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    SubjectRe: [PATCH 4.14 09/89] net: Prevent invalid access to skb->prev in __qdisc_drop_all
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    From: Christoph Paasch <cpaasch@apple.com>
    Date: Fri, 14 Dec 2018 07:52:26 -0800

    > I don't think this patch needs to be backported. I haven't hit this panic on
    > v4.14.x (although, I only have been using v4.14.79 for now - not yet the
    > latest one). And the commits that seem to have introduced the issue haven't
    > been backported either AFAICS. That being said, I don't think a backport
    > would cause any side-effects.
    >
    > Or have you seen reports of this panic in the stable branches?
    >
    > (same for the other stable branches v4.4,... - cfr., the other mails
    > regarding this patch here)

    I was being ultra paranoid when I decided to submit this to 4.14 too,
    and as Eric says it does not harm.

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