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SubjectRe: [PATCH] ipv4: gre: Fix null pointer dereference in gre_cisco_err()
At 2014-03-25 03:14:17,"David Miller" <> wrote:
>From: Wei Zhang <>
>Date: Mon, 24 Mar 2014 15:34:31 +0800
>> When use the gre vport, openvswitch register a gre_cisco_protocol but
>> does not supply a err_handler with it. The gre_cisco_err() call the
>> err_handler without existence check, cause the kernel crash.
>> This patch base on v3.14-rc7. But the bug affect all kernel newer than
>> 3.11!
>> Signed-off-by: Wei Zhang <>
>Rather, openvswitch should provide an appropriate ->err_handler() that

Thank you for your explanation, I misunderstand it .
I'm very sorry about this bothering!

>I'm not applying this patch.
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