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d3dcd4efe2ad1ad1865b2fe5c863c1ebd9482a84
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[NETFILTER]: xt_sctp: fix endless loop caused by 0 chunk length
Fix endless loop in the SCTP match similar to those already fixed in
the SCTP conntrack helper (was CVE-2006-1527).
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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@@ -62,7 +62,7 @@ |
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do { |
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sch = skb_header_pointer(skb, offset, sizeof(_sch), &_sch); |
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- if (sch == NULL) { |
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+ if (sch == NULL || sch->length == 0) { |
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duprintf("Dropping invalid SCTP packet.\n"); |
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*hotdrop = 1; |
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return 0; |