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sctp: check the unrecognized ASCONF parameter before access it

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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>
This commit is contained in:
Wei Yongjun
2009-06-16 14:48:24 +08:00
committed by Vlad Yasevich
parent 425e0f6852
commit 44e65c1ef1
1 changed files with 5 additions and 3 deletions
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8
net/sctp/sm_make_chunk.c
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@ -2861,6 +2861,11 @@ static __be16 sctp_process_asconf_param(struct sctp_association *asoc,
addr_param = (union sctp_addr_param *) addr_param = (union sctp_addr_param *)
((void *)asconf_param + sizeof(sctp_addip_param_t)); ((void *)asconf_param + sizeof(sctp_addip_param_t));
if (asconf_param->param_hdr.type != SCTP_PARAM_ADD_IP &&
asconf_param->param_hdr.type != SCTP_PARAM_DEL_IP &&
asconf_param->param_hdr.type != SCTP_PARAM_SET_PRIMARY)
return SCTP_ERROR_UNKNOWN_PARAM;
switch (addr_param->v4.param_hdr.type) { switch (addr_param->v4.param_hdr.type) {
case SCTP_PARAM_IPV6_ADDRESS: case SCTP_PARAM_IPV6_ADDRESS:
if (!asoc->peer.ipv6_address) if (!asoc->peer.ipv6_address)
@ -2958,9 +2963,6 @@ static __be16 sctp_process_asconf_param(struct sctp_association *asoc,
sctp_assoc_set_primary(asoc, peer); sctp_assoc_set_primary(asoc, peer);
break; break;
default:
return SCTP_ERROR_UNKNOWN_PARAM;
break;
} }
return SCTP_ERROR_NO_ERROR; return SCTP_ERROR_NO_ERROR;