sctp: check the unrecognized ASCONF parameter before access it
This patch fix to check the unrecognized ASCONF parameter before access it. Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com> Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
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@ -2861,6 +2861,11 @@ static __be16 sctp_process_asconf_param(struct sctp_association *asoc,
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addr_param = (union sctp_addr_param *)
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((void *)asconf_param + sizeof(sctp_addip_param_t));
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if (asconf_param->param_hdr.type != SCTP_PARAM_ADD_IP &&
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asconf_param->param_hdr.type != SCTP_PARAM_DEL_IP &&
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asconf_param->param_hdr.type != SCTP_PARAM_SET_PRIMARY)
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return SCTP_ERROR_UNKNOWN_PARAM;
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switch (addr_param->v4.param_hdr.type) {
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case SCTP_PARAM_IPV6_ADDRESS:
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if (!asoc->peer.ipv6_address)
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@ -2958,9 +2963,6 @@ static __be16 sctp_process_asconf_param(struct sctp_association *asoc,
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sctp_assoc_set_primary(asoc, peer);
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break;
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default:
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return SCTP_ERROR_UNKNOWN_PARAM;
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break;
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}
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return SCTP_ERROR_NO_ERROR;
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