linux-kernel - Re: [PATCH 34/38] vfs: syscall: Add fsinfo() to query filesystem information [ver #10]

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Date:   Tue, 31 Jul 2018 14:20:46 +0100
From:   David Howells <dhowells@...hat.com>
To:     Jann Horn <jannh@...gle.com>
Cc:     dhowells@...hat.com, Al Viro <viro@...iv.linux.org.uk>,
        Linux API <linux-api@...r.kernel.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        linux-fsdevel@...r.kernel.org,
        kernel list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 34/38] vfs: syscall: Add fsinfo() to query filesystem information [ver #10]

Jann Horn <jannh@...gle.com> wrote:

> > +       strcpy(p->f_fs_name, dentry->d_sb->s_type->name);
> 
> Can you use strlcpy() instead? From a quick look, I don't see anything
> that actually limits the size of filesystem names, even though
> everything in-kernel probably fits into the 16 bytes you've allocated
> for the name.

Sure.  Should I increase the field size to 32, I wonder?

David