From: Eric Dumazet <[email protected]>
Date: Wed, 26 Jun 2019 03:04:50 -0700
> sysbot reported that we lack appropriate rcu_read_lock()
> protection in fib_dump_info_fnhe()
>
> net/ipv4/route.c:2875 suspicious rcu_dereference_check() usage!
>
> other info that might help us debug this:
...
> Fixes: ee28906fd7a1 ("ipv4: Dump route exceptions if requested")
> Signed-off-by: Eric Dumazet <[email protected]>
> Cc: Stefano Brivio <[email protected]>
> Cc: David Ahern <[email protected]>
> Reported-by: syzbot <[email protected]>
Applied, we can adjust the 'err' initialization or whatever as a followup.
