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Date:   Fri, 14 Jun 2019 08:48:44 -0700 (PDT)
From:   David Miller <>
Subject: Re: [PATCH] nfc: Ensure presence of required attributes in the
 deactivate_target handler

From: Young Xiao <>
Date: Fri, 14 Jun 2019 15:13:02 +0800

> Check that the NFC_ATTR_TARGET_INDEX attributes (in addition to
> NFC_ATTR_DEVICE_INDEX) are provided by the netlink client prior to
> accessing them. This prevents potential unhandled NULL pointer dereference
> exceptions which can be triggered by malicious user-mode programs,
> if they omit one or both of these attributes.
> Signed-off-by: Young Xiao <>

Applied and queued up for -stable, thanks.

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