netdev - RE: [Intel-wired-lan] [PATCH][net-next] ice: fix potential infinite loop

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Message-ID: <26D9FDECA4FBDD4AADA65D8E2FC68A4A1D40F188@ORSMSX104.amr.corp.intel.com>
Date:   Mon, 5 Aug 2019 21:49:19 +0000
From:   "Bowers, AndrewX" <andrewx.bowers@...el.com>
To:     "intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
CC:     "kernel-janitors@...r.kernel.org" <kernel-janitors@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [Intel-wired-lan] [PATCH][net-next] ice: fix potential infinite
 loop

> -----Original Message-----
> From: Intel-wired-lan [mailto:intel-wired-lan-bounces@...osl.org] On
> Behalf Of Colin King
> Sent: Friday, August 2, 2019 8:52 AM
> To: Kirsher, Jeffrey T <jeffrey.t.kirsher@...el.com>; David S . Miller
> <davem@...emloft.net>; intel-wired-lan@...ts.osuosl.org;
> netdev@...r.kernel.org
> Cc: kernel-janitors@...r.kernel.org; linux-kernel@...r.kernel.org
> Subject: [Intel-wired-lan] [PATCH][net-next] ice: fix potential infinite loop
> 
> From: Colin Ian King <colin.king@...onical.com>
> 
> The loop counter of a for-loop is a u8 however this is being compared to an
> int upper bound and this can lead to an infinite loop if the upper bound is
> greater than 255 since the loop counter will wrap back to zero. Fix this
> potential issue by making the loop counter an int.
> 
> Addresses-Coverity: ("Infinite loop")
> Fixes: c7aeb4d1b9bf ("ice: Disable VFs until reset is completed")
> Signed-off-by: Colin Ian King <colin.king@...onical.com>
> ---
>  drivers/net/ethernet/intel/ice/ice_main.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Tested-by: Andrew Bowers <andrewx.bowers@...el.com>