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From: Ira Weiny <ira.weiny@intel.com>
To: Dan Carpenter <dan.carpenter@linaro.org>,
	Mike Rapoport <rppt@kernel.org>
Cc: Dan Williams <dan.j.williams@intel.com>,
	Vishal Verma <vishal.l.verma@intel.com>,
	Dave Jiang <dave.jiang@intel.com>,
	Ira Weiny <ira.weiny@intel.com>, <nvdimm@lists.linux.dev>,
	<linux-kernel@vger.kernel.org>, <kernel-janitors@vger.kernel.org>
Subject: Re: [PATCH next v2] nvdimm: Prevent integer overflow in ramdax_get_config_data()
Date: Wed, 26 Nov 2025 10:59:18 -0600	[thread overview]
Message-ID: <692731e69409a_8252d10055@iweiny-mobl.notmuch> (raw)
In-Reply-To: <aSbuiYCznEIZDa02@stanley.mountain>

Dan Carpenter wrote:
> The "cmd->in_offset" variable comes from the user via the __nd_ioctl()
> function.  The problem is that the "cmd->in_offset + cmd->in_length"
> addition could have an integer wrapping issue if cmd->in_offset is close
> to UINT_MAX .  Both "cmd->in_offset" and "cmd->in_length" are u32
> variables.
> 
> Fixes: 43bc0aa19a21 ("nvdimm: allow exposing RAM carveouts as NVDIMM DIMM devices")
> Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>

Staged.

Thanks!
Ira

[snip]

      parent reply	other threads:[~2025-11-26 16:57 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-11-26 12:11 Dan Carpenter
2025-11-26 13:21 ` Mike Rapoport
2025-11-26 16:59 ` Ira Weiny [this message]

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