linux-kernel - Re: [syzbot] INFO: task hung in ext4_put

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Message-ID: <20210716142057.0f1f6045@gmail.com>
Date:   Fri, 16 Jul 2021 14:20:57 +0300
From:   Pavel Skripkin <paskripkin@...il.com>
To:     syzbot <syzbot+deb25600c2fd79ffd367@...kaller.appspotmail.com>
Cc:     adilger.kernel@...ger.ca, clang-built-linux@...glegroups.com,
        linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org,
        nathan@...nel.org, ndesaulniers@...gle.com,
        syzkaller-bugs@...glegroups.com, tytso@....edu
Subject: Re: [syzbot] INFO: task hung in ext4_put_super

On Fri, 16 Jul 2021 03:17:09 -0700
syzbot <syzbot+deb25600c2fd79ffd367@...kaller.appspotmail.com> wrote:

> syzbot suspects this issue was fixed by commit:
> 
> commit 618f003199c6188e01472b03cdbba227f1dc5f24
> Author: Pavel Skripkin <paskripkin@...il.com>
> Date:   Fri Apr 30 18:50:46 2021 +0000
> 
>     ext4: fix memory leak in ext4_fill_super
> 
> bisection log:
> https://syzkaller.appspot.com/x/bisect.txt?x=17ebaa22300000 start
> commit:   2f7b98d1e55c Merge tag 'drm-fixes-2021-04-16' of
> git://ano.. git tree:       upstream kernel config:
> https://syzkaller.appspot.com/x/.config?x=398c4d0fe6f66e68 dashboard
> link: https://syzkaller.appspot.com/bug?extid=deb25600c2fd79ffd367
> syz repro:
> https://syzkaller.appspot.com/x/repro.syz?x=170d645ad00000 C
> reproducer:   https://syzkaller.appspot.com/x/repro.c?x=16a03a2ed00000
> 
> If the result looks correct, please mark the issue as fixed by
> replying with:
> 
> #syz fix: ext4: fix memory leak in ext4_fill_super
> 
> For information about bisection process see:
> https://goo.gl/tpsmEJ#bisection


This looks correct. I've tested this patch a long time ago, but forgot
to mark it as fixed.

#syz fix: ext4: fix memory leak in ext4_fill_super

 
With regards,
Pavel Skripkin