Re: [PATCH] netfilter: fix int overflow in xt_alloc_table_info()

[Pablo Neira Ayuso]

On Thu, Dec 28, 2017 at 09:48:54AM +0100, Dmitry Vyukov wrote:
> syzkaller triggered OOM kills by passing ipt_replace.size = -1
> to IPT_SO_SET_REPLACE. The root cause is that SMP_ALIGN() in
> xt_alloc_table_info() causes int overflow and the size check passes
> when it should not. SMP_ALIGN() is no longer needed leftover.
> 
> Remove SMP_ALIGN() call in xt_alloc_table_info().

Applied, thanks.