This is a note to let you know that I've just added the patch titled
btrfs: print-tree: parent bytenr must be aligned to sector size
to the 4.14-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:
btrfs-print-tree-parent-bytenr-must-be-aligned-to-sector-size.patch
and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From c87f318e6f47696b4040b58f460d5c17ea0280e6 Mon Sep 17 00:00:00 2001
From: Anastasia Belova <abelova@xxxxxxxxxxxxx>
Date: Wed, 26 Apr 2023 14:53:23 +0300
Subject: btrfs: print-tree: parent bytenr must be aligned to sector size
From: Anastasia Belova <abelova@xxxxxxxxxxxxx>
commit c87f318e6f47696b4040b58f460d5c17ea0280e6 upstream.
Check nodesize to sectorsize in alignment check in print_extent_item.
The comment states that and this is correct, similar check is done
elsewhere in the functions.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: ea57788eb76d ("btrfs: require only sector size alignment for parent eb bytenr")
CC: stable@xxxxxxxxxxxxxxx # 4.14+
Reviewed-by: Qu Wenruo <wqu@xxxxxxxx>
Signed-off-by: Anastasia Belova <abelova@xxxxxxxxxxxxx>
Reviewed-by: David Sterba <dsterba@xxxxxxxx>
Signed-off-by: David Sterba <dsterba@xxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/btrfs/print-tree.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/fs/btrfs/print-tree.c
+++ b/fs/btrfs/print-tree.c
@@ -130,10 +130,10 @@ static void print_extent_item(struct ext
pr_cont("shared data backref parent %llu count %u\n",
offset, btrfs_shared_data_ref_count(eb, sref));
/*
- * offset is supposed to be a tree block which
- * must be aligned to nodesize.
+ * Offset is supposed to be a tree block which must be
+ * aligned to sectorsize.
*/
- if (!IS_ALIGNED(offset, eb->fs_info->nodesize))
+ if (!IS_ALIGNED(offset, eb->fs_info->sectorsize))
pr_info(
"\t\t\t(parent %llu not aligned to sectorsize %u)\n",
offset, eb->fs_info->sectorsize);
Patches currently in stable-queue which might be from abelova@xxxxxxxxxxxxx are
queue-4.14/btrfs-print-tree-parent-bytenr-must-be-aligned-to-sector-size.patch
