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Message-Id: <20160705223938.1441A7BC185@smtpvmsrv1.mitre.org>
Date: Tue, 5 Jul 2016 18:39:38 -0400 (EDT)
From: cve-assign@...re.org
To: marco.gra@...il.com
Cc: cve-assign@...re.org, oss-security@...ts.openwall.com
Subject: Re: BUG_ON crash in linux 4.7-rc6/master skbuff.c
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Hash: SHA256
> this program will crash the linux kernel 4.7-rc6 and current master in a
> voluntary panic() call triggered at a BUG_ON in net/core/skbuff.c:3051
>
> kernel BUG at net/core/skbuff.c:3051!
>
> in a qemu environment with kASAN enabled in a syzkaller-kind setup
> [ 59.831394] kernel BUG at net/core/skbuff.c:3051!
> [ 59.831802] invalid opcode: 0000 [#1] SMP KASAN
> [ 59.844495] [<ffffffff82c54dba>] udpv6_queue_rcv_skb+0x4fa/0x15b0
> [ 59.845048] [<ffffffff82c56b36>] __udp6_lib_rcv+0xcc6/0x1d20
> [ 59.845540] [<ffffffff82c57bb1>] udpv6_rcv+0x21/0x30
> [ 59.845975] [<ffffffff82bf5971>] ip6_input_finish+0x3a1/0x1170
> [ 59.846510] [<ffffffff82bf7faa>] ip6_input+0xda/0x1f0
> [ 59.846950] [<ffffffff82bf7ed0>] ? ipv6_rcv+0x1790/0x1790
> [ 59.847418] [<ffffffff8296ce36>] ? __netif_receive_skb+0x36/0x170
> [ 59.883546] Kernel panic - not syncing: Fatal exception in interrupt
> reproducer --- derp2.c
>
> r[0] = syscall(SYS_mmap, ...
> r[1] = syscall(SYS_socket, ...
> r[3] = syscall(SYS_bind, ...
> r[6] = syscall(SYS_sendto, ...
> r[13] = syscall(SYS_setsockopt, ...
> r[14] = syscall(SYS_dup, ...
> r[21] = syscall(SYS_write, ...
Use CVE-2016-6162.
- --
CVE Assignment Team
M/S M300, 202 Burlington Road, Bedford, MA 01730 USA
[ A PGP key is available for encrypted communications at
http://cve.mitre.org/cve/request_id.html ]
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