Unable to handle kernel NULL pointer dereference at virtual address 000000c8
pgd = ec990000
[000000c8] *pgd=00000000
Internal error: Oops: 5 [#1] PREEMPT SMP ARM
CPU: 1    Tainted: G        W     (3.4.0-liberty)
PC is at __ip_route_output_key+0x49c/0x798
LR is at inet_select_addr+0xf8/0x104
pc : <c0709654>    lr : <c0735fc4>    psr: 20030013
sp : eca97c28  ip : 00000001  fp : 012ba8c0
r10: 00000000  r9 : 00000000  r8 : c11dcd00
r7 : 00000000  r6 : 00000000  r5 : 00000000  r4 : eca97cd4
r3 : ebe22100  r2 : ec0c0000  r1 : c11dccd8  r0 : 00000000
Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
Control: 10c5787d  Table: ad39006a  DAC: 00000015
..
Faulting Process ping (pid: 6719, stack limit = 0xeca962f0)
...
Call Stack
Kernel Panic in this func   __ip_route_output_key()  
				====>ip_route_output_flow()
				  ===>ping_v4_sendmsg()
				    ===>inet_sendmsg()
				       ===>sock_sendmsg()
                			  ===>__sys_sendmsg()
					     ===>sys_sendmsg()
kernel/net/ipv4/route.c
***********************
	dev_out = FIB_RES_DEV(res);
	fl4->flowi4_oif = dev_out->ifindex;
***********************
dev_out looks like  NULL. When dev_out is accessed it is resulting in NULL Ptr Def and finally Kernel Panic.


Any experts who can fix this issue. It is very rarely reproduced on ARM 32-bit ARCH.