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;a=summary
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@xxxxxxxxxxxxxxx> know about it.
>From 0bd1ed4860d0f5f836aa8371797689a3779d1bf5 Mon Sep 17 00:00:00 2001
From: Ming Lei <ming.lei@xxxxxxxxxx>
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@xxxxxxxxxx>
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@xxxxxxxxxxxxxxx>
Cc: Dmitry Monakhov <dmonakhov@xxxxxxxxxx>
Fixes: 351499a172c0 ("block: Invalidate cache on discard v2")
Reviewed-by: Bart Van Assche <bart.vanassche@xxxxxxx>
Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxx>
Signed-off-by: Jens Axboe <axboe@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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@xxxxxxxxxx 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