netdev - Re: [PATCH net] net/hamradio/6pack: use mod

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Date:   Wed, 02 Jan 2019 10:27:52 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     edumazet@...gle.com
Cc:     netdev@...r.kernel.org, eric.dumazet@...il.com,
        syzkaller@...glegroups.com, ajk@...nets.uni-bremen.de
Subject: Re: [PATCH net] net/hamradio/6pack: use mod_timer() to rearm timers

From: Eric Dumazet <edumazet@...gle.com>
Date: Wed,  2 Jan 2019 04:24:20 -0800

> Using del_timer() + add_timer() is generally unsafe on SMP,
> as noticed by syzbot. Use mod_timer() instead.
 ...
> Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> Reported-by: syzbot <syzkaller@...glegroups.com>
> Cc: Andreas Koensgen <ajk@...nets.uni-bremen.de>

Applied and queued up for -stable, thanks.