On Thursday, December 3, 2015 at 2:30:24 AM UTC-8, manasa gowda wrote:
> Hi,
> 
> 
> Bind version used is 9.6.2-P2.
> Named crashed (In panic State) with INSIST Assertion error. The following  is 
> backtrace
> 
> 
> 
> #2  0x000000000041b635 in assertion_failed (file=0x5b2e78 
> "src/contrib/bind9/lib/isc/unix/socket.c", line=2605, 
> type=isc_assertiontype_insist, cond=0x5b420f "!sock->pending_recv") 
> atsrc/contrib/bind9/bin/named/main.c:162
> #3  0x000000000056f723 in dispatch_recv (sock=<optimized out>) 
> atsrc/contrib/bind9/lib/isc/unix/socket.c:2605
> #4  process_fd (writeable=<optimized out>, readable=<optimized out>, fd=513, 
> manager=<optimized out>) atsrc/contrib/bind9/lib/isc/unix/socket.c:3256
> #5  process_fds (nevents=<optimized out>, events=<optimized out>, 
> manager=<optimized out>) at src/contrib/bind9/lib/isc/unix/socket.c:3322
> #6  watcher (uap=0x8022300c0) atsrc/contrib/bind9/lib/isc/unix/socket.c:3581
> #7  0x000000080198f1bc in thread_start (curthread=0x802205600) 
> at../../../../../lib/libthr/thread/thr_create.c:292
> 
> 
> I did a google search but I found the insist assertion error with other bind 
> versions also. Can you please help me in finding it out the reason for this 
> panic. Also tell me in which version of the bind this insist assertion 
> failure due to pending receive on the socket is fixed. 
> 
> 
> Regards & Thanks,
> Manasa S

Short answer - you are using a vulnerable version of BIND, upgrade it..
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