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From: Ian Kent <raven@themaw.net>
To: Al Viro <viro@zeniv.linux.org.uk>
Cc: Edward Adam Davis <eadavis@qq.com>,
	syzbot+662f87a8ef490f45fa64@syzkaller.appspotmail.com,
	autofs@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com
Subject: Re: [PATCH] autofs: fix null deref in autofs_fill_super
Date: Wed, 15 Nov 2023 09:06:48 +0800	[thread overview]
Message-ID: <dcd50f92-e0e3-9a24-daf1-f2402f06518f@themaw.net> (raw)
In-Reply-To: <20231115003527.GW1957730@ZenIV>

On 15/11/23 08:35, Al Viro wrote:
> On Wed, Nov 15, 2023 at 08:18:33AM +0800, Ian Kent wrote:
>
>> I guess that including the locking is not going to make much difference.
>>
>> I don't remember now but it was probably done because there may be many
>>
>> mounts (potentially several thousand) being done and I wanted to get rid
>>
>> of anything that wasn't needed.
> Seeing that lock in question is not going to be contended... ;-)
>
> Seriously, though - the fewer complications we have in the locking rules,
> the better.

Sure, no problem, I'll make that change.

I do need to do a compile and test it actually ok works so it's

taking a little while.


Ian

>
> Al, currently going through audit of ->d_name/->d_parent uses and cursing
> at the 600-odd places left to look through...

  reply	other threads:[~2023-11-15  1:06 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-14  1:02 [syzbot] [autofs?] general protection fault in autofs_fill_super syzbot
2023-11-14  2:17 ` [syzbot] [PATCH] Test np " syzbot
2023-11-14  3:52 ` [PATCH] autofs: fix null deref " Edward Adam Davis
2023-11-14  4:25   ` Ian Kent
2023-11-14  4:41     ` Al Viro
2023-11-14  8:30       ` Ian Kent
2023-11-14 15:26         ` Al Viro
2023-11-15  0:18           ` Ian Kent
2023-11-15  0:35             ` Al Viro
2023-11-15  1:06               ` Ian Kent [this message]
2023-11-14  5:48     ` [PATCH V2] autofs: fix null ptr " Edward Adam Davis
2023-11-16  9:51 ` [syzbot] [autofs?] general protection fault " syzbot

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