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9dde0cd3b1
First user of skb_poison_list is in kfree_skb_list_reason, to catch bugs earlier like introduced in commiteedade12f4("net: kfree_skb_list use kmem_cache_free_bulk"). For completeness mentioned bug have been fixed in commitf72ff8b81e("net: fix kfree_skb_list use of skb_mark_not_on_list"). In case of a bug like mentioned commit we would have seen OOPS with: general protection fault, probably for non-canonical address 0xdead000000000870 And content of one the registers e.g. R13: dead000000000800 In this case skb->len is at offset 112 bytes (0x70) why fault happens at 0x800+0x70 = 0x870 Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>