Patch "xfs: fix integer truncation in xfs_bmap_remap_alloc" has been added to the 4.11-stable tree

Patch "xfs: fix integer truncation in xfs_bmap_remap_alloc" has been added to the 4.11-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    xfs: fix integer truncation in xfs_bmap_remap_alloc

to the 4.11-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     xfs-fix-integer-truncation-in-xfs_bmap_remap_alloc.patch
and it can be found in the queue-4.11 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 52813fb13ff90bd9c39a93446cbf1103c290b6e9 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Tue, 11 Apr 2017 16:45:52 -0700
Subject: xfs: fix integer truncation in xfs_bmap_remap_alloc

From: Christoph Hellwig <hch@lst.de>

commit 52813fb13ff90bd9c39a93446cbf1103c290b6e9 upstream.

bno should be a xfs_fsblock_t, which is 64-bit wides instead of a
xfs_aglock_t, which truncates the value to 32 bits.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 fs/xfs/libxfs/xfs_bmap.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/xfs/libxfs/xfs_bmap.c
+++ b/fs/xfs/libxfs/xfs_bmap.c
@@ -3863,7 +3863,7 @@ xfs_bmap_remap_alloc(
 {
 	struct xfs_trans	*tp = ap->tp;
 	struct xfs_mount	*mp = tp->t_mountp;
-	xfs_agblock_t		bno;
+	xfs_fsblock_t		bno;
 	struct xfs_alloc_arg	args;
 	int			error;
 


Patches currently in stable-queue which might be from hch@lst.de are

queue-4.11/nvme-use-blk_mq_start_hw_queues-in-nvme_kill_queues.patch
queue-4.11/xfs-fix-over-copying-of-getbmap-parameters-from-userspace.patch
queue-4.11/xfs-bmapx-shouldn-t-barf-on-inline-format-directories.patch
queue-4.11/nvme-avoid-to-use-blk_mq_abort_requeue_list.patch
queue-4.11/mm-avoid-spurious-bad-pmd-warning-messages.patch
queue-4.11/scsi-scsi_dh_rdac-use-ctlr-directly-in-rdac_failover_get.patch
queue-4.11/dax-fix-race-between-colliding-pmd-pte-entries.patch
queue-4.11/nvme-rdma-support-devices-with-queue-size-32.patch
queue-4.11/net-smc-add-warning-about-remote-memory-exposure.patch
queue-4.11/xfs-xfs_trans_alloc_empty.patch
queue-4.11/xfs-fix-integer-truncation-in-xfs_bmap_remap_alloc.patch
queue-4.11/xfs-actually-report-xattr-extents-via-iomap.patch
queue-4.11/xfs-fix-use-after-free-in-xfs_finish_page_writeback.patch
queue-4.11/xfs-reserve-enough-blocks-to-handle-btree-splits-when-remapping.patch