-in-ceph_connection.patch
	libceph-weaken-sizeof-check-in-ceph_x_verify_authorizer_reply.patch
	mm-hugetlb.c-don-t-call-region_abort-if-region_chg-fails.patch
	wil6210-missing-length-check-in-wmi_set_ie.patch
	xfs-don-t-fail-when-converting-shortform-attr-to-long-form-during-attr_replace.patch