[PATCH 3/3] vhost: pass kthread user to check RLIMIT_NPROC
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STALE1935d
From: Mike Christie <michael.christie@oracle.com>
Date: 2021-06-24 03:09:07
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lkml
Subsystem:
the rest, virtio host (vhost) · Maintainers:
Linus Torvalds, "Michael S. Tsirkin", Jason Wang, Eugenio Pérez
This has vhost pass in the user to the kthread API, so the process doing the ioctl has its RLIMIT_NPROC checked and its processes count incremented. Signed-off-by: Mike Christie <michael.christie@oracle.com> --- drivers/vhost/vhost.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c
index 5ccb0705beae..141cca6fd50a 100644
--- a/drivers/vhost/vhost.c
+++ b/drivers/vhost/vhost.c@@ -595,8 +595,9 @@ long vhost_dev_set_owner(struct vhost_dev *dev) dev->kcov_handle = kcov_common_handle(); if (dev->use_worker) { - worker = kthread_create(vhost_worker, dev, - "vhost-%d", current->pid); + worker = kthread_create_for_user(vhost_worker, dev, + current->real_cred->user, + "vhost-%d", current->pid); if (IS_ERR(worker)) { err = PTR_ERR(worker); goto err_worker;
--
2.25.1
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