Linux RDMA and InfiniBand development
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From: Leon Romanovsky <leon@kernel.org>
To: Mohamad Pishdar <mohamadpishdar@gmail.com>
Cc: security@kernel.org, jgg@ziepe.ca, linux-rdma@vger.kernel.org,
	shiraz.saleem@intel.com, tatyana.e.nikolova@intel.com
Subject: Re: [PATCH] RDMA/irdma: Restore original PD on rereg_user_mr failure
Date: Tue, 3 Nov 2026 14:12:46 +0200	[thread overview]
Message-ID: <20261103121246.GF264423@unreal> (raw)
In-Reply-To: <CAAAp7fgvKfLqxsZrvmq2+xtq=_AuGOmKLYijAsMk=bKCJFkSGQ@mail.gmail.com>

On Wed, Oct 28, 2026 at 11:07:01AM +0100, Mohamad Pishdar wrote:
> Hi,
> 
> While auditing the memory-region re-registration path in the irdma driver I
> found a case where irdma_rereg_user_mr() can leave a struct ib_mr pointing
> at a PD that the uverbs core no longer considers it to hold a reference on,
> if the reregistration itself fails partway through. I think this is worth a
> look before someone hits it in the field, so I'm sending the analysis and a
> proposed fix together rather than just the report.

Thanks for the bug report. Please submit a patch following the guidance in
Documentation/process/submitting-patches.rst. There is no need to CC the
security@ mailing list; this is a regular bug.

Thanks

       reply	other threads:[~2026-11-03 12:12 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CAAAp7fgvKfLqxsZrvmq2+xtq=_AuGOmKLYijAsMk=bKCJFkSGQ@mail.gmail.com>
2026-11-03 12:12 ` Leon Romanovsky [this message]
2026-11-03 13:39   ` [PATCH] RDMA/irdma: Restore original PD on rereg_user_mr failure Jacob Moroni
2026-11-03 19:42     ` Leon Romanovsky

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