From: "Martin K. Petersen" <mkp@kernel.org>
To: James Houghton <jthoughton@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Alexander Viro <viro@zeniv.linux.org.uk>,
Thomas Gleixner <tglx@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Kees Cook <kees@kernel.org>, Arnd Bergmann <arnd@arndb.de>,
David Hildenbrand <david@kernel.org>,
Lorenzo Stoakes <ljs@kernel.org>,
"Liam R. Howlett" <liam@infradead.org>,
Vlastimil Babka <vbabka@kernel.org>,
Mike Rapoport <rppt@kernel.org>,
Suren Baghdasaryan <surenb@google.com>,
Michal Hocko <mhocko@suse.com>,
Sean Christopherson <seanjc@google.com>,
Paolo Bonzini <pbonzini@redhat.com>,
Jim Mattson <jmattson@google.com>, Jens Axboe <axboe@kernel.dk>,
Pavel Begunkov <asml.silence@gmail.com>,
"James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>,
"Martin K. Petersen" <mkp@kernel.org>,
David Sterba <dsterba@suse.com>, Chris Mason <mason@kernel.org>,
Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>,
John Fastabend <john.fastabend@gmail.com>,
Josh Poimboeuf <jpoimboe@kernel.org>,
Steven Rostedt <rostedt@goodmis.org>,
Masami Hiramatsu <mhiramat@kernel.org>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Ingo Molnar <mingo@redhat.com>,
Arnaldo Carvalho de Melo <acme@kernel.org>,
Namhyung Kim <namhyung@kernel.org>,
linux-mm@kvack.org, linux-fsdevel@vger.kernel.org,
kvm@vger.kernel.org, io-uring@vger.kernel.org,
linux-scsi@vger.kernel.org, linux-btrfs@vger.kernel.org,
bpf@vger.kernel.org, linux-trace-kernel@vger.kernel.org,
linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH 01/10] scsi: bsg: Don't copy sense data to user memory when canceled
Date: Tue, 03 Nov 2026 22:39:01 -0500 [thread overview]
Message-ID: <yq1fqxh1d15.fsf@mail.kernel.org> (raw)
In-Reply-To: <20261026215226.3713941-2-jthoughton@google.com>
James,
> scsi_bsg_uring_task_cb() copies the sense data to the submitter's
> response_addr with copy_to_user(). It runs as io_uring task work, but
> io_uring may also run it with tw.cancel set from other contexts when the
> submitting task can't run it: from a kworker when the submitting task
> has exited (io_tctx_fallback_work()), or from io_cancel_local_task_work()
> when a DEFER_TASKRUN ring is torn down.
Applied to 7.4/scsi-fixes, thanks!
--
Martin K. Petersen
next prev parent reply other threads:[~2026-11-04 3:39 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-26 21:52 [RFC PATCH 00/10] uaccess: Refuse and warn on user accesses when current->mm is NULL James Houghton
2026-10-26 21:52 ` [RFC PATCH 01/10] scsi: bsg: Don't copy sense data to user memory when canceled James Houghton
2026-10-27 2:41 ` Jens Axboe
2026-10-27 17:52 ` James Houghton
2026-11-04 3:39 ` Martin K. Petersen [this message]
2026-10-26 21:52 ` [RFC PATCH 02/10] btrfs: Don't copy encoded read " James Houghton
2026-10-27 2:42 ` Jens Axboe
2026-10-26 21:52 ` [RFC PATCH 03/10] bpf: Fail sleepable user copy helpers when current->mm is NULL James Houghton
2026-10-26 22:30 ` bot+bpf-ci
2026-10-27 18:50 ` James Houghton
2026-10-26 21:52 ` [RFC PATCH 04/10] stacktrace: Don't unwind the user stack without an mm James Houghton
2026-10-26 22:30 ` bot+bpf-ci
2026-10-26 22:55 ` James Houghton
2026-10-26 21:52 ` [RFC PATCH 05/10] perf/core: " James Houghton
2026-10-27 11:09 ` Peter Zijlstra
2026-10-27 17:45 ` James Houghton
2026-10-26 21:52 ` [RFC PATCH 06/10] uaccess: Refuse and warn on user copies when current->mm is NULL James Houghton
2026-10-26 22:42 ` bot+bpf-ci
2026-10-26 23:41 ` James Houghton
2026-10-26 21:52 ` [RFC PATCH 07/10] uaccess: Fail user nofault helpers quietly " James Houghton
2026-10-26 21:52 ` [RFC PATCH 08/10] uaccess: Refuse and warn on __copy_from_user_inatomic() without an mm James Houghton
2026-10-26 22:30 ` bot+bpf-ci
2026-10-26 22:41 ` James Houghton
2026-10-26 21:52 ` [RFC PATCH 09/10] uaccess: Refuse and warn on more user accesses " James Houghton
2026-10-26 21:52 ` [RFC PATCH 10/10] uaccess: Move the NULL mm warning out of line James Houghton
2026-10-26 23:02 ` Arnd Bergmann
2026-10-26 23:51 ` James Houghton
2026-10-27 0:12 ` [RFC PATCH 00/10] uaccess: Refuse and warn on user accesses when current->mm is NULL Arnd Bergmann
2026-10-27 10:33 ` Arnd Bergmann
2026-10-27 17:29 ` James Houghton
2026-10-27 18:32 ` Arnd Bergmann
2026-10-27 21:18 ` Sean Christopherson
2026-10-27 23:17 ` James Houghton
2026-10-28 23:13 ` Arnd Bergmann
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