From: Al Viro <viro@zeniv.linux.org.uk>
To: 高翔 <gaoxiang17@xiaomi.com>
Cc: Xiang Gao <gxxa03070307@gmail.com>,
"brauner@kernel.org" <brauner@kernel.org>,
"oleg@redhat.com" <oleg@redhat.com>,
"mjguzik@gmail.com" <mjguzik@gmail.com>,
"Liam.Howlett@oracle.com" <Liam.Howlett@oracle.com>,
"joel.granados@kernel.org" <joel.granados@kernel.org>,
"lorenzo.stoakes@oracle.com" <lorenzo.stoakes@oracle.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: 答复: [External Mail]Re: [PATCH] pid: Add a judgment for ns null in pid_nr_ns
Date: Sat, 2 Aug 2025 06:54:05 +0100 [thread overview]
Message-ID: <20250802055405.GV222315@ZenIV> (raw)
In-Reply-To: <20250802055252.GU222315@ZenIV>
On Sat, Aug 02, 2025 at 06:52:52AM +0100, Al Viro wrote:
> ... for asynchronous callbacks if that sort there is no such thing as the current
of, even...
> process. At all. Using current, let alone looking for its PID, userns, etc. in
> such context is a bug. Don't do it. It's a bug in your module.
next prev parent reply other threads:[~2025-08-02 5:54 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-02 2:21 [PATCH] pid: Add a judgment for ns null in pid_nr_ns Xiang Gao
2025-08-02 2:25 ` Al Viro
[not found] ` <15b18541f37447dd8d5dbd8012662f67@xiaomi.com>
2025-08-02 5:52 ` 答复: [External Mail]Re: " Al Viro
2025-08-02 5:54 ` Al Viro [this message]
[not found] ` <c7968242db914979953277226fe55fc8@xiaomi.com>
2025-08-02 8:04 ` 答复: " Al Viro
2025-08-02 8:45 ` Oleg Nesterov
[not found] ` <80be47cb31d14ffc9f9a7d8d4408ab0a@xiaomi.com>
2025-08-04 11:49 ` Oleg Nesterov
2025-08-04 12:14 ` Christian Brauner
2025-08-04 12:44 ` Oleg Nesterov
2025-08-05 12:43 ` Oleg Nesterov
2025-08-08 14:56 ` Christian Brauner
2025-08-10 15:42 ` Oleg Nesterov
[not found] ` <aa5272ddcec944e2a35ca7104f6a86bf@xiaomi.com>
2025-08-05 19:43 ` 答复: [External Mail]Re: " Oleg Nesterov
2025-08-08 14:54 ` Christian Brauner
2025-08-02 8:43 ` Oleg Nesterov
2025-08-10 17:36 ` [PATCH 1/4] pid: make __task_pid_nr_ns(ns => NULL) safe for zombie callers Oleg Nesterov
2025-08-10 17:36 ` [PATCH 2/4] pid: introduce task_ppid_vnr() Oleg Nesterov
2025-08-10 17:36 ` [PATCH 3/4] pid: change bacct_add_tsk() to use task_ppid_nr_ns() Oleg Nesterov
2025-08-10 17:36 ` [PATCH 4/4] pid: change task_state() " Oleg Nesterov
2025-08-19 11:40 ` [PATCH] pid: Add a judgment for ns null in pid_nr_ns Christian Brauner
2025-08-19 14:25 ` Oleg Nesterov
2025-09-01 15:30 ` Oleg Nesterov
2025-09-01 15:44 ` Mateusz Guzik
2025-09-01 15:55 ` Mateusz Guzik
2025-09-02 14:37 ` Oleg Nesterov
2026-01-04 7:25 ` Qing Wang
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