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netfilter: ipv6: nf_defrag: Kill frag queue on RFC2460 failure

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[ Upstream commit ea23d5e3bf ]

Failures were seen in ICMPv6 fragmentation timeout tests if they were
run after the RFC2460 failure tests. Kernel was not sending out the
ICMPv6 fragment reassembly time exceeded packet after the fragmentation
reassembly timeout of 1 minute had elapsed.

This happened because the frag queue was not released if an error in
IPv6 fragmentation header was detected by RFC2460.

Fixes: 83f1999cae ("netfilter: ipv6: nf_defrag: Pass on packets to stack per RFC2460")
Signed-off-by: Subash Abhinov Kasiviswanathan <subashab@codeaurora.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Subash Abhinov Kasiviswanathan 2018-01-31 04:50:01 -07:00 committed by Greg Kroah-Hartman
parent 2cd5100363
commit 074372c812
1 changed files with 1 additions and 0 deletions
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1
net/ipv6/netfilter/nf_conntrack_reasm.c
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@ -263,6 +263,7 @@ static int nf_ct_frag6_queue(struct frag_queue *fq, struct sk_buff *skb,
* this case. -DaveM
*/
pr_debug("end of fragment not rounded to 8 bytes.\n");
inet_frag_kill(&fq->q, &nf_frags);
return -EPROTO;
}
if (end > fq->q.len) {