From: Eric Biggers <ebiggers@kernel.org>
To: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Cc: Al Viro <viro@zeniv.linux.org.uk>,
linux-fsdevel@vger.kernel.org,
syzbot <syzbot+0341f6a4d729d4e0acf1@syzkaller.appspotmail.com>,
jmorris@namei.org, linux-kernel@vger.kernel.org,
linux-security-module@vger.kernel.org, serge@hallyn.com,
syzkaller-bugs@googlegroups.com, takedakn@nttdata.co.jp,
"David S. Miller" <davem@davemloft.net>
Subject: Re: [PATCH v2] tomoyo: Don't check open/getattr permission on sockets.
Date: Thu, 22 Aug 2019 00:01:29 -0700 [thread overview]
Message-ID: <20190822070129.GL6111@zzz.localdomain> (raw)
In-Reply-To: <201908220655.x7M6tVmv029579@www262.sakura.ne.jp>
On Thu, Aug 22, 2019 at 03:55:31PM +0900, Tetsuo Handa wrote:
> Eric Biggers wrote:
> > What happened to this patch?
>
> I have to learn how to manage a git tree for sending
> pull requests, but I can't find time to try.
>
> >
> > Also, isn't the same bug in other places too?:
> >
> > - tomoyo_path_chmod()
> > - tomoyo_path_chown()
> > - smack_inode_getsecurity()
> > - smack_inode_setsecurity()
>
> What's the bug? The file descriptor returned by open(O_PATH) cannot be
> passed to read(2), write(2), fchmod(2), fchown(2), fgetxattr(2), mmap(2) etc.
>
chmod(2), chown(2), getxattr(2), and setxattr(2) take a path, not a fd.
- Eric
next prev parent reply other threads:[~2019-08-22 7:01 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-05 18:42 KASAN: use-after-free Read in tomoyo_realpath_from_path syzbot
2019-06-05 22:09 ` Tetsuo Handa
2019-06-06 2:08 ` Tetsuo Handa
2019-06-06 5:20 ` Tetsuo Handa
2019-06-09 6:41 ` [PATCH] tomoyo: Don't check open/getattr permission on sockets Tetsuo Handa
2019-06-16 6:49 ` Tetsuo Handa
2019-06-18 20:49 ` Al Viro
2019-06-22 4:45 ` [PATCH v2] " Tetsuo Handa
2019-07-04 11:58 ` Tetsuo Handa
2019-07-07 2:44 ` James Morris
2019-07-07 2:50 ` James Morris
2019-08-09 15:51 ` Tetsuo Handa
2019-09-03 6:52 ` Tetsuo Handa
2019-09-13 13:41 ` Tetsuo Handa
[not found] ` <A9CE5147-4047-4C42-B772-F0ED510FA283@canb.auug.org.au>
2019-10-02 10:50 ` Tetsuo Handa
2019-10-02 22:25 ` Stephen Rothwell
2019-10-03 9:59 ` Tetsuo Handa
2019-11-13 13:49 ` Tetsuo Handa
2019-11-21 7:21 ` James Morris
2019-11-21 10:18 ` Tetsuo Handa
2019-11-21 13:59 ` Tetsuo Handa
2019-12-04 12:50 ` Tetsuo Handa
2019-12-09 21:37 ` James Morris
2019-12-10 10:21 ` Tetsuo Handa
2019-12-10 23:02 ` Stephen Rothwell
2019-12-11 11:19 ` Tetsuo Handa
2019-10-02 22:22 ` Stephen Rothwell
2019-08-22 6:30 ` Eric Biggers
2019-08-22 6:55 ` Tetsuo Handa
2019-08-22 7:01 ` Eric Biggers [this message]
2019-08-22 7:42 ` Tetsuo Handa
2019-08-22 15:47 ` Eric Biggers
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