linux-kernel - Re: [syzbot] [mm?] usb-testing boot error: WARNING: refcount bug in __reset_page

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Date: Tue, 26 Mar 2024 19:13:45 +0900
From: Tetsuo Handa <penguin-kernel@...ove.SAKURA.ne.jp>
To: Oscar Salvador <osalvador@...e.de>,
        syzbot <syzbot+73c1dfb19c10b7e49777@...kaller.appspotmail.com>
Cc: akpm@...ux-foundation.org, linux-kernel@...r.kernel.org,
        linux-mm@...ck.org, linux-usb@...r.kernel.org,
        syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [mm?] usb-testing boot error: WARNING: refcount bug in
 __reset_page_owner

On 2024/03/26 18:16, Oscar Salvador wrote:
> On Tue, Mar 26, 2024 at 01:25:40AM -0700, syzbot wrote:
>> Hello,
>>
>> syzbot found the following issue on:
>>
> ...
>> ------------[ cut here ]------------
>> refcount_t: decrement hit 0; leaking memory.
>> WARNING: CPU: 0 PID: 1 at lib/refcount.c:31 refcount_warn_saturate+0x1ed/0x210 lib/refcount.c:31
> 
> This is fixed by [1]
> 
> [1] https://lore.kernel.org/linux-mm/20240326063036.6242-1-osalvador@suse.de/
> 
> 

The correct format is shown below.

#syz fix: mm,page_owner: Fix refcount imbalance