linux-kernel - Re: [syzbot] [hfs?] possible deadlock in hfsplus_file

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Message-ID: <cab577ea-c84b-4450-af6f-62ab99ac937f@kernel.org>
Date: Tue, 8 Oct 2024 14:18:21 +0800
From: Chao Yu <chao@...nel.org>
To: syzbot <syzbot+325b61d3c9a17729454b@...kaller.appspotmail.com>,
 aha310510@...il.com, akpm@...ux-foundation.org, brauner@...nel.org,
 jack@...e.cz, jlayton@...nel.org, josef@...icpanda.com,
 linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
 syzkaller-bugs@...glegroups.com, viro@...iv.linux.org.uk, willy@...radead.org
Cc: Chao Yu <chao@...nel.org>
Subject: Re: [syzbot] [hfs?] possible deadlock in hfsplus_file_extend

#syz fix: hfsplus: fix to avoid false alarm of circular locking

On 2024/9/28 11:15, syzbot wrote:
> syzbot suspects this issue was fixed by commit:
> 
> commit be4edd1642ee205ed7bbf66edc0453b1be1fb8d7
> Author: Chao Yu <chao@...nel.org>
> Date:   Fri Jun 7 14:23:04 2024 +0000
> 
>      hfsplus: fix to avoid false alarm of circular locking
> 
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=16c5f59f980000
> start commit:   90d35da658da Linux 6.8-rc7
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=70429b75d4a1a401
> dashboard link: https://syzkaller.appspot.com/bug?extid=325b61d3c9a17729454b
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=159253ee180000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=11afd4fe180000
> 
> If the result looks correct, please mark the issue as fixed by replying with:
> 
> #syz fix: hfsplus: fix to avoid false alarm of circular locking
> 
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection