This is a note to let you know that I've just added the patch titled
md: fix double free of io_acct_set bioset
to the 5.17-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:
md-fix-double-free-of-io_acct_set-bioset.patch
and it can be found in the queue-5.17 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 42b805af102471f53e3c7867b8c2b502ea4eef7e Mon Sep 17 00:00:00 2001
From: Xiao Ni <xni@xxxxxxxxxx>
Date: Thu, 12 May 2022 17:21:09 +0800
Subject: md: fix double free of io_acct_set bioset
From: Xiao Ni <xni@xxxxxxxxxx>
commit 42b805af102471f53e3c7867b8c2b502ea4eef7e upstream.
Now io_acct_set is alloc and free in personality. Remove the codes that
free io_acct_set in md_free and md_stop.
Fixes: 0c031fd37f69 (md: Move alloc/free acct bioset in to personality)
Signed-off-by: Xiao Ni <xni@xxxxxxxxxx>
Signed-off-by: Song Liu <song@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/md/md.c | 4 ----
1 file changed, 4 deletions(-)
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -5600,8 +5600,6 @@ static void md_free(struct kobject *ko)
bioset_exit(&mddev->bio_set);
bioset_exit(&mddev->sync_set);
- if (mddev->level != 1 && mddev->level != 10)
- bioset_exit(&mddev->io_acct_set);
kfree(mddev);
}
@@ -6288,8 +6286,6 @@ void md_stop(struct mddev *mddev)
__md_stop(mddev);
bioset_exit(&mddev->bio_set);
bioset_exit(&mddev->sync_set);
- if (mddev->level != 1 && mddev->level != 10)
- bioset_exit(&mddev->io_acct_set);
}
EXPORT_SYMBOL_GPL(md_stop);
Patches currently in stable-queue which might be from xni@xxxxxxxxxx are
queue-5.17/md-don-t-set-mddev-private-to-null-in-raid0-pers-free.patch
queue-5.17/md-fix-double-free-of-io_acct_set-bioset.patch
