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authorEric Dumazet <edumazet@google.com>2017-02-12 14:03:52 -0800
committerDavid S. Miller <davem@davemloft.net>2017-02-12 22:14:49 -0500
commit8b74d439e1697110c5e5c600643e823eb1dd0762 (patch)
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parent7f677633379b4abb3281cdbe7e7006f049305c03 (diff)
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net/llc: avoid BUG_ON() in skb_orphan()
It seems nobody used LLC since linux-3.12. Fortunately fuzzers like syzkaller still know how to run this code, otherwise it would be no fun. Setting skb->sk without skb->destructor leads to all kinds of bugs, we now prefer to be very strict about it. Ideally here we would use skb_set_owner() but this helper does not exist yet, only CAN seems to have a private helper for that. Fixes: 376c7311bdb6 ("net: add a temporary sanity check in skb_orphan()") Signed-off-by: Eric Dumazet <edumazet@google.com> Reported-by: Andrey Konovalov <andreyknvl@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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