All of lore.kernel.org
 help / color / mirror / Atom feed
From: syzbot <syzbot+c4f8158debe41f3bca37@syzkaller.appspotmail.com>
To: souradiptodas6@gmail.com
Cc: souradiptodas6@gmail.com, linux-kernel@vger.kernel.org,
	 syzkaller-bugs@googlegroups.com
Subject: Re: [syzbot] [mm?] WARNING: bad unlock balance in folios_put_refs
Date: Sat, 25 Apr 2026 11:39:03 -0700	[thread overview]
Message-ID: <69ed0a47.a00a0220.1901e8.0015.GAE@google.com> (raw)
In-Reply-To: <CAKVbAB0A83r8BTn_WojoryjtsAKfrowHNSautx_6_uhi638V0Q@mail.gmail.com>

> #syz test: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

This crash does not have a reproducer. I cannot test it.

> master
>
> diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
> index dc3fa6877..1d5bef2e4 100644
> --- a/include/linux/memcontrol.h
> +++ b/include/linux/memcontrol.h
> @@ -1524,6 +1524,7 @@ static inline void
> folio_lruvec_relock_irqsave(struct folio *folio,
>                         return;
>
>                 lruvec_unlock_irqrestore(*lruvecp, *flags);
> +              *lruvecp = NULL;
>         }
>
>         *lruvecp = folio_lruvec_lock_irqsave(folio, flags);
> -- 
> 2.53.0

       reply	other threads:[~2026-04-25 18:39 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CAKVbAB0A83r8BTn_WojoryjtsAKfrowHNSautx_6_uhi638V0Q@mail.gmail.com>
2026-04-25 18:39 ` syzbot [this message]
2026-04-24  5:09 [syzbot] [mm?] WARNING: bad unlock balance in folios_put_refs syzbot

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=69ed0a47.a00a0220.1901e8.0015.GAE@google.com \
    --to=syzbot+c4f8158debe41f3bca37@syzkaller.appspotmail.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=souradiptodas6@gmail.com \
    --cc=syzkaller-bugs@googlegroups.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.