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From: Jason Gunthorpe <jgg@nvidia.com>
To: bernard.metzler@linux.dev
Cc: leon@kernel.org, linux-rdma@vger.kernel.org,
	Shuangpeng Bai <shuangpeng.kernel@gmail.com>
Subject: Re: [PATCH] RDMA/siw: Fix endpoint/socket association handling.
Date: Fri, 5 Jun 2026 14:26:43 -0300	[thread overview]
Message-ID: <20260605172643.GA2785196@nvidia.com> (raw)
In-Reply-To: <20260604160808.30948-1-bernard.metzler@linux.dev>

On Thu, Jun 04, 2026 at 06:08:08PM +0200, bernard.metzler@linux.dev wrote:
> From: Bernard Metzler <bernard.metzler@linux.dev>
> 
> Disassociating a socket from an endpoint via
> siw_socket_disassoc() may release the last reference on that
> endpoint and free it. Therefore, don't clear the endpoints
> socket pointer after calling that function, but within.
> 
> This fixes a
> 
> BUG: KASAN: slab-use-after-free in siw_cm_work_handler (drivers/infiniband/sw/siw/siw_cm.c:1053 drivers/infiniband/sw/siw/siw_cm.c:1075)
> 
> which occurred after processing a malformed MPA request
> during connection establishment, causing the new endpoint
> to be closed.
> 
> Fixes: 6c52fdc244b5c ("rdma/siw: connection management")
> Reported-by: Shuangpeng Bai <shuangpeng.kernel@gmail.com>
> Signed-off-by: Bernard Metzler <bernard.metzler@linux.dev>
> ---
>  drivers/infiniband/sw/siw/siw_cm.c | 30 +++++++++++++++---------------
>  1 file changed, 15 insertions(+), 15 deletions(-)

Applied to for-next, thanks

Jason

      reply	other threads:[~2026-06-05 17:26 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-06-04 16:08 [PATCH] RDMA/siw: Fix endpoint/socket association handling bernard.metzler
2026-06-05 17:26 ` Jason Gunthorpe [this message]

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