This is a note to let you know that I've just added the patch titled
block: pass inclusive 'lend' parameter to truncate_inode_pages_range
to the 4.15-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: block-pass-inclusive-lend-parameter-to-truncate_inode_pages_range.patch and it can be found in the queue-4.15 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 0bd1ed4860d0f5f836aa8371797689a3779d1bf5 Mon Sep 17 00:00:00 2001
From: Ming Lei ming.lei@redhat.com Date: Sat, 10 Feb 2018 08:46:17 +0800 Subject: block: pass inclusive 'lend' parameter to truncate_inode_pages_range
From: Ming Lei ming.lei@redhat.com
commit 0bd1ed4860d0f5f836aa8371797689a3779d1bf5 upstream.
The 'lend' parameter of truncate_inode_pages_range is required to be inclusive, so follow the rule.
This patch fixes one memory corruption triggered by discard.
Cc: stable@vger.kernel.org Cc: Dmitry Monakhov dmonakhov@openvz.org Fixes: 351499a172c0 ("block: Invalidate cache on discard v2") Reviewed-by: Bart Van Assche bart.vanassche@wdc.com Signed-off-by: Ming Lei ming.lei@redhat.com Signed-off-by: Jens Axboe axboe@kernel.dk Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- block/ioctl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/block/ioctl.c +++ b/block/ioctl.c @@ -225,7 +225,7 @@ static int blk_ioctl_discard(struct bloc
if (start + len > i_size_read(bdev->bd_inode)) return -EINVAL; - truncate_inode_pages_range(mapping, start, start + len); + truncate_inode_pages_range(mapping, start, start + len - 1); return blkdev_issue_discard(bdev, start >> 9, len >> 9, GFP_KERNEL, flags); }
Patches currently in stable-queue which might be from ming.lei@redhat.com are
queue-4.15/block-pass-inclusive-lend-parameter-to-truncate_inode_pages_range.patch queue-4.15/block-kyber-fix-domain-token-leak-during-requeue.patch