From: <gregkh@linuxfoundation.org>
To: chandan@linux.vnet.ibm.com, adilger@dilger.ca,
gregkh@linuxfoundation.org, tytso@mit.edu
Cc: <stable@vger.kernel.org>, <stable-commits@vger.kernel.org>
Subject: Patch "ext4: fix mballoc breakage with 64k block size" has been added to the 4.4-stable tree
Date: Wed, 04 Jan 2017 11:06:00 +0100 [thread overview]
Message-ID: <1483524360221243@kroah.com> (raw)
This is a note to let you know that I've just added the patch titled
ext4: fix mballoc breakage with 64k block size
to the 4.4-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:
ext4-fix-mballoc-breakage-with-64k-block-size.patch
and it can be found in the queue-4.4 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 69e43e8cc971a79dd1ee5d4343d8e63f82725123 Mon Sep 17 00:00:00 2001
From: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Date: Mon, 14 Nov 2016 21:04:37 -0500
Subject: ext4: fix mballoc breakage with 64k block size
From: Chandan Rajendra <chandan@linux.vnet.ibm.com>
commit 69e43e8cc971a79dd1ee5d4343d8e63f82725123 upstream.
'border' variable is set to a value of 2 times the block size of the
underlying filesystem. With 64k block size, the resulting value won't
fit into a 16-bit variable. Hence this commit changes the data type of
'border' to 'unsigned int'.
Fixes: c9de560ded61f
Signed-off-by: Chandan Rajendra <chandan@linux.vnet.ibm.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Andreas Dilger <adilger@dilger.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/ext4/mballoc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -669,7 +669,7 @@ static void ext4_mb_mark_free_simple(str
ext4_grpblk_t min;
ext4_grpblk_t max;
ext4_grpblk_t chunk;
- unsigned short border;
+ unsigned int border;
BUG_ON(len > EXT4_CLUSTERS_PER_GROUP(sb));
Patches currently in stable-queue which might be from chandan@linux.vnet.ibm.com are
queue-4.4/ext4-fix-mballoc-breakage-with-64k-block-size.patch
queue-4.4/ext4-fix-stack-memory-corruption-with-64k-block-size.patch
reply other threads:[~2017-01-04 10:06 UTC|newest]
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