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SCTP: Fix to handle invalid parameter length correctly 

If an INIT with invalid parameter length look like this:
Parameter Type : 1
Parameter Length: 800
and not contain any payload, SCTP will ignore this  parameter and send
back a INIT-ACK.
This patch is fix to handle this invalid parameter length correctly.

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 2007-08-06 13:55:58 +08:00 committed by Vlad Yasevich
parent 609ee4679b
commit cb243a1a9f
1 changed files with 1 additions and 1 deletions
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2
net/sctp/sm_make_chunk.c
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@ -1833,7 +1833,7 @@ int sctp_verify_init(const struct sctp_association *asoc,
* VIOLATION error. We build the ERROR chunk here and let the normal * VIOLATION error. We build the ERROR chunk here and let the normal
* error handling code build and send the packet. * error handling code build and send the packet.
*/ */
if (param.v < (void*)chunk->chunk_end - sizeof(sctp_paramhdr_t)) { if (param.v != (void*)chunk->chunk_end) {
sctp_process_inv_paramlength(asoc, param.p, chunk, errp); sctp_process_inv_paramlength(asoc, param.p, chunk, errp);
return 0; return 0;
} }