Re: [PATCH] net: ipconfig: Fix NULL pointer dereference on RARP/BOOTP/DHCP timeout
From: David Miller <davem@davemloft.net>
Date: 2016-08-23 04:05:37
Also in:
lkml
From: Geert Uytterhoeven <geert+renesas@glider.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@glider.be>
Fixes: 2647cffb2bc6fbed ("net: ipconfig: Support using "delayed" DHCP replies")Applied.