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Subject: Re: [PATCH][next] iwlegacy: ensure loop counter addr does not wrap
 and cause an infinite loop
From:   Kalle Valo <kvalo@codeaurora.org>
In-Reply-To: <20200126000954.22807-1-colin.king@canonical.com>
References: <20200126000954.22807-1-colin.king@canonical.com>
To:     Colin King <colin.king@canonical.com>
Cc:     Stanislaw Gruszka <stf_xl@wp.pl>,
        "David S . Miller" <davem@davemloft.net>,
        Meenakshi Venkataraman <meenakshi.venkataraman@intel.com>,
        Wey-Yi Guy <wey-yi.w.guy@intel.com>,
        Johannes Berg <johannes.berg@intel.com>,
        linux-wireless@vger.kernel.org, netdev@vger.kernel.org,
        kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org
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Message-Id: <20200126155206.5337DC4479C@smtp.codeaurora.org>
Date:   Sun, 26 Jan 2020 15:52:06 +0000 (UTC)
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Colin King <colin.king@canonical.com> wrote:

> From: Colin Ian King <colin.king@canonical.com>
> 
> The loop counter addr is a u16 where as the upper limit of the loop
> is an int. In the unlikely event that the il->cfg->eeprom_size is
> greater than 64K then we end up with an infinite loop since addr will
> wrap around an never reach upper loop limit. Fix this by making addr
> an int.
> 
> Addresses-Coverity: ("Infinite loop")
> Fixes: be663ab67077 ("iwlwifi: split the drivers for agn and legacy devices 3945/4965")
> Signed-off-by: Colin Ian King <colin.king@canonical.com>
> Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>

Patch applied to wireless-drivers-next.git, thanks.

c2f9a4e4a5ab iwlegacy: ensure loop counter addr does not wrap and cause an infinite loop

-- 
https://patchwork.kernel.org/patch/11351769/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches