From: Jason Gunthorpe <jgg@nvidia.com>
To: Yasunori Goto <y-goto@fujitsu.com>
Cc: linux-rdma@vger.kernel.org, Doug Ledford <dledford@redhat.com>
Subject: Re: [PATCH] RDMA/core: EPERM should be returned when # of pined pages is over ulimit
Date: Thu, 26 Aug 2021 10:32:44 -0300 [thread overview]
Message-ID: <20210826133244.GQ1721383@nvidia.com> (raw)
In-Reply-To: <e3cb3dee-9c32-8024-1396-8dfd975a7b23@fujitsu.com>
On Fri, Aug 20, 2021 at 05:45:54PM +0900, Yasunori Goto wrote:
> static struct page **sev_pin_memory(struct kvm *kvm, unsigned long uaddr,
> :
> :
> if (locked > lock_limit && !capable(CAP_IPC_LOCK)) {
> pr_err("SEV: %lu locked pages exceed the lock limit of
> %lu.\n", locked, lock_limit);
> return ERR_PTR(-ENOMEM);
> }
>
> I think it is better than nothing. How do you think?
Unprivileged user space should not be allowed to cause the kernel to
print messages.
Jason
next prev parent reply other threads:[~2021-08-26 13:32 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-18 8:27 [PATCH] RDMA/core: EPERM should be returned when # of pined pages is over ulimit Yasunori Goto
2021-08-19 23:10 ` Jason Gunthorpe
2021-08-20 0:36 ` Yasunori Goto
2021-08-20 8:45 ` Yasunori Goto
2021-08-26 13:32 ` Jason Gunthorpe [this message]
2021-08-27 0:08 ` Gotou, Yasunori/五島 康文
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