This is a note to let you know that I've just added the patch titled
ext4: fix potential htree corruption when growing large_dir directories
to the 5.13-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-potential-htree-corruption-when-growing-large_dir-directories.patch
and it can be found in the queue-5.13 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 877ba3f729fd3d8ef0e29bc2a55e57cfa54b2e43 Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@xxxxxxx>
Date: Wed, 4 Aug 2021 14:23:55 -0400
Subject: ext4: fix potential htree corruption when growing large_dir directories
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From: Theodore Ts'o <tytso@xxxxxxx>
commit 877ba3f729fd3d8ef0e29bc2a55e57cfa54b2e43 upstream.
Commit b5776e7524af ("ext4: fix potential htree index checksum
corruption) removed a required restart when multiple levels of index
nodes need to be split. Fix this to avoid directory htree corruptions
when using the large_dir feature.
Cc: stable@xxxxxxxxxx # v5.11
Cc: Благодаренко Артём <artem.blagodarenko@xxxxxxxxx>
Fixes: b5776e7524af ("ext4: fix potential htree index checksum corruption)
Reported-by: Denis <denis@xxxxxxxxxxxxx>
Signed-off-by: Theodore Ts'o <tytso@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/ext4/namei.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -2517,7 +2517,7 @@ again:
goto journal_error;
err = ext4_handle_dirty_dx_node(handle, dir,
frame->bh);
- if (err)
+ if (restart || err)
goto journal_error;
} else {
struct dx_root *dxroot;
Patches currently in stable-queue which might be from tytso@xxxxxxx are
queue-5.13/ext4-fix-potential-htree-corruption-when-growing-large_dir-directories.patch
queue-5.13/ext4-fix-potential-uninitialized-access-to-retval-in.patch
