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Re: linux-next: kernel panic in ipv6_defrag

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  Re: linux-next: kernel panic in ipv6_defrag Florian Westphal <fw@strlen.de> - 2015-12-23 10:00 +0100
    Re: linux-next: kernel panic in ipv6_defrag Junxiao Bi <junxiao.bi@oracle.com> - 2015-12-25 02:30 +0100

#1297279 — Re: linux-next: kernel panic in ipv6_defrag

Junxiao Bi <junxiao.bi@oracle.com> wrote:
> The following panic happened when I run ocfs2-test on linux-next. Kernel
> config is attached.
> 
> [64910.905501] BUG: unable to handle kernel NULL pointer dereference at
>           (null)
> [64910.906466] IP: [<ffffffff8183cc8d>] nf_ct_frag6_gather+0x7ad/0x9c0
[..]
> ocfs2_stack_o2cb(O) ocfs2_dlm(O) ocfs2_nodemanager(O) ocfs2_stackglue(O)
> iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi xen_kbdfront
> xen_netfront xen_fbfront xen_blkfront [last unloaded: ocfs2_stackglue]
> [64910.906466] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G           O
> 4.4.0-rc5-next-20151217 #1

Seems like this snapshot still lacks

e97ac12859dbf4d3ee0eddb9798867541d1d1e1e
("netfilter: ipv6: nf_defrag: fix NULL deref panic"),
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/net/ipv6/netfilter/nf_conntrack_reasm.c?id=e97ac12859dbf4d3ee0eddb9798867541d1d1e1e

Its included starting with next-20151221.

Please report back if it occurs with above commit present.

Thanks.
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#1298074

On 12/23/2015 04:59 PM, Florian Westphal wrote:
> Junxiao Bi <junxiao.bi@oracle.com> wrote:
>> The following panic happened when I run ocfs2-test on linux-next. Kernel
>> config is attached.
>>
>> [64910.905501] BUG: unable to handle kernel NULL pointer dereference at
>>           (null)
>> [64910.906466] IP: [<ffffffff8183cc8d>] nf_ct_frag6_gather+0x7ad/0x9c0
> [..]
>> ocfs2_stack_o2cb(O) ocfs2_dlm(O) ocfs2_nodemanager(O) ocfs2_stackglue(O)
>> iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi xen_kbdfront
>> xen_netfront xen_fbfront xen_blkfront [last unloaded: ocfs2_stackglue]
>> [64910.906466] CPU: 0 PID: 0 Comm: swapper/0 Tainted: G           O
>> 4.4.0-rc5-next-20151217 #1
> 
> Seems like this snapshot still lacks
> 
> e97ac12859dbf4d3ee0eddb9798867541d1d1e1e
> ("netfilter: ipv6: nf_defrag: fix NULL deref panic"),
> https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/net/ipv6/netfilter/nf_conntrack_reasm.c?id=e97ac12859dbf4d3ee0eddb9798867541d1d1e1e
> 
> Its included starting with next-20151221.
> 
> Please report back if it occurs with above commit present.
Looks issue resolved with this fix. Thank you.
> 
> Thanks.
> --
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> the body of a message to majordomo@vger.kernel.org
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> Please read the FAQ at  http://www.tux.org/lkml/
> 

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