From: Jason Gunthorpe <jgg@ziepe.ca>
To: Jacob Moroni <jmoroni@google.com>
Cc: leon@kernel.org, linux-rdma@vger.kernel.org
Subject: Re: [PATCH] RDMA/mthca: Check for null udata during reg_user_mr
Date: Tue, 30 Jun 2026 12:59:21 -0300 [thread overview]
Message-ID: <20260630155921.GH7525@ziepe.ca> (raw)
In-Reply-To: <20260630155505.1707193-1-jmoroni@google.com>
On Tue, Jun 30, 2026 at 03:55:05PM +0000, Jacob Moroni wrote:
> The mthca driver was unconditionally checking udata->inlen,
> but udata could be null if the user intentionally triggers
> the UVERBS_METHOD_REG_MR ioctl. Prevent the potential null
> deref by adding a check.
???
reg_user_mr should never have a null udata how does this happen?
Jason
next prev parent reply other threads:[~2026-06-30 15:59 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-30 15:55 [PATCH] RDMA/mthca: Check for null udata during reg_user_mr Jacob Moroni
2026-06-30 15:59 ` Jason Gunthorpe [this message]
2026-06-30 16:04 ` Jacob Moroni
2026-06-30 17:43 ` Jason Gunthorpe
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