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ipv6: frags: Fix bogus skb->sk in reassembled packets
[ Upstream commitd15f5ac8de
] It was reported that IPsec would crash when it encounters an IPv6 reassembled packet because skb->sk is non-zero and not a valid pointer. This is because skb->sk is now a union with ip_defrag_offset. This patch fixes this by resetting skb->sk when exiting from the reassembly code. Reported-by: Xiumei Mu <xmu@redhat.com> Fixes:219badfaad
("ipv6: frags: get rid of ip6frag_skb_cb/...") Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -384,6 +384,7 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff *prev,
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if (skb_try_coalesce(head, fp, &headstolen, &delta)) {
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kfree_skb_partial(fp, headstolen);
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} else {
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fp->sk = NULL;
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if (!skb_shinfo(head)->frag_list)
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skb_shinfo(head)->frag_list = fp;
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head->data_len += fp->len;
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