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From: Mike Christie <michael.christie@oracle.com>
To: linux-kernel@vger.kernel.org,
	virtualization@lists.linux-foundation.org, mst@redhat.com,
	sgarzare@redhat.com, jasowang@redhat.com, stefanha@redhat.com,
	christian@brauner.io, akpm@linux-foundation.org,
	peterz@infradead.org, christian.brauner@ubuntu.com
Subject: [PATCH 0/3] kthread: pass in user and check RLIMIT_NPROC
Date: Wed, 23 Jun 2021 22:08:01 -0500	[thread overview]
Message-ID: <20210624030804.4932-1-michael.christie@oracle.com> (raw)

The vhost driver will create a kthread when userspace does a
VHOST_SET_OWNER ioctl, but the thread is charged to the kthreadd thread.
We can then end up violating the userspace process's RLIMIT_NPROC. This
patchset allows drivers to pass in the user to charge/check.

The patches were made over Linus's current tree.




WARNING: multiple messages have this Message-ID (diff)
From: Mike Christie <michael.christie@oracle.com>
To: linux-kernel@vger.kernel.org,
	virtualization@lists.linux-foundation.org, mst@redhat.com,
	sgarzare@redhat.com, jasowang@redhat.com, stefanha@redhat.com,
	christian@brauner.io, akpm@linux-foundation.org,
	peterz@infradead.org, christian.brauner@ubuntu.com
Subject: [PATCH 0/3] kthread: pass in user and check RLIMIT_NPROC
Date: Wed, 23 Jun 2021 22:08:01 -0500	[thread overview]
Message-ID: <20210624030804.4932-1-michael.christie@oracle.com> (raw)

The vhost driver will create a kthread when userspace does a
VHOST_SET_OWNER ioctl, but the thread is charged to the kthreadd thread.
We can then end up violating the userspace process's RLIMIT_NPROC. This
patchset allows drivers to pass in the user to charge/check.

The patches were made over Linus's current tree.



_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

             reply	other threads:[~2021-06-24  3:09 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-24  3:08 Mike Christie [this message]
2021-06-24  3:08 ` [PATCH 0/3] kthread: pass in user and check RLIMIT_NPROC Mike Christie
2021-06-24  3:08 ` [PATCH 1/3] kthread: allow caller to pass in user_struct Mike Christie
2021-06-24  3:08   ` Mike Christie
2021-06-24  4:34   ` kernel test robot
2021-06-24  4:34     ` kernel test robot
2021-06-24  4:34     ` kernel test robot
2021-06-24 16:19     ` Mike Christie
2021-06-24 16:19       ` Mike Christie
2021-06-24 16:19       ` Mike Christie
2021-06-24  3:08 ` [PATCH 2/3] kernel/fork, cred.c: allow copy_process to take user Mike Christie
2021-06-24  3:08   ` Mike Christie
2021-06-29 13:04   ` Christian Brauner
2021-06-29 16:53     ` Mike Christie
2021-06-29 16:53       ` Mike Christie
2021-07-01 23:59       ` michael.christie
2021-07-01 23:59         ` michael.christie
2021-06-24  3:08 ` [PATCH 3/3] vhost: pass kthread user to check RLIMIT_NPROC Mike Christie
2021-06-24  3:08   ` Mike Christie
2021-06-24  8:26   ` kernel test robot
2021-06-24  8:26     ` kernel test robot
2021-06-24  8:26     ` kernel test robot
2021-06-24 16:18     ` Mike Christie
2021-06-24 16:18       ` Mike Christie
2021-06-24 16:18       ` Mike Christie
2021-06-24  7:34 ` [PATCH 0/3] kthread: pass in user and " Michael S. Tsirkin
2021-06-24  7:34   ` Michael S. Tsirkin
2021-06-24  9:40 ` Stefan Hajnoczi
2021-06-24  9:40   ` Stefan Hajnoczi

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