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From: David Ahern <dsa@cumulusnetworks.com>
To: Dmitry Vyukov <dvyukov@google.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>,
	Mahesh Bandewar <maheshb@google.com>,
	Eric Dumazet <edumazet@google.com>,
	David Miller <davem@davemloft.net>,
	Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>,
	James Morris <jmorris@namei.org>,
	Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>,
	Patrick McHardy <kaber@trash.net>,
	netdev <netdev@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Cong Wang <xiyou.wangcong@gmail.com>,
	syzkaller <syzkaller@googlegroups.com>
Subject: Re: net: heap out-of-bounds in fib6_clean_node/rt6_fill_node/fib6_age/fib6_prune_clone
Date: Tue, 25 Apr 2017 09:57:27 -0600	[thread overview]
Message-ID: <01689f75-6713-a371-1dd7-8446ad2bfba7@cumulusnetworks.com> (raw)
In-Reply-To: <CACT4Y+aDzAYs9mbNGeFEkYSB2wTwomZTGEKn4hDH0PAb4uiLqw@mail.gmail.com>

On 3/7/17 2:21 AM, Dmitry Vyukov wrote:
> ------------[ cut here ]------------
> WARNING: CPU: 2 PID: 3990 at net/ipv6/ip6_fib.c:991
> fib6_add+0x2e12/0x3290 net/ipv6/ip6_fib.c:991 net/ipv6/ip6_fib.c:991
> Kernel panic - not syncing: panic_on_warn set ...
> 
> CPU: 2 PID: 3990 Comm: kworker/2:4 Not tainted 4.11.0-rc1+ #311
> Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
> Workqueue: ipv6_addrconf addrconf_dad_work
> Call Trace:
>  __dump_stack lib/dump_stack.c:16 [inline]
>  __dump_stack lib/dump_stack.c:16 [inline] lib/dump_stack.c:52
>  dump_stack+0x2fb/0x3fd lib/dump_stack.c:52 lib/dump_stack.c:52
>  panic+0x20f/0x426 kernel/panic.c:180 kernel/panic.c:180
>  __warn+0x1c4/0x1e0 kernel/panic.c:541 kernel/panic.c:541
>  warn_slowpath_null+0x2c/0x40 kernel/panic.c:584 kernel/panic.c:584
>  fib6_add+0x2e12/0x3290 net/ipv6/ip6_fib.c:991 net/ipv6/ip6_fib.c:991
>  __ip6_ins_rt+0x60/0x80 net/ipv6/route.c:948 net/ipv6/route.c:948
>  ip6_ins_rt+0x19b/0x220 net/ipv6/route.c:959 net/ipv6/route.c:959
>  __ipv6_ifa_notify+0x62e/0x7a0 net/ipv6/addrconf.c:5485 net/ipv6/addrconf.c:5485
>  ipv6_ifa_notify+0xdf/0x1d0 net/ipv6/addrconf.c:5518 net/ipv6/addrconf.c:5518
>  addrconf_dad_completed+0xe6/0x950 net/ipv6/addrconf.c:3983
> net/ipv6/addrconf.c:3983
>  addrconf_dad_begin net/ipv6/addrconf.c:3797 [inline]

Similarly for this one.

  parent reply	other threads:[~2017-04-25 15:57 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-03 14:39 net: heap out-of-bounds in fib6_clean_node/rt6_fill_node/fib6_age/fib6_prune_clone Dmitry Vyukov
2017-03-03 19:12 ` David Ahern
2017-03-03 19:14   ` Dmitry Vyukov
2017-03-04 18:57   ` Dmitry Vyukov
2017-03-04 19:00     ` Dmitry Vyukov
2017-03-04 20:15     ` Eric Dumazet
2017-03-05 10:53       ` Dmitry Vyukov
2017-03-06 17:31       ` David Ahern
2017-03-06 18:51         ` Dmitry Vyukov
2017-03-06 23:41           ` David Ahern
2017-03-07  8:43             ` Dmitry Vyukov
2017-03-07  9:21               ` Dmitry Vyukov
2017-03-07 18:03                 ` David Ahern
2017-03-07 18:13                   ` Dmitry Vyukov
2017-03-07 18:43                     ` David Ahern
2017-03-07 19:02                       ` Dmitry Vyukov
2017-03-07 19:30                         ` Dmitry Vyukov
2017-03-07 20:00                           ` Dmitry Vyukov
2017-03-08 11:55                             ` Dmitry Vyukov
2017-03-27 12:42                               ` Dmitry Vyukov
2017-03-27 13:57                                 ` David Ahern
2017-03-27 14:23                                   ` Dmitry Vyukov
2017-04-18 20:43                                     ` Andrey Konovalov
2017-04-18 23:20                                       ` David Ahern
2017-04-19  1:09                                         ` Andrey Konovalov
2017-04-19 16:09                                       ` David Ahern
2017-04-19 16:12                                         ` Andrey Konovalov
2017-04-19 16:29                                           ` David Ahern
2017-04-19 23:47                                           ` Cong Wang
2017-04-19 23:51                                             ` David Ahern
2017-04-20  8:35                                               ` Dmitry Vyukov
2017-04-20 12:10                                                 ` Andrey Konovalov
2017-04-20 15:28                                                   ` Andrey Konovalov
2017-04-20 15:29                                                     ` Andrey Konovalov
2017-04-20 15:35                                                     ` David Ahern
2017-04-20 15:39                                                       ` Andrey Konovalov
2017-04-20 16:09                                                         ` Andrey Konovalov
2017-04-21 14:27                                                           ` David Ahern
2017-04-21 16:47                                                             ` Eric Dumazet
2017-04-21 18:25                                                               ` David Ahern
2017-04-25 15:51                                       ` David Ahern
2017-04-25 15:57                 ` David Ahern [this message]
2017-03-07 17:17               ` David Ahern
2017-03-07 17:45                 ` Dmitry Vyukov
2017-03-07 17:57               ` David Ahern
2017-04-25 15:56     ` David Ahern
2017-04-25 16:36       ` Andrey Konovalov
2017-04-25 16:38         ` Andrey Konovalov
2017-04-25 16:40           ` David Ahern

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