netstat: kvm_read: Bad address

[Edgar Fuß <ef%math.uni-bonn.de@localhost>]

On a 4.0/amd64 machine I suddenly get
        netstat: kvm_read: Bad address
in my daily outputs.
Tracing netstat -i -I vlan9 reveals:

netstat  CALL  pread(4,0x7f7fffffe160,0x128,0,0xffff800009859e00)
netstat  GIO   fd 4 read 296 bytes
       "p\M^^\M^E       \0\M^@\M^?\M^?\0\0\0\0\0\0\0\0\M-D\M^^\M^E      
\0\M^@\M^?\M^?\0t\M^E   \0\M^@\M^?\M^?\0\M^?\
        \M^E    \0\M^@\M^?\M^? \M-!\M^E \0\M^@\M^?\M^?\0\0\0\0\0\0\0\0 
\^A\0\0\0\0\0\0\M-P\M^K\^W\M^@\M^?\M^?\M^?\M^?\
        
\0\0\0\0\v\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\^\\^X\0\0\0\0\0\0\M-~\M^@\0\
        
\^Q\0\0\0\0\^B\M-`\M^A\M^?\M-~@\M-'\M-,\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
        
\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\^\\^X\0\0\0\0\0\0\M^?\M^?\M^?\M^?\M^?\M^?\M^?\M^?\0\0\0\0\0\
        \0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0_\M^M   
\0\M^@\M^?\M^?\0\0\0\0\0\0\0\0\0\0\0\0\M^?\M^?\M^?\M^?\
        \M^?\M^?\M^?\M^?6\M-2\M-zO6\M-2\M-zO\0\0\0\0\0\0\0\0\0\0\0\0`   \M^E    
\0\M^@\M^?\M^?"
netstat  RET   pread 296/0x128
netstat  CALL  write(1,0x52b000,0x50)
netstat  GIO   fd 1 wrote 80 bytes
       "vlan9 1500  fe80::/64     fe80::2e0:81ff:fe   763845     0       23     
0     0
       "
netstat  RET   write 80/0x50
netstat  CALL  pread(4,0x7f7fffffe160,0x128,0,0xffff80000985ff00)
netstat  RET   pread -1 errno 14 Bad address

Any hints other than cosmic ray?