From: Al Viro <viro@zeniv.linux.org.uk>
To: syzbot <syzbot+76a43f2b4d34cfc53548@syzkaller.appspotmail.com>,
akpm@osdl.org, deepa.kernel@gmail.com, hch@infradead.org,
jlayton@kernel.org, linux-fsdevel@vger.kernel.org,
linux-kernel@vger.kernel.org, lkundrak@v3.sk,
syzkaller-bugs@googlegroups.com, tklauser@nuerscht.ch,
trond.myklebust@fys.uio.no
Subject: Re: KASAN: use-after-free Read in mnt_warn_timestamp_expiry
Date: Thu, 17 Oct 2019 03:37:35 +0100 [thread overview]
Message-ID: <20191017023735.GS26530@ZenIV.linux.org.uk> (raw)
In-Reply-To: <20191017022705.GB1552@sol.localdomain>
On Wed, Oct 16, 2019 at 07:27:05PM -0700, Eric Biggers wrote:
> How about the following?
>
> pr_warn("%s filesystem being %s at %s supports timestamps until %04ld (0x%llx)\n",
> sb->s_type->name,
> is_mounted(mnt) ? "remounted" : "mounted",
> mntpath,
> tm.tm_year+1900, (unsigned long long)sb->s_time_max);
>
> I think more people would understand "remounted" than "reconfigured". Also,
> is_mounted(mnt) seems like a better choice than mnt_has_parent(real_mount(mnt)).
Works for me(tm). Care to fold that into your patch and resend?
next prev parent reply other threads:[~2019-10-17 2:37 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-17 1:42 KASAN: use-after-free Read in mnt_warn_timestamp_expiry syzbot
2019-10-17 1:47 ` Eric Biggers
2019-10-17 1:58 ` Al Viro
2019-10-17 2:27 ` Eric Biggers
2019-10-17 2:37 ` Al Viro [this message]
2019-10-17 2:50 ` Eric Biggers
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