linux-kernel - Re: [syzbot] Re: [syzbot] [ext4?] KASAN: slab-use-after-free Read in fsnotify

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Message-Id: <20240416225027.2499-1-hdanton@sina.com>
Date: Wed, 17 Apr 2024 06:50:27 +0800
From: Hillf Danton <hdanton@...a.com>
To: Jan Kara <jack@...e.cz>
Cc: Amir Goldstein <amir73il@...il.com>,
	syzbot <syzbot+5e3f9b2a67b45f16d4e6@...kaller.appspotmail.com>,
	linux-fsdevel@...r.kernel.org,
	syzkaller-bugs@...glegroups.com,
	linux-kernel@...r.kernel.org,
	Christian Brauner <brauner@...nel.org>
Subject: Re: [syzbot] Re: [syzbot] [ext4?] KASAN: slab-use-after-free Read in fsnotify

On Tue, 16 Apr 2024 19:32:11 +0200 Jan Kara <jack@...e.cz>
>
> Hum, thinking about this some more - what if we just freed sb_info from
> destroy_super_work()? By then we definitely are not getting fsnotify()
> calls for the superblock so all the problems are solved.
>
Sounds better :)