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Date: Mon, 22 Aug 2016 21:05:18 -0700 (PDT) From: David Miller <davem@...emloft.net> To: geert+renesas@...der.be Cc: u.kleine-koenig@...gutronix.de, treding@...dia.com, netdev@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH] net: ipconfig: Fix NULL pointer dereference on RARP/BOOTP/DHCP timeout From: Geert Uytterhoeven <geert+renesas@...der.be> Date: Mon, 22 Aug 2016 15:01:03 +0200 > If no RARP, BOOTP, or DHCP response is received, ic_dev is never set, > causing a NULL pointer dereference in ic_close_devs(): > > Sending DHCP requests ...... timed out! > Unable to handle kernel NULL pointer dereference at virtual address 00000004 > > To fix this, add a check to avoid dereferencing ic_dev if it is still > NULL. > > Signed-off-by: Geert Uytterhoeven <geert+renesas@...der.be> > Fixes: 2647cffb2bc6fbed ("net: ipconfig: Support using "delayed" DHCP replies") Applied.
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