netdev - Re: [PATCH net] ipv4: ensure rcu_read_lock() in ipv4_link

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Date:   Sun, 14 Apr 2019 13:44:06 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     edumazet@...gle.com
Cc:     netdev@...r.kernel.org, eric.dumazet@...il.com,
        syzkaller@...glegroups.com, ssuryaextr@...il.com
Subject: Re: [PATCH net] ipv4: ensure rcu_read_lock() in ipv4_link_failure()

From: Eric Dumazet <edumazet@...gle.com>
Date: Sat, 13 Apr 2019 17:32:21 -0700

> fib_compute_spec_dst() needs to be called under rcu protection.
> 
> syzbot reported :
 ...
> Fixes: ed0de45a1008 ("ipv4: recompile ip options in ipv4_link_failure")
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> Reported-by: syzbot <syzkaller@...glegroups.com>

Applied, thanks Eric.

Please take a look at the cipso_v4_error case.

Thanks.