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From: Linus Torvalds <torvalds@linux-foundation.org>
To: Al Viro <viro@zeniv.linux.org.uk>
Cc: syzbot <syzbot+7a8ba368b47fdefca61e@syzkaller.appspotmail.com>,
	Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	linux-fsdevel <linux-fsdevel@vger.kernel.org>,
	Linux List Kernel Mailing <linux-kernel@vger.kernel.org>,
	syzkaller-bugs <syzkaller-bugs@googlegroups.com>,
	James Morris <jmorris@namei.org>,
	linux-security-module@vger.kernel.org
Subject: Re: KASAN: use-after-free Read in path_lookupat
Date: Wed, 10 Apr 2019 09:44:41 -1000	[thread overview]
Message-ID: <CAHk-=wg1hfdCE97hCCgRqW4=vbcAj8SaGhGffajg7B-aVenzNw@mail.gmail.com> (raw)
In-Reply-To: <20190410181135.GA32071@ZenIV.linux.org.uk>

On Wed, Apr 10, 2019 at 8:11 AM Al Viro <viro@zeniv.linux.org.uk> wrote:
>
> Both are in vfs.git#fixes.  Which way should that go - directly or
> via linux-security.git?

Just do it directly. I doubt you can trigger them for securityfs and
apparmourfs, since normal users have no way to remove any files from
them, so the race with final unlink sounds fairly irrelevant in
practice, no?

               Linus

  reply	other threads:[~2019-04-10 19:45 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-28 17:40 KASAN: use-after-free Read in path_lookupat syzbot
2019-03-25  0:44 ` syzbot
2019-03-25  1:25   ` Linus Torvalds
2019-03-25  1:23 ` Linus Torvalds
2019-03-25  4:57   ` Al Viro
2019-03-25  9:15     ` Daniel Borkmann
2019-03-25 11:11       ` Al Viro
2019-03-25 11:17         ` Al Viro
2019-03-25 11:21           ` Daniel Borkmann
2019-03-25 18:36     ` Linus Torvalds
2019-03-25 19:18       ` Linus Torvalds
2019-03-25 21:14         ` Al Viro
2019-03-25 21:45           ` Linus Torvalds
2019-03-25 22:04             ` Daniel Borkmann
2019-03-25 22:13               ` Linus Torvalds
2019-03-25 22:41                 ` Daniel Borkmann
2019-03-25 22:49               ` Al Viro
2019-03-25 23:37             ` Al Viro
2019-03-25 23:44               ` Alexei Starovoitov
2019-03-26  0:21                 ` Al Viro
2019-03-26  1:38               ` ceph: fix use-after-free on symlink traversal Al Viro
2019-03-26  1:39                 ` jffs2: " Al Viro
2019-03-26  1:40                 ` ubifs: " Al Viro
2019-03-26  1:43                 ` debugfs: " Al Viro
2019-03-26 10:41                 ` ceph: " Jeff Layton
2019-03-26 11:38                 ` Ilya Dryomov
2019-03-26  1:45               ` KASAN: use-after-free Read in path_lookupat Al Viro
2019-04-10 18:11                 ` Al Viro
2019-04-10 19:44                   ` Linus Torvalds [this message]
2019-03-25 19:43       ` Al Viro
2019-03-25 22:48         ` Dave Chinner
2019-03-25 23:02           ` Al Viro
     [not found]             ` <CAGe7X7mb=gK7zhSwmT_6mmmkcbjhZAOb=wj31BdUcHkNUPsm2Q@mail.gmail.com>
2019-03-26  4:15               ` Al Viro
2019-03-27 16:58                 ` Jan Kara
2019-03-27 18:59                   ` Al Viro
2019-03-28  9:00                     ` Jan Kara
2019-03-27 17:22             ` Jan Kara

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